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 full calendar year to determine AIP entitlements. The term hub is used by the FAA to identify very busy commercial service airports. For instance, large hubs are those airports that each account for at least one percent of total U.S. passenger enplanements. Medium hubs are defined as airports that each account for between 0.25 percent and one percent of the total passenger enplanements.

In Calendar year 2014 (preliminary FAA data) there were 30 Large Hubs and 30 Medium Hubs.

Listed according to data compiled by Airports Council International North America, and ranked according to total passengers during 2014.

This list has the same 99 airports as the FAA list, but the order is slightly different. The FAA ranks by passengers boarding. ACI ranks by sum of boarding, disembarking, and flying through without leaving airplane. The statistics are slightly more than twice as high.

Listed according to data compiled by the Office of Aviation Analysis, part of the United States Department of Transportation, and ranked according to total international passengers during 2014.

Listed according to data compiled by the Federal Aviation Administration for the United States, and ranked according to total cargo throughput in pounds during 2015.

United States Department of Transportation:

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