The Delta Air Lines hub retains the title as four new airports that were not included in 2019 join the top ten.
Author: Guest authors
- Air Serbia
- aircraft
- Alaska Airlines
- Belgrade
- Boise Airport
- Breeze airways
- China
- Commercial Aviation
- flights
- flynas
- Islamabad
- ITA Airways
- New York JFK Airport
- Orlando International Airport
- Pakistan International Airlines
- Paris Charles De Gaulle Airport
- Rome Fiumicino Airport
- Routes
- Ryanair
- Sacramento
- Shanghai Pudong International Airport
- Tampa International Airport
- United States