There are many reasons why airports can be busy. Some cater to a huge number of passengers, others have hundreds of flights taking off and landing every day. So, if you’re asking what is the busiest airport in the world, it is contingent upon what you mean by “busiest.”
As for total passengers, the answer for 2026 is Hartsfield-Jackson Atlanta International Airport (ATL), Georgia, USA. According to the latest Airports Council International (ACI) World data, Atlanta handled more than 106.3 million passengers in 2025, keeping its position at the top of the global passenger rankings.
Which airport is the busiest in the world right now?
As of 2026, the latest full-year statistics available, Hartsfield-Jackson Atlanta International Airport is now the world’s busiest airport in total passengers. Atlanta served 106,302,208 passengers in 2025. Dubai International Airport followed with about 95.2 million passengers, while Tokyo Haneda Airport handled about 91.7 million.
That doesn’t mean Atlanta necessarily has the most flights or travelers coming in from abroad. Different airport rankings use different measurements, which is why you may see other airports described as the world’s busiest.
Why Is Atlanta Airport So Crowded?
Atlanta’s busyness is in part due to its large domestic flight network. The airport also is a big Delta Air Lines hub, meaning a lot of passengers are connecting between other cities through Atlanta.
For instance, a traveler flying from one part of the United States to another may connect through ATL, rather than having ATL be the origin or destination of their trip. When millions of passengers make connections like this throughout the year, the numbers add up quickly. Location is also a plus for Atlanta. It is within a large U.S. population and business region with links to destinations across the country and around the world.
How many passengers does the busiest airport in the world handle?
Atlanta’s passenger total in 2025 was roughly 106.3 million. ACI’s passenger figures count people getting on and off flights, with passengers in transit counted once. To put that number into perspective, that’s more than 290,000 passenger movements on an average day.
The airport’s passenger total was slightly lower than in 2024, but it still remained ahead of the other airports in the global ranking.
Top 5 Busiest Airports in the World
If you’re researching the busiest airports in the world, these were the top five by total passenger traffic in the latest ACI World data:
| Rank | Airport | Code | 2025 Passengers |
| 1 | Atlanta International Airport | ATL | 106.3 million |
| 2 | Dubai International Airport | DXB | 95.2 million |
| 3 | Tokyo Haneda Airport | HND | 91.7 million |
| 4 | Dallas/Fort Worth International Airport | DFW | 85.7 million |
| 5 | Shanghai Pudong International Airport | PVG | 85.0 million |
These figures are from ACI World’s 2025 airport traffic data published in 2026.
Is Dubai the Busiest Airport in the World?
This is where airport rankings can get a little confusing. Dubai International Airport is not the world’s number one airport for total passenger traffic but it is the world’s busiest airport in international passenger traffic. Dubai handled about 95.2 million international passengers in 2025.
That makes sense considering Dubai’s role as a major connecting point between Europe, Asia, Africa, and the Middle East. So when someone says Dubai is the world’s busiest international airport, they are talking about international passenger traffic, not total passenger traffic.
Which Airport Has The Most Flights?
And if you’re thinking about the number of takeoffs and landings, not passengers, the answer is different again. The world’s busiest airport by aircraft movements in 2025 was Chicago O’Hare International Airport (ORD), with 857,392 takeoffs and landings. Atlanta was second with 807,625 aircraft movements. This is why it’s important to look at the measurement behind a “busiest airport” claim. An airport can have more passengers without having the most aircraft movements, particularly when larger aircraft and connecting passengers are involved.
Why are airport rankings different?
Airport traffic is measured in different ways .
The other is the other one.
- Atlanta leads in total passenger traffic.
- In Dubai is the first in international passenger traffic.
- Aircraft movements at Chicago O’Hare ranks first.
- Air cargo at Hong Kong International Airport ranks first.
So when you’re searching what is the busiest airport in the world right now, it’s useful to check what type of traffic the source is measuring.
What Makes a Major Airport So Busy?
A busy airport usually has several things working together. A large local population helps, but it’s only part of the story. That can make a big difference because at an airline hub, passengers from many different cities connect at the same airport. A strong international route network can also bring in large numbers of travelers from overseas.
“Airport capacity, airline schedules, geography, tourism, business travel, and how many passengers are connecting all make a difference.” Atlanta is a good example, as it has a huge US domestic network and Delta’s hub operation.
Atlanta still the busiest airport in 2026?
Yes, Atlanta remains number one in 2026, the last full year of available passenger data. ACI World confirmed the final 2025 rankings in July 2026. Atlanta recorded 106.3 million passengers, while Dubai had 95.2 million and Tokyo Haneda had 91.7 million.
The distance between Atlanta and the airports behind it, meanwhile, is something to watch. Both Dubai and Tokyo saw passenger increases in 2025 while Atlanta saw a 1.6% decrease in passenger traffic. Airlines’ schedule changes, changes in passenger demand and airport expansions can change the rankings in the future.
Summary
So, what is the world’s busiest airport 2026? It’s the Hartsfield-Jackson Atlanta International Airport, or ATL, by total passengers arriving and departing. In 2025 the airport handled more than 106 million passengers, and remains the number one airport in the world.
But there’s a little more to the story. Dubai leads the world in international passenger traffic, but Chicago O’Hare had the most aircraft movements in 2025. In other words, the answer to what is the busiest airport in the world right now depends on what you’re counting. For total passengers, Atlanta currently leads the way.
If you’re flying with Delta, you can also check our Delta Airlines Customer Service guide for help with bookings, flight changes, baggage, and other travel questions.
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