Dubai International Airport (DXB) is expected to be the busiest airport in February 2026 in the world by the number of available seats. However, this does not mean that Dubai will be the busiest airport this year, or that it will even serve the most passengers in February 2026. Indeed, just because flights are arriving carrying a certain number of seats doesn’t mean passengers are in those seats. These are some of the reasons why there may be conflicting headlines claiming Atlanta is the world’s busiest airport.