Key takeaways
- INE's flash counted 604,900 US nights in Portugal in July 2026, down 3.1% on a month that had risen 14.1%, and 568,900 in August, up 5.8%; July and August together were about 1.0% above 2025 (derived).
- Currency does not explain the dip: the ECB's July 2026 mean was 1.1417 dollars per euro against 1.1677 a year earlier, making the euro 2.2% weaker, and US nights grew 5.4% in January and February when the euro was 13% stronger (Eurostat ert_bil_eur_m).
- The Iran conflict acts through fuel and fares: the BLS airfare index was up 25.5% in July and 23.4% in August on all routes, but US-citizen departures to Europe fell only 1.2% in July (NTTO) and Spain's US arrivals rose 5.5%.
- Cirium's March forward bookings showed US-to-Europe July travel down 11.2%; the realised NTTO outcome was −1.2%, so forward data overstated the fall by about ten points (derived).
- The dip sat in Grande Lisboa (−16,900 nights, −6.0%) and the Algarve (−6,300, −6.7%), while Norte rose 10,700 (+9.3%); Lisbon airport passengers were −0.2% in Q3 against Porto's +7.1% (VINCI Airports).
- No measured fall in US seats supports the capacity explanation: OAG data cited by Turespaña show seats from Portugal to the US up 3.2% for April to September, and no July US–Lisbon seat figure was found.
- A high base explains part of July: July 2026 stood 10.6% above July 2024, but August stood 16.2% above August 2024, so July was about 5.6 points weaker on a two-year view (derived).
- ANAV said on 2 September that no data allow the July fall to be attributed mainly to prices, Spanish and Italian competition or the World Cup, and AHP's 19 October claim that US demand in Lisbon is still falling rests on a survey with no published sample.
American visitors spent 604,900 nights in Portuguese tourist accommodation in July 2026, 3.1% fewer than a year earlier. It was only the second year-on-year fall for the US market since the pandemic. A month later the same series rose 5.8%, and July and August together finished about 1.0% above the same two months of 2025 (derived).
That makes the July dip an odd thing to explain: one soft month between two firm ones. Three explanations dominate the coverage, and our planning file used them as the title. Currency says a weaker dollar priced Americans out. Capacity says there were too few seats and a Lisbon airport with no room to grow. Conflict says the war that began on 28 February 2026 with strikes on Iran frightened travellers and roughly doubled the price of jet fuel. Each has been asserted by someone with a platform. Almost none has been checked against a number.
We checked each one. Currency fails: the euro was 2.2% weaker against the dollar in July than a year earlier, which made Portugal slightly cheaper for Americans. Conflict is real, but it acts through fuel and fares, and fares rose further in August, the month nights rebounded. Capacity fits the map, since Lisbon fell 6.0% while the North rose 9.3%, yet the only seat figure we could find shows US-bound seats from Portugal up 3.2%. No source measures the cause, and several of the trade bodies quoted in the press say so themselves. Our American tourists analysis covers the long series. This article asks only why one month went wrong and which explanations deserve to be repeated.
A soft month between two firm ones
The monthly series comes from INE's flash estimates, which reach the public through press reproductions because INE's own website could not be reached during research. Presstur's 3 September report put US nights at 604,900 in July, down 19,300, which moved the United States from third to fourth among foreign markets. Germany, at 607,900, finished about 3,000 nights ahead (derived from the same release). In June the US had been second, with 653,200 nights; the June growth rate appears as +3.4% in Presstur's flash report, +2.8% in Observador's and +2.9% after revision. August brought 568,900 nights, up 5.8%, and fifth place behind the UK, Spain, France and Germany. For January to July the US was up 3.4%, or 104,800 nights, against 6.7% a year earlier.
Working back from the reported changes gives about 624,200 US nights for July 2025 and about 537,700 for August 2025 (both derived). July and August 2026 together come to about 1,173,800 nights against 1,161,900 a year earlier. The summer did not lose Americans. In 2025 July ran about 16% above August. In 2026 it ran about 6% above (derived). The combined figure points to a reshuffle of the peak inside the summer more than a loss, though no source confirms that reading.
