Lisbon Humberto Delgado Airport 2026: Growth at the Capacity Ceiling, 15.7% More Passengers on 3.2% More Flights

Where the ceiling sits: 38 movements an hour

Lisbon is a fully coordinated airport. Every arrival and departure needs a slot, and since 4 March 2020 the slots have been allocated by NAV Portugal, the air navigation company, acting as independent coordinator after pressure from the European Commission. The declared rate is 38 movements an hour, a figure repeated by ANAC in Parliament in January 2026 and by ECO in June 2026. NAV's published coordination parameters, including any split between arrivals and departures, were not found in accessible form.

The 38 is a runway-system figure. Runway 02/20 is the only one in use. Since 2017 the crosswind runway 17/35 has been closed and two rapid-exit taxiways were added in 2020, according to ZERO's account in DN. The airspace above Lisbon is no longer the limit. NAV's terminal airspace handled 44 movements an hour in 2019, a redesign approved that year targeted 72, and a NAV memorandum presented by the infrastructure minister in May 2024 said the Lisbon block could reach 52. Those figures cover airspace shared with Montijo and Tires. They describe how many aircraft the sky can sequence, not how many the runway, taxiways, stands and terminal can turn round.

There is one loose end in the history. ECO reported in November 2017 that declared capacity was then 40 movements an hour, with about 38 used on average. We found no record of a later reduction to 38 and no correction, so the figure may have been misreported. The 2010–2016 declared rates are not published anywhere we could reach.

Averages hide the peaks. The environmental group ZERO analysed flight-tracking data for 1 June to 22 August 2025 and found that 28% of hours between 06:00 and midnight carried more than 38 movements, 18% more than 40, and 4.3% more than 42. The busiest hour reached 45. On 3 August 2025 the airport handled 699 flights. These are an NGO's counts of actual movements, which can exceed the scheduled slot rate when delayed flights bunch, and neither ANAC nor NAV has published a comparable hourly series.

Growth by bigger planes

Lisbon's flight count reached 216,017 in 2018. Seven years later it was 223,586, an increase of about 7,600. Over the same period passengers went from 29.0 million to 36.1 million. The table below shows the turn: in the 2010s flights and passengers rose together; after 2018 the line for flights goes flat and passengers per flight climb from 134.5 to 161.4.

Part of the extra load is longer-haul flying. VINCI described 2025 growth at Lisbon as driven by long-haul routes to Asia and Latin America, and widebodies carry more people per slot. Part is fuller narrowbodies: easyJet reported a 92% load factor across Portugal in 2025. No official seat or load-factor series exists for Lisbon, so the split between larger aircraft and fuller cabins cannot be measured from public data.

The ceiling also flattens Lisbon's seasons. In 2025 the busiest month (August, 3,493,203 passengers) was only 1.48 times the quietest (February, 2,358,318). Porto's ratio was 1.86 and Faro's 4.37. Flights at Lisbon varied even less, by 1.32 times between August and February. In summer the airport cannot add many flights, so extra demand goes into fuller aircraft and, as the punctuality data show, into delay.

Eurostat's 2025 split shows what the slots carry: 10.9% of passengers were domestic, 49.8% travelled to or from other EU countries and 39.3% to or from outside the EU, which includes the UK, Switzerland, Brazil and the United States. No public source gives Lisbon's transfer share or a true long-haul share.

2026: the year growth stopped

Lisbon began 2026 well. Eurostat recorded 2,495,309 passengers in January (+3.5%) and 2,433,242 in February (+3.2%), records for both months. INE's monthly flash releases, reported by Lusa and the business press, then show the cumulative rate sliding month by month: +3.1% in the first quarter, +2.6% to April, +2.1% to May, +1.3% to June and +1.0% to July.

Movements tell the same story more sharply. VINCI reported 109,728 commercial movements at Lisbon in the first half of 2026, down 0.2%, and 58,376 in the second quarter, down 0.8%. Passengers per movement were 159.0 in the half. With flights flat or falling, Lisbon's growth now depends on how much fuller the existing schedule can get, and easyJet's 92% load factor across Portugal in 2025 suggests little room.

The rest of the country did not stall. National passengers rose 2.4% in January–July while Porto grew 7.1%. Lisbon's share of Portugal's air passengers fell from 51.7% in 2019 to 48.9% in 2025 (Eurostat), and stood at 49.4% in the first half of 2026. Our Porto tourism statistics cover the airport that has taken most of the growth Lisbon could not.

