1. King Fahd International Airport (KSA): 78,000 hectares (193,000 acres)

2. Denver International Airport (DEN): 13,571 hectares (33,526 acres)

3. Dallas-Fort Worth International Airport (DFW): 6,963 hectares (17,202 acres)

4. Orlando International Airport (MCO): 5,383 hectares (13,302 acres)

5. Phoenix Sky Harbor International Airport (PHX): 4,440 hectares (10,972 acres)

6. Hartsfield-Jackson Atlanta International Airport (ATL): 4,355 hectares (10,762 acres)

7. Los Angeles International Airport (LAX): 3,958 hectares (9,782 acres)