Geography narrows the question. Grande Lisboa lost 16,900 US nights (−6.0%), the Algarve 6,300 (−6.7%), and Norte gained 10,700 (+9.3%), the only mainland region to rise (INE via Rádio Alto Minho and Jornal Económico). Lisbon alone accounts for about 88% of the national net fall of 19,300 (derived). Any explanation has to account for Lisbon and the Algarve falling while Porto and the North grew, in the same month, under the same dollar and the same war.
Currency: the euro was cheaper in July than a year before
The currency argument is the easiest to test, because exchange rates are published daily. The ECB's monthly mean rate, taken from Eurostat's dataset ert_bil_eur_m, was 1.1417 US dollars per euro in July 2026 against 1.1677 in July 2025. The euro was 2.2% weaker, so a dollar bought about 2.3% more euros (derived). The Federal Reserve's H.10 series gives 1.1423 for July 2026 and agrees. For an American planning a Lisbon trip, the exchange rate improved slightly year on year.
The history is more interesting than July alone. At the start of 2026 the euro was far stronger than a year earlier: 1.1738 in January against 1.0354, a rise of 13.4%, and 1.1824 in February against 1.0413, a rise of 13.6% (derived). The gap narrowed to 7.0% in March, 4.4% in April and 3.5% in May, and closed in June at 1.1518 against 1.1516. US nights in January and February still grew 5.4%. If a strong euro depressed American demand, it did so while nights were growing at their usual pace, and it stopped months before July.
Two further checks point the same way. August's mean rate of 1.1593 was 1.5% stronger for the euro than July's 1.1417 (derived), yet August nights rose 5.8%. And Spain, on the same currency, recorded 5.5% more American tourists in July. A lagged effect through spring bookings remains possible in theory, since the euro was 3.5% to 7.0% stronger year on year from March to May. No source dates the bookings behind July's nights, and the same lag would have hit June, which grew. Hotel prices in euros are a separate channel: the national average daily rate rose 3.2% in July. We rate the currency claim not supported.
Conflict: a fuel shock that reached fares
The conflict is the best documented of the three explanations, and its clearest effect is on the cost of flying. A compiled chronology (Wikipedia, so a secondary source) has Israel and the United States striking Iran on 28 February 2026, Iran closing the Strait of Hormuz, a ceasefire in early April, an Islamabad memorandum on 17 June and a collapse of the ceasefire on 8 July. The July date appears in that one source only. Jornal Económico's 20 July report on travel agencies was framed around the resumption of the conflict, which is consistent with it. The US State Department updated its Worldwide Caution on 22 July. The text refers to the Middle East and does not name Europe.
Jet fuel roughly doubled within weeks of the closure, according to Tourism Economics on 16 April, and Lusa reported TAP's average jet fuel cost at $1,371.77 a tonne to 6 April against $702.35 in 2025. TAP's fuel bill rose 52.3% in the second quarter and 18.7% in the half-year, and the airline reported a first-half loss of €99.2M. The Bureau of Labor Statistics airline fare index, which covers all routes and not only the Atlantic, was up 14.9% in March, 20.7% in April, 26.7% in May, 26.5% in June and 25.5% in July from a year earlier. Part of that jump is a depressed 2025 base, when the index fell year on year in every month from March to June. Fares then stayed high. The seasonally adjusted index rose a further 2.7% from July to August (derived) and was still 23.4% above 2025.
A fuel shock of that size should reduce travel, and the US-side data show a small effect. NTTO counted US-citizen departures to Europe up 2.8% in March, 5.2% in April and 2.2% in May, then down 2.1% in June and 1.2% in July. Total US-citizen departures were up 2.3% in July while US-citizen air departures fell 2.2%. The turn is real and mild. Forward bookings had suggested something worse. Cirium's March snapshot of online-agency and distribution-system bookings showed July US-to-Europe bookings 11.2% lower, with Athens at −19.9% and Frankfurt at −26.8%. Lisbon and Porto were absent from the city list. The realised July outcome was about ten points better (derived), so forward data from third-party channels overstated the fall.