Who gets a slot

For the IATA summer season 2026, airlines asked NAV for 164,000 slots at Lisbon and received 147,000, NAV's president Pedro Ângelo told Lusa in March 2026. RTP reported that as 12% of requests unmet; the arithmetic gives 10.4%. A further 20,000 requests sat on a waiting list for more commercially viable times, which probably overlaps with the shortfall. Ângelo said Lisbon could not offer premium hours to many operators and that Middle Eastern carriers had shown interest but could not get workable times.

One airline's experience shows the scale. Brazil's GOL asked for 584 slots at Lisbon for summer 2026 and received 84, or 14.4% (derived), according to Passageiro de Primeira. At Porto it received all 292 it requested. During the Web Summit in November 2025 the government said capacity was exhausted at certain hours; of more than 100 private-flight requests, 95 were approved and 7 refused.

TAP holds the largest block. Under its 2021 EU restructuring plan TAP was expected to keep 45–55% of Lisbon's capacity and had to release 18 daily slots, about nine rotations, to easyJet from October 2022. Our earlier figure of 48% of allocated slots, attributed to NAV via a trade publication, could not be re-located for this article and should be treated as unconfirmed. Who buys into TAP will shape how those slots are used; our TAP privatisation explainer covers the two bidders and their hub plans.

The low-cost carriers have moved their growth elsewhere. Ryanair said in September 2025 that Lisbon would have no growth because of excessive charges and lack of capacity, and its summer 2026 schedule put new aircraft and routes in Porto and Faro instead. Michael O'Leary called Lisbon artificially limited and claimed it could handle far more traffic. The infrastructure minister, Miguel Pinto Luz, replied that the airport was an urban infrastructure operating at its maximum. easyJet's Portugal chief, José Lopes, sided with neither: the airport was at its maximum level, he said in January 2026, and operations should become more reliable before capacity is raised.

Last in Europe for departures

A runway running near its limit has little slack to absorb a late arrival, a storm or a strike, and delays spread through the rest of the day. ACI EUROPE's punctuality reports, which measure the share of flights within 15 minutes of schedule at large European airports, put Lisbon at the bottom for departures in both full years and in most recent months.

The pattern is specific to departures. Arrivals at Lisbon were 65.9% punctual in 2025, below the network's 76.0% but not the worst. That fits a congested airport: inbound aircraft arrive close to time, then wait for a stand, a ground crew or a departure slot, and the delay carries into the next rotation. Eurocontrol's monthly reports describe the same thing in words, citing aerodrome capacity regulations in July 2025 and reactionary delays in May and June 2026.

Air traffic control is not the main culprit. NAV, through CANSO, reported that en-route delay in summer 2025 fell 71% across its airspace and that NAV-attributable delay at Lisbon fell 54.8% while traffic there rose 0.8%. Eurocontrol did cite en-route restrictions in May 2026, and the general strike of 3 June 2026 hit that month. The persistent part of the problem sits on the ground.

Border queues added a second layer after the EU's Entry/Exit System began on 12 October 2025. An airline association said waits at Lisbon reached up to seven hours in December 2025 before an emergency suspension and extra staff brought them down; PSP data for 31 May 2026 showed maximum arrival waits of 32 minutes at Lisbon against 55 at Porto. Queue times are not published as a series.

How Lisbon compares

Lisbon is often called Europe's busiest single-runway airport. It is not. Gatwick carried 42.8 million passengers in 2025 on one runway, and CAPA's ranking of single-runway airports puts Lisbon third in the world behind Mumbai and Gatwick. What sets Lisbon apart is how low its declared rate is. Gatwick schedules up to 55 movements an hour, Stansted declares 50 at its winter peak and Dublin 56 on two runways. Lisbon declares 38.

Divide annual passengers by the declared hourly rate and Lisbon comes out at about 950,700 passengers per hourly slot in 2025, 22% above Gatwick's 777,700, 29% above Barcelona and 39% above Madrid (derived). Lisbon's passengers per movement, 159, are in line with Madrid and Barcelona and below Gatwick's 165. The difference is that Lisbon achieves those loads from far fewer hourly slots.

