The busiest airports in the US in 2025 by passenger volume are:
- Hartsfield-Jackson Atlanta International Airport (ATL) – around 50.9 million passengers
- Los Angeles International Airport (LAX) – about 40.9 million passengers
- Dallas/Fort Worth International Airport (DFW) – approximately 39.2 million passengers
- Denver International Airport (DEN) – roughly 37.8 million passengers
- Chicago O'Hare International Airport (ORD) – close to 35.8 million passengers
These airports lead the country in passenger traffic, with Atlanta being the busiest airport in the US and the world.