The peer comparison does not fit a simple story of Americans avoiding Southern Europe. Greece, closer to the conflict, recorded 12.1% fewer American arrivals in June (Bank of Greece, via Euronews) and, according to a secondary aggregator, 17.4% fewer in July. Spain recorded 5.5% more in July. Portugal's nights fell 3.1% in July and rose 5.8% in August. Oxford Economics, quoted by Lusa on 1 June, expected the net effect on Portugal to be modest and positive as demand moved away from the Gulf, and the travel agents' association ANAV said on 20 July that it expected no immediate effect on source-market demand.
The airlines tell a similar mixed story. Delta's second-quarter call on 10 July described transatlantic summer demand as strong, and its third-quarter call on 9 October reported transatlantic unit revenue up 11% with fuel more than $500M above guidance. Both come from transcripts, one marked as AI-generated, and we have not checked them against recordings. Secondary reports say Delta and United trimmed capacity by about 3.5% and 5% through September, mostly off-peak, with no Portugal split. Neither carrier's quoted remarks mention Lisbon. Our reading is that the conflict is the likeliest background cause of dearer fares and a poor explanation for a single month, because nothing in Portugal's August, Spain's July or the US outbound totals shows demand fleeing.
Capacity: the hypothesis that fits the map
Capacity is the explanation the trade offers most often. Cristina Siza Vieira of the hotel association AHP told ECO on 2 September that tourists go where there is air capacity, and the tourism confederation CTP's Francisco Calheiros said seat supply had grown only slightly while fares rose. Neither gave a number for US seats.
What the numbers show is a hub at its ceiling. VINCI Airports reported 10.213 million passengers at Lisbon in the third quarter, down 0.2%, on 61,568 movements, down 0.3%, while Porto grew 7.1% and Faro 3.7%. For the nine months Lisbon is up 0.7%. Lusa reported that summer 2026 slot requests totalled 164,000 and allocations 147,000, leaving about 17,000 unmet and about 20,000 allocated slots on a waiting list. Our Lisbon airport capacity analysis sets out the declared limit of 38 movements an hour and the plans to raise it. When an airport cannot add flights, growth in one market has to come from larger aircraft, fuller planes or another market's seats.
TAP's own figures show fuller planes, not more of them. First-half capacity rose 1.7%, traffic 5.9% and the load factor 3.4 points to 85.4%. TAP is the largest carrier of American visitors, with 43.0% on TravelBI's current US page and 29.4% on an earlier version of the same page. With little spare room on aircraft, a fall in demand or a trimmed flight shows quickly in nights. Our TAP privatisation analysis covers the Lufthansa decision of 14 October.
The only seat figure we found points the other way. OAG data cited by Turespaña in April showed scheduled seats from Portugal to the United States for April to September 2026 up 3.2% on the same period of 2025, against 1.9% for all destinations. That is Portugal-origin seats nationally, taken after the war began and before the US carriers' later trims. It cannot show what happened to US-to-Lisbon seats in July, and we found no Cirium, OAG or Aeroroutes figure that does.
The North's rise is the strongest evidence for a capacity story. Delta started a daily New York JFK to Porto service with 216 seats on 21 May 2026, TAP made Porto to Boston a year-round route, and United flies seasonal Newark to Porto. Porto airport grew 7.1% in the third quarter. The head of the Porto and North tourism board, Luís Pedro Martins, attributes the region's US growth to these links. That is an opinion from an interested party, but it matches the numbers. Our Porto airport analysis documents the 21 new routes, and our US–Portugal flights guide lists every nonstop.
Lisbon's hotels report a weaker summer across the board. INE's July release shows Grande Lisboa as the only region with falling total revenue (−2.0%), and its August release repeated that (−1.6%). AHP's survey of 19 October found Lisbon the only region down on occupancy, price and RevPAR over June to September, at 82% occupancy, an average rate of €173 and RevPAR of €142, with 57% of surveyed Lisbon hoteliers reporting worse revenue than in 2025. AHP blamed the airport, oversupply and the border queues, and said North American tourists continue to decline. That perception conflicts with INE's August figure, and the survey gives no sample size or fieldwork dates.
Border queues are the second leg of the capacity story. The EU's entry-exit system became mandatory on 10 April 2026. Waits in December 2025 reached six to eight hours, and in May and June 2026 recurring waits passed an hour and sometimes reached two or three (ECO, 3 June). E-gates rose from 18 to 28 by 19 June and to 32 by the end of July, and by August peak waits were about an hour, according to Expresso via Portugal Resident. The timing is the problem for this explanation. The worst queues came before July, in months when US nights were still growing. Our EES and border queues analysis covers the data.