Other airports have caps too, and they have been contested in court. Schiphol's movement limit of 478,000 for 2026 is under legal challenge; Dublin's 32 million passenger planning cap from 2007 is suspended pending a ruling by the EU Court of Justice, and Dublin carried more than 4 million passengers above it in 2025. Aena reported that Madrid ran at 97.4% and Barcelona at 104.5% of annual design capacity in 2025. Lisbon's constraint is physical rather than legal, which means only construction can lift it.

The expansion path: 40, 42, 45

The plan to stretch Humberto Delgado while the new airport is built rests on two Council of Ministers resolutions, RCM 201/2023 and RCM 67/2024. ANA delivered its expansion plan on 1 August 2025, describing all the investment needed to reach a maximum of 45 movements an hour, phased across runway, taxiways, aprons and terminal. Neither the cost nor the date of the 45 stage has been published.

The terminal works are already under way. ANA signed the main contract on 27 November 2024 with a consortium of Mota-Engil, VINCI Construction Grands Projets, Alves Ribeiro and HCI for €233 million: a 33,000 m² South Pier with 10 boarding bridges and 12 aircraft stands, a remodelled Central Pier and new bus gates, due in 2027. Observador describes the wider programme as a €300 million project; no breakdown reconciles the two. A €12 million renovation of the Terminal 2 Schengen area is complete.

The airside phases face more friction. APA, the environment agency, said in January 2026 that it wanted to see the whole master plan before assessing new runway-side works. The Public Prosecutor challenged the 2023 and 2024 resolutions and APA's January 2024 exemption from environmental assessment at the Supreme Administrative Court in January 2025, arguing that the last full assessment dates from 2006. Works have continued and we found no ruling. Lisbon's mayor, Carlos Moedas, has said he opposes 42 movements, which he described as a plane every 81 seconds over the city.

Even the full programme closes only part of the gap. At today's ratio of passengers to hourly slots, 45 movements would carry about 42.8 million passengers (derived), inside the government's 40–45 million range but only if loads keep rising to reach the top of it. The Luís de Camões airport, which ANA schedules for mid-2037, is the only plan that removes the ceiling; our new Lisbon airport tracker follows its cost, financing and dates.

Who pays for scarcity

Scarcity has a price, and the airport operator collects part of it. ANA, owned by VINCI since 2013, reported 2025 revenue of about €1.4 billion across its ten Portuguese airports and a record net profit of €599 million. RTP reported EBITDA of €951 million, a 68% margin; ANA's investor figures, used in our earlier articles, give €973.1 million. ANA does not publish revenue by airport. Gatwick, the nearest single-runway comparator, reported a 59.3% EBITDA margin in 2025 (derived from £671.6 million on £1,132.1 million).

Lisbon's regulated revenue per passenger was €14.49 in 2024. ANAC approved an average increase of 0.65% for 2026, and ANA has filed €14.80 for 2027. Like-for-like international comparisons are scarce. Dublin's regulator set €10.39 per passenger for 2026 and Aena's Spanish network average is €11.03; both are defined differently from Lisbon's cap, so the gaps of about 39% and 31% are indicative only. ANA's last published benchmark, from 2018, put Lisbon 9.3% below its peer median on turnaround costs.

The economic cost of the ceiling has been estimated mostly by interested parties. ANA's chief executive said in December 2022 that 730,000 seats would be turned away in summer 2023, worth about €20 million to ANA. An EY study for the Confederação do Turismo de Portugal in 2022 put the cost of delaying a new airport at about €7 billion if relief came in 2028 and €21.4 billion if the new airport opened in 2034, using lost frequencies multiplied by tourist spending. The confederation's loss counter showed €2.08 billion when the Alcochete decision was announced in May 2024. Its method has never been published in full. No independent study of passengers lost per year exists.

For the city's hotels the constraint now shows in occupancy. Our Lisbon tourism statistics found Grande Lisboa RevPAR down from €102.6 to €98.8 in January–July 2026 as occupancy fell 2.2 points. In June 2026 Grande Lisboa nights rose 2.3%, but residents accounted for most of it (+11.3%) while non-resident nights rose 0.5%. An airport that cannot add flights caps the number of foreign visitors who can arrive by air.

Ten claims tested

The airport generates confident numbers from every side: airlines lobbying for slots, the government defending its plan, environmental groups, the tourism confederation and the press. The panel below tests ten that circulate widely. Three trace to a confusion between airspace, runway and passenger capacity; two compress a seasonal figure into an annual one.

