The Busiest Airports in the World in 2026, Ranked by Passengers
The busiest airport in the world is Hartsfield-Jackson Atlanta International Airport (ATL), which handled 106.3 million passengers in 2025 — more than any other airport on Earth, and a title it has held for years. Atlanta leads a global top 10 that moved record numbers of travellers as worldwide air traffic hit an all-time high of 9.8 billion passengers in 2025.
“Busiest” always means passenger traffic — the number of travellers passing through — which is different from the biggest airports by land area (where Saudi Arabia’s King Fahd leads). Below are the busiest airports in the world ranked by total passengers, using the latest full-year figures from Airports Council International (ACI World).
Top 10 Busiest Airports in the World (2025 Passenger Traffic)
Busiest International Airports in the World
| Rank | Airport | Country | Passengers (2025) |
|---|---|---|---|
| 1 | Hartsfield-Jackson Atlanta (ATL) | USA | 106.3 million |
| 2 | Dubai International (DXB) | UAE | 95.2 million |
| 3 | Tokyo Haneda (HND) | Japan | 91.7 million |
| 4 | Dallas/Fort Worth (DFW) | USA | 85.7 million |
| 5 | Shanghai Pudong (PVG) | China | ~85 million |
| 6 | Chicago O’Hare (ORD) | USA | 84.8 million |
| 7 | London Heathrow (LHR) | UK | 84.5 million |
| 8 | Istanbul Airport (IST) | Turkey | 84.4 million |
| 9 | Guangzhou Baiyun (CAN) | China | 83.6 million |
| 10 | Denver International (DEN) | USA | 82.4 million |
Source: ACI World, 2025 preliminary global rankings (released April 2026). The United States has four airports in the top 10 — more than any other country.
Hartsfield-Jackson Atlanta (USA) stays No.1 thanks to its role as Delta Air Lines’ primary hub and its position within a two-hour flight of most of the US population — making it the ultimate connecting airport. Dubai International (UAE) ranks second overall and is the world’s busiest for international travellers. Tokyo Haneda (Japan) climbed to third, reflecting the strong rebound of Asia-Pacific travel, while Shanghai Pudong made the biggest jump in the top 10.
For the US picture, see our guide to the biggest airports in the USA; for the UK, the 6 biggest airports in London.
Rank by international passengers only and the order changes. Dubai dominates, and European and Asian hubs rise:
- Dubai International (DXB) — the world’s busiest international airport
- London Heathrow (LHR) — Europe’s busiest
- Incheon International (ICN), Seoul — one of Asia’s leading global gateways
Atlanta drops down this particular list because so much of its traffic is domestic connecting flights.
Busiest Airports by Aircraft Movements
Counting take-offs and landings rather than passengers produces yet another ranking, led by US mega-hubs:
- Chicago O’Hare (ORD)
- Hartsfield-Jackson Atlanta (ATL)
- Dallas/Fort Worth (DFW)
Busiest Airport by Region
- Busiest airport in the USA: Hartsfield-Jackson Atlanta (106.3M) — full list in our USA airports guide.
- Busiest airport in Europe: London Heathrow (84.5M) — see Europe’s biggest airports.
- Busiest airport in Asia: Tokyo Haneda (91.7M).
- Busiest airport in the Middle East: Dubai International (95.2M).
Busiest vs Biggest: What's the Difference?
The two rankings measure completely different things:
- Busiest = passengers. Winner: Atlanta (106.3 million).
- Biggest = land area. Winner: King Fahd International, Saudi Arabia (776 km²).
Atlanta moves the most people but sits on a relatively small site, while King Fahd’s enormous footprint sees comparatively few passengers. See the full size-based ranking in our guide to the Biggest Airports in the world.
Frequently Asked Questions
What is the busiest airport in the world?
Hartsfield-Jackson Atlanta International Airport (ATL) in the USA is the busiest airport in the world, handling 106.3 million passengers in 2025 — more than any other airport.
What is the busiest airport in the world in 2026?
Based on the latest full-year data (2025), Atlanta remains the busiest, followed by Dubai (95.2 million) and Tokyo Haneda (91.7 million).
What is the busiest international airport in the world?
Dubai International Airport (DXB) is the busiest airport in the world for international passengers, ahead of London Heathrow and Seoul Incheon.
Why is Atlanta the busiest airport in the world?
Atlanta is the busiest because it is Delta Air Lines’ main hub and sits within a short flight of most of the US population, making it the country’s top connecting airport for domestic travel.
What is the busiest airport in the USA?
Hartsfield-Jackson Atlanta is the busiest airport in the USA, followed by Dallas/Fort Worth and Chicago O’Hare.
How many passengers fly each year worldwide?
Global air travel reached a record 9.8 billion passengers in 2025, up 3.6% from 2024.
Final Boarding Call
Year after year, Atlanta holds the crown as the busiest airport in the world, but the chasing pack — Dubai, Tokyo Haneda, Dallas/Fort Worth, and fast-rising Chinese hubs — shows just how competitive global aviation has become. Whether measured by total passengers, international traffic, or aircraft movements, these are the airports keeping the world moving.
Explore more in our guide to the biggest airports by country.