Capacity explains where the dip fell. It does not explain when. A constraint that bites in July should bite in August, and August's national US count rose 5.8%, though we could not find an August figure for Lisbon alone and Lisbon's total revenue fell again that month. Nor does the constraint fit the seat data. We rate it contested: consistent with the geography and the hotel data, unsupported by any measured fall in US seats.
The base effect and a July that moved into August
July 2025 was a very strong month. US nights rose 14.1% that July, and the hotel and restaurant association AHRESP pointed to the base in ECO's 2 September report. The arithmetic supports the point in part. Measured against July 2024, July 2026 still stood about 10.6% higher.
| Month | 2025 vs 2024 | 2026 vs 2025 | 2026 vs 2024 (derived) | US nights 2026 |
|---|---|---|---|---|
| July | +14.1% | −3.1% | +10.6% | 604,900 |
| August | +9.8% | +5.8% | +16.2% | 568,900 |
| July and August | +13.2% | 1,173,800 |
August tells a different story. August 2025 was also strong, up 9.8% in Jornal Económico's report at the time, and August 2026 added another 5.8%, leaving it 16.2% above August 2024 (derived). On a two-year view July is weaker than August by about 5.6 points. A high base explains part of July's fall and does not explain why July looked so much softer than the month after it.
The World Cup is the calendar explanation. It was scheduled for 11 June to 19 July in the United States, Canada and Mexico. ECO and ANAV raised it as a possible reason for Americans staying home, and ANAV added that no data attribute the fall to it. Delta said on its July call that the tournament was not significant enough to change its capacity decisions. The tournament's dates cover most of June, and US nights in June were up. The idea remains untested because no outbound data by destination exist.
A quieter possibility is a change in the shape of the American summer. The July-to-August ratio compressed from about 1.16 to about 1.06 (derived). Americans who might have travelled in early July may have gone later, or gone to a different country. Spain's provisional August figure, a 31.9% rise in US tourists, is large enough to raise the question, and we have not cross-checked it. Public data cannot settle which of these happened.
What the industry said, and what it could measure
The most useful sentence in the coverage came from ANAV's Miguel Quintas, who told ECO that no data currently allow the July fall to be attributed mainly to prices, competition from Spain and Italy, or the World Cup. AHP's Siza Vieira said one month cannot set a trend. CTP's Calheiros called talk of a change premature. AHRESP's Ana Jacinto called it a deceleration worth watching and observed that long-haul trips are among the first household expenses to be reconsidered. All four statements are opinions and all four are hedged.
| Explanation | What it predicts | What the data show | Verdict |
|---|---|---|---|
| Weaker dollar | Euro stronger than a year earlier in July | Euro 2.2% weaker; euro 13% stronger in Jan–Feb with US nights +5.4% | Not supported |
| Conflict, direct demand loss | US outbound and Southern Europe arrivals fall together, and Portugal falls again in August | NTTO Europe −1.2%; Greece −17.4%, Spain +5.5%; Portugal August +5.8% | Contested |
| Conflict through fuel and fares | Fares jump and stay high, travel slows | Airfare CPI +25.5% in July and +23.4% in August; US departures to Europe −1.2% | Consistent, cannot separate July from August |
| Lisbon capacity | Lisbon falls while Porto grows | Grande Lisboa −6.0%, Norte +9.3%; Lisbon airport −0.2%, Porto +7.1% in Q3 | Fits the map, not the calendar |
| Fewer US seats | US–Portugal seats fall in summer | OAG: seats from Portugal to the US +3.2% (Apr–Sep); US carrier trims 3.5–5% (secondary) | Unproven |
| Border queues (EES) | Dip follows the worst queues | Worst waits Dec 2025 and May–Jun 2026; US nights up in May and June | Not supported for July |
| High July 2025 base | Weaker growth after a strong year | July two-year +10.6% against August +16.2% | Partly supported |
The scorecard keeps each verdict to what the evidence can bear. The panel below tests ten specific claims, including two from our own files. One is the Grande Lisboa hotel line in our earlier American tourists article, where the only figure we could re-find was a revenue change, not an average rate. The other is our own planning assumption that July marked the start of a decline.