Our own earlier work needed correcting in places. The figure of 48% of Lisbon slots held by TAP could not be re-sourced. The night-flight fines we reported as €270,000, €8.8 million and €3.5 million for 2023–2025 are €266,200 and €8,721,600 in ANAC's figures as reproduced by ECO, with about €3.4 million for 2025. The 161,000 people exposed to daytime noise above 55 dB, which we derived from ANA's action plan, could not be confirmed this time. And the 2034 horizon for 45 movements an hour that appeared in our tracker notes has no published source.

Night flights, noise and risk

Night movements are where the ceiling meets the neighbours. A 2004 portaria limits Lisbon to 91 movements a week and 26 a night between 00:00 and 06:00. ANAC's fines for breaches rose from €52,400 in 2022 and €266,200 in 2023 to €8,721,600 in 2024, then fell to about €3.4 million in 2025, according to ECO and Observador. ANAC has not named the airlines. ANAC also told Parliament that night movements outside the rules reached 240 in June 2025, 388 in July and 242 in August, or 181, 338 and 198 after force-majeure exclusions.

A tighter regime has been announced and not delivered. The government said in November 2024 that slots would be banned between 01:00 and 05:00, and in March 2025 the Council of Ministers ordered ANAC to implement the ban together with limits on noisier aircraft between 23:00 and 07:00. ANAC cited the EU's balanced-approach procedure and gave no date. ZERO warned in November 2025 that the ban might not be in place for summer 2026, and we found no confirmation that it has taken effect. A ban would remove night capacity that the airport currently uses to absorb late running.

Exposure figures depend on who reads the noise action plan for 2024–2029. ZERO counts more than 370,000 people exposed and 60,000 above the legal night limit; ANA's insulation programme identifies 42,959 people as over-exposed, falling to 36,015 as newer aircraft enter service. The two use different thresholds. A parliamentary working group put the health cost of night noise at €206 million a year.

The airport's other risks are operational. A single runway leaves no fallback when it closes for works, an incident or weather, and the planned 2027 works will need to be phased around a schedule with almost no spare hours. Strikes have a large effect: the 25–28 July 2025 ground-handling strike and the 3 June 2026 general strike both appear in the punctuality record. Each disruption at a 93%-utilised airport takes longer to clear than at one with spare slots.

What this means for travelers, businesses and analysts

Travelers. Expect Lisbon to be busy and departures to run late, especially in summer; ZERO found the busiest hour was 19:00 to 20:00. Early-morning departures usually leave before knock-on delays build up. Build at least two hours into any same-day connection, more in July and August, and allow for border queues if you hold a non-EU passport. If your trip includes the north, flying into Porto is often easier, and an open-jaw ticket avoids backtracking. Our Lisbon travel guide covers getting from the airport into the city, and the Lisbon destination page covers where to stay.

Tourism businesses and investors. Lisbon's inbound air volume is now capped by infrastructure, not demand. Passenger growth of 1% a year is close to the realistic ceiling until the 40-movement phase arrives after 2027, and the 45-movement phase has no date. Plan Lisbon revenue on price and length of stay rather than arrivals; the RevPAR decline in 2026 shows that price has limits too. Watch four thresholds: the APA decision on the 38→40 environmental study, the start of works in 2027, any ruling on the Public Prosecutor's challenge, and the outcome of the TAP sale, which will decide how almost half the slots are used.

Journalists and analysts. Safe to cite: 38 movements an hour declared capacity; 93% average utilisation in 2023 (ANAC); 36,083,879 passengers and 223,586 commercial passenger flights in 2025 (Eurostat), or 36.126 million and 226,990 movements (ANA); passengers +15.7% and flights +3.2% since 2019; H1 2026 movements −0.2% (VINCI); 164,000 slots requested and 147,000 allocated for summer 2026 (NAV); departure punctuality 48.6% in 2025, lowest among large European airports (ACI EUROPE). Do not repeat: '100% full', 'Europe's busiest single-runway airport', '45 movements by 2028', '52 movements an hour' as a runway figure, '12% of slots refused' without the arithmetic, or any annual passengers-lost figure. The series finding this article adds: across Portugal's gateways, the airport with the most demand grew more slowly after 2019 than every gateway except Faro, and the limit is set by one hourly number.