The highest commercial airport in the world is Daocheng Yading Airport in Sichuan, China, at 4,411 m above sea level. The next three — Qamdo Bamda (4,334 m), Kangding (4,280 m) and Ngari Gunsa (4,274 m) — are also on or beside the Tibetan Plateau, and the highest outside China is El Alto International Airport serving La Paz, Bolivia, at about 4,061 m.
Every airport above 4,000 m that handles scheduled flights is in western China or the Bolivian Andes. At those heights the air holds only around 60% of the oxygen it holds at sea level, which affects aircraft engines, wings and brakes as much as it affects passengers. These airports exist because the regions they serve are high plateaus with few alternatives: the nearest lowland airport may be days away by road.
Daocheng Yading: 4,411 Metres on the Haizi Plateau
Daocheng Yading Airport opened in September 2013 on the Haizi Shan plateau in the Garzê Tibetan Autonomous Prefecture of western Sichuan, taking the "world's highest" title from Qamdo Bamda. Its runway is about 4,200 m long, and its round terminal has made it one of the most photographed airports in China. It was built mainly for tourism: the Yading Nature Reserve, a few hours' drive to the south, protects three sacred snow peaks and alpine lakes that had been reachable only by a long mountain road from Chengdu.
Arriving passengers step from a pressurised cabin straight into air equivalent to a high Alpine summit. The terminal keeps oxygen available, staff are trained to watch for altitude sickness, and many visitors feel headaches or breathlessness within minutes. Travel advice generally recommends moving slowly, drinking water and descending if symptoms grow worse.
The Top Ten by Elevation
Qamdo Bamda in eastern Tibet held the record from its opening in the mid-1990s until 2013. Because thin air demands long take-off runs, its runway is about 5,500 m long, among the longest paved public runways in the world. Kangding, opened in 2008, serves a town on the old tea-horse trade route into Tibet. Ngari Gunsa, opened in 2010 in far western Tibet, is used by pilgrims heading to Mount Kailash and Lake Manasarovar, and Garzê Gesar, opened in 2019, added another 4,000-metre airport in western Sichuan.
Why China Builds So High
The Tibetan Plateau averages more than 4,000 m in elevation and covers around 2.5 million km², so in much of Tibet, Qinghai and western Sichuan there is simply no low ground to build on. Roads across the plateau cross passes above 4,500 m and are often closed by landslides or snow; before many of these airports opened, the journey from a prefecture town to Chengdu or Lhasa could take two or three days.
Since the 2000s, China has built airports across the plateau to support tourism, regional development and administration, and several also have military significance near disputed borders with India. Building them is difficult: workers face altitude sickness, permafrost and a short construction season, and some runways had to be laid on artificially levelled mountaintops. Airlines such as Tibet Airlines operate specially equipped Airbus A319s, and approaches are flown with satellite-guided Required Navigation Performance procedures, first introduced in China at Nyingchi in Tibet, that let aircraft follow curved paths between mountains.
What Thin Air Does to an Aircraft and Its Passengers
An airport at 4,400 m sits where air pressure is roughly 58–60% of the sea-level value, and the air is correspondingly less dense. That has several effects:
- Less lift. Wings generate lift from the mass of air flowing over them, so a plane must reach a higher true speed before it can take off and must land faster. That needs longer runways and puts more strain on tyres and brakes.
- Less thrust. Jet engines take in less air per second, reducing the power available for take-off and climb — critical if an engine fails just after take-off among nearby peaks.
- Weight limits. Airlines often have to carry fewer passengers, less cargo or less fuel, especially on warm afternoons when the "density altitude" is even higher than the runway's actual elevation.
- Oxygen systems. Passenger oxygen masks are normally set to drop automatically if the cabin pressure falls to the equivalent of about 4,300 m. Aircraft serving the highest airports need special modifications so that opening the doors on the ground does not trigger them.
For passengers, the main risk is acute mountain sickness. Flying straight to 4,000 m without acclimatisation is harder on the body than walking up gradually, which is why doctors advise travellers with heart or lung conditions to seek advice before flying into these airports.
Flying In: What Travellers Should Know
Most flights to the Chinese high-altitude airports leave from Chengdu, Chongqing or Lhasa and take one to two hours. Schedules are thin, often one or two flights a day, and weather causes frequent delays: snow and wind in winter, and towering monsoon clouds over the mountains on summer afternoons, which is why many departures are timed for early morning.
Paperwork differs by province. Daocheng Yading, Kangding and Garzê Gesar are in Sichuan, so foreign visitors need only a normal Chinese visa. Lhasa, Qamdo Bamda, Shigatse and Ngari Gunsa are in the Tibet Autonomous Region, where foreigners also need a Tibet Travel Permit arranged through an approved tour operator before boarding, and Ngari requires further permits for the border region.
Because the journey skips the gradual climb that protects trekkers, a common approach is to spend the first day resting, avoid alcohol and heavy exertion, and plan a lower first night where possible — visitors to Yading often sleep in Daocheng town, several hundred metres below the airport. Small cans of oxygen are sold in shops across western Sichuan and Tibet, though they offer only brief relief, and travellers who are considering preventive medicine are advised to consult a doctor before the trip.
Aircraft can, of course, go much higher than any airport. In May 2005, French test pilot Didier Delsalle landed a Eurocopter AS350 B3 helicopter on the summit of Mount Everest, at 8,849 m, which remains the highest landing ever made by any aircraft.
El Alto, Juliaca and Leh: The Contenders Outside China
El Alto International Airport sits on the Altiplano above La Paz, about 400 m higher than the city centre in its canyon below. For decades it was described as the world's highest international airport, and it remains one of the most important high-altitude airports anywhere, with a runway of around 4,000 m. The city of El Alto that grew around it has become one of Bolivia's largest.
Inca Manco Cápac Airport at Juliaca, Peru, at 3,826 m, serves the city of Puno and visitors to Lake Titicaca, which lies at about 3,812 m — one of the few airports in the world almost at the level of a large nearby lake.
Kushok Bakula Rimpochee Airport at Leh, in India's Ladakh, sits at about 3,256 m in the Indus Valley. Strong afternoon winds funnel through the valley, so most flights operate in the morning. Even higher, India's military Daulat Beg Oldi airstrip, at around 5,065 m near the Karakoram Pass, is the highest landing ground in the world, but it is not a civilian airport.
Lukla and Paro: Famous, Feared, but Not Very High
Two of the world's best-known mountain airports are often assumed to be among the highest, but neither is close:
- Tenzing-Hillary Airport, Lukla (Nepal) — about 2,845 m. Its runway is only around 527 m long with a gradient of nearly 12%, ending at a mountainside. The challenge is not thin air but a short, sloping runway, no room for a go-around and fast-changing weather.
- Paro Airport (Bhutan) — about 2,235 m. Approaches wind through a narrow valley between ridges, and only a small number of specially trained pilots are certified to land there.
The difference shows that "highest" and "most difficult" are separate records. Daocheng Yading has a long, straight runway on an open plateau; Lukla's difficulty comes almost entirely from its terrain. For perspective in North America, Lake County Airport in Leadville, Colorado, the highest public airport on that continent, sits at about 3,026 m — lower than every airport in the top ten.
For more on runways where terrain, not altitude, is the problem, see our most dangerous airports in the world, or the most remote airports list. To understand the high ground that makes these airports necessary, explore the Tibetan Plateau and Bolivia's Altiplano.