What would settle it
Four releases will do more than any further argument. INE's September flash is due around 30 October. It will show whether the Americans AHP's Siza Vieira predicted on 2 September, calling September the strongest month for the US market since 2023, arrived, and whether Lisbon's US nights recovered. INE's third-quarter release follows on 17 November. Banco de Portugal's receipts by market for July to September will show whether spending fell with nights. NTTO's August and September data will show whether the US-to-Europe turn in June and July continued.
The forward-looking number comes from Amadeus, relayed by Turismo de Portugal's TravelBI: 14.0% more US air passengers to Portugal for August 2026 to July 2027. We found it only as a relay, and forward bookings overstated the fall in March, so it carries the same caution. The longer constraint is Lisbon's airport, whose declared capacity is expected to rise from 2027. Americans can already choose Porto, where an American Airlines Philadelphia service is reported as planned for 2027, and the islands. Our US vs Spain comparison shows how close the race for the second-largest market has become, and why one weak month matters to it.
What this means for travelers, businesses and analysts
Travelers. Americans planning a trip can treat July as noise. Lisbon's hotels reported lower prices and occupancy through the summer, so the city is not short of rooms, and the American peak sits in June and September, when INE counted 653,200 and 658,000 US nights. Porto and the North have the new nonstops and the fastest growth. Expect fares to stay high while jet fuel does. Our Lisbon travel guide covers where to stay and what has changed, and our best time to visit Portugal guide lays out the months.
Tourism businesses and investors. The July evidence describes a Lisbon problem with two ingredients, a capped airport and a fare shock. It does not show that US demand has turned. Three thresholds would change that view: a second monthly fall in Lisbon's US nights in the September flash, US receipts growing slower than US nights in Banco de Portugal's third-quarter data, and US departures to Europe falling for a third month. Operators should plan for the Porto and island gateways to carry more of the growth until Lisbon's capacity rises.
Journalists and analysts. Safe to cite: 604,900 US nights in July 2026 (−3.1%) and 568,900 in August (+5.8%) on INE's flash; +3.4% for January to July; the ECB's monthly mean of 1.1417 against 1.1677 dollars per euro; the BLS airfare index at +25.5% in July (all routes); NTTO's US-citizen departures to Europe at −1.2%; Lisbon's third-quarter passengers at −0.2% against Porto's +7.1%. Do not repeat: that a weaker dollar caused the dip; that the Iran war cut US demand for Portugal; that North American tourists continue to decline as a measured fact; Cirium's −11% as an outcome; US spending of more than €1.1bn in the first quarter; or that 12% of Lisbon's slots went unmet. The series finding this adds is a method point: a monthly flash story needs a two-year base and a regional split before any cause is named.
Data & sources
Period covered: January to August 2026 monthly (INE, ECB, BLS); NTTO to July; airports to September
- Presstur, INE July 2026 flash · US nights 604,900 (−3.1%), market ranks, Germany 607.9k, regional context (3 Sep 2026) Accessed 26 Oct 2026.
- Presstur, INE August 2026 flash · US nights 568,900 (+5.8%), fifth place, other markets (30 Sep 2026) Accessed 26 Oct 2026.
- ECO, 'EUA abrandam e França recua' · July 2025 base (+14.1%), Jan–Jul +3.4% vs +6.7%, trade association comments (2 Sep 2026) Accessed 26 Oct 2026.
- Rádio Alto Minho (Jornal Económico), regional US nights · Grande Lisboa −16.9k, Algarve −6.3k, Norte +10.7k in July (11 Sep 2026) Accessed 26 Oct 2026.
- Eurostat ert_bil_eur_m (ECB reference rates) · Monthly mean USD per EUR, January 2025 to August 2026 Accessed 26 Oct 2026.
- NTTO via trade.gov, July 2026 international travel volume · US-citizen departures to Europe (2,754,661, −1.2%) and total (+2.3%) Accessed 26 Oct 2026.
- BLS CPI airline fares (republished by US Inflation Calculator) · Year-on-year airfare inflation, January to September 2026 and 2025 Accessed 26 Oct 2026.
