List of the busiest airports in the United States

These are lists of the busiest airports in the United States, based on various ranking criteria.

The FAA uses passenger boarding for a half calendar year to determine Airport Improvement Program (AIP) entitlements.

The term "hub" is used by the FAA to identify busy commercial service airports.

Large hubs are the airports that each account for at least one percent of total U.S. passenger enplanements.

[1] Listed according to data compiled by the Federal Aviation Administration for the United States and ranked according to total cargo throughput in pounds during 2017.