- ECO, VINCI Airports traffic Q3 2026 · Lisbon 10.213M (−0.2%), Porto 5.433M (+7.1%), Faro 3.994M (+3.7%) (19 Oct 2026) Accessed 26 Oct 2026.
- Turespaña, Portugal summer 2026 trend report (OAG) · Scheduled seats from Portugal Apr–Sep 2026: US +3.2%, total +1.9% (April 2026) Accessed 26 Oct 2026.
- TravelBI, US market in numbers, January to June 2026 · H1 US nights +5.3%, receipts +8.1%, card spending +13.4%, airline shares (28 Aug 2026) Accessed 26 Oct 2026.
- Observador, AHP summer review · Lisbon occupancy, price and RevPAR, survey perception on North Americans (19 Oct 2026) Accessed 26 Oct 2026.
- INE Spain, Frontur July 2026 · US tourist arrivals 541,893 (+5.5%) (1 Sep 2026) Accessed 26 Oct 2026.
- INE Spain, Frontur August 2026 · US tourist arrivals 481,911 (+31.9%, provisional) (2 Oct 2026) Accessed 26 Oct 2026.
- Euronews, Greece tourism 2026 · Bank of Greece US arrivals June −12.1% (21 Aug 2026) Accessed 26 Oct 2026.
- TravelPulse, Cirium forward bookings · US to Europe July 2026 bookings −11.2% (March 2026 snapshot) Accessed 26 Oct 2026.
- RTP, TAP first-half 2026 results · Fuel cost +52.3% in Q2, first-half loss €99.2M (31 Aug 2026) Accessed 26 Oct 2026.
Methodology
Sources consulted: INE's monthly flash estimates as reproduced by Presstur, ECO, Jornal Económico, Observador and Lusa; Turismo de Portugal's TravelBI market pages; Eurostat's ert_bil_eur_m dataset (ECB reference-rate monthly means) with the Federal Reserve's H.10 series as a cross-check; the US Commerce Department's NTTO outbound releases; BLS airline-fare CPI as republished by the US Inflation Calculator and FRED; VINCI Airports and INE air-transport releases; Turespaña's OAG-based summer 2026 report; INE Spain's Frontur; the Bank of Greece via Euronews and a secondary aggregator; Cirium bookings via TravelPulse; Delta and United earnings-call transcripts; and AHP, ANAV, CTP and AHRESP statements as reported by ECO, Observador and Lusa.
Limitations: (1) INE's website could not be reached, so every INE figure is a press reproduction of a flash estimate, and we could not confirm whether July was revised. (2) INE counts registered nights, not visitors, and covers hotels, local accommodation with ten or more beds and rural lodging; stays with relatives and in unregistered rentals are invisible. (3) No public source gives seats, flights or fares on US–Lisbon routes for July 2026, so the capacity hypothesis is tested only through airport totals, regional patterns and one national seat figure. (4) Eurostat has no monthly US-resident series for Portugal or its peers, so peer comparisons mix nights, border arrivals and passenger counts. (5) The Iran-conflict chronology rests on a compiled secondary source for the 8 July ceasefire collapse. (6) Two-year changes multiply the 2025 growth rates reported at the time by the 2026 flash rates, and may differ after revision.
Contested and unverified claims are published with both values and the source of each. Trade-association statements are reported as opinion unless they carry a figure. Claims from our own files, including a Grande Lisboa hotel line in an earlier article and the planning assumption of a sustained dip, are tested on the same standard as outside claims and corrected in the claims panel.
Notes on the data
Data gaps: no July 2026 seat or flight count for US–Lisbon routes (Cirium, OAG or Aeroroutes); no Lisbon-only US nights for August; no confirmation of whether INE revised July in its 30 September release; no SIBS or Banco de Portugal US figures after June 2026; no NTTO figures for August or September; no US-specific border waiting times; no US-resident monthly series from Eurostat for Portugal, Spain, Italy or Greece; and no dollar-index series. INE's September flash is due around 30 October 2026.
Contested figures: June 2026 US growth +3.4% (Presstur flash), +2.8% (Observador flash) and +2.9% (revised, Postal do Algarve and Diário de Viseu); TAP's share of US visitors 43.0% (TravelBI current page) against 29.4% (earlier version); Lisbon's unmet slot requests 12% (Lusa headline) against 10.4% on its own totals (derived); the 8 July ceasefire collapse (one compiled source). Spain's August US arrivals (+31.9%, provisional) are unusually large and were not cross-checked.
Claims that failed verification: a weaker dollar caused the dip; the Iran war cut US demand for Portugal; US-to-Europe summer travel down 11% (superseded by NTTO's −1.2%); US spending above €1.1bn in the first quarter of 2026 (The Portugal News, incompatible with TravelBI's first-half total); 12% of Lisbon slot requests unmet; and, from our own files, Grande Lisboa July ADR €154.6, occupancy 74.1% and RevPAR −7.3%, of which only a −2.0% revenue change could be re-found.
Derived figures: July and August 2025 levels (about 624,200 and 537,700), the combined +1.0%, the two-year changes (+10.6%, +16.2%, +13.2%), the July-to-August ratios (1.16 and 1.06), Lisbon's 88% share of the net fall, Germany's 3,000-night lead, the 2.3% dollar gain, euro year-on-year changes by month, the August-over-July euro move, the ten-point gap between Cirium and NTTO, the 10.4% unmet slot share and the 2.7% airfare index rise from July to August. Self-reported or perception figures: AHP's survey (no sample size or dates), trade-association explanations, the head of Porto and North tourism's attribution of growth to air links, and airline-call statements from transcripts not checked against recordings.
Frequently asked questions
Why did US visitors to Portugal drop in July 2026?
INE's flash counted 604,900 US nights, 3.1% fewer than in July 2025. No source measures the cause, and ANAV says no data attribute it mainly to prices, competition from Spain and Italy or the World Cup. The best-supported contributing factors are a very strong July 2025 (+14.1%), a flat Lisbon airport and higher fares after jet fuel roughly doubled.
Did a weaker dollar cause the July 2026 dip in US tourists?
No. The ECB's July 2026 mean was 1.1417 dollars per euro against 1.1677 in July 2025, so the euro was 2.2% weaker and Portugal slightly cheaper for Americans. The euro was far stronger in January and February, and US nights still grew 5.4%.
Did the Iran war reduce American travel to Portugal?
Not directly on the evidence found. The war raised jet fuel and fares, with the BLS airfare index 25.5% higher in July on all routes. US-citizen departures to Europe fell 1.2% in July, Spain's US arrivals rose 5.5% and Portugal's August nights rose 5.8%. Oxford Economics expected a small net gain for Portugal.
Did American tourists come back to Portugal in August 2026?
Yes, on INE's flash: 568,900 US nights, up 5.8%, the second-fastest growth among the main markets after Canada. July and August together were about 1.0% above 2025 (derived).
Which parts of Portugal lost American visitors in July 2026?
Grande Lisboa lost 16,900 US nights (−6.0%) and the Algarve 6,300 (−6.7%). Norte gained 10,700 (+9.3%), the only mainland region to rise. Lisbon accounts for about 88% of the national net fall (derived).
Is Lisbon airport capacity the reason for fewer American tourists?
It fits the geography, since Lisbon's third-quarter passengers fell 0.2% while Porto's rose 7.1%. It does not explain why August recovered, and the only seat figure found (OAG via Turespaña, April 2026) showed seats from Portugal to the US up 3.2% for April to September.
Are Americans going to Spain and Italy instead of Portugal?
Spain recorded 5.5% more US tourists in July, and OAG seat data reported by TravelBI show summer 2026 US seats to Italy up 9.6% and to Spain up 8.3%. That is consistent with diversion but does not prove it, and ANAV says no data attribute the July fall to competition.
Are airport queues and the EES scaring American tourists away?
Queues were worst in December 2025 and in May and June 2026, when US nights were still rising. Peak waits were about an hour by August. No source gives US-specific waiting times or cancellations, so the claim is unmeasured.
Is the American tourism boom in Portugal over?
The evidence does not show it. US nights are up 3.4% from January to July, first-half receipts rose about 8%, and August rebounded. The next tests are INE's September flash around 30 October and Banco de Portugal's third-quarter receipts by market.