Airports by US state
Every US airport in the OpenFlights dataset is assigned to its nearest state by geographic centroid, giving a complete state-by-state directory. Use this index to compare states, then click through to a state page for the full airport list.
The United States runs the densest commercial air network on earth. The system is anchored by a small number of fortress hubs and threaded out through hundreds of regional fields, many of which exist mainly to feed the nearest big airline gateway. Coverage varies wildly by state. Alaska on its own has more airports than several European countries combined, while some small mid-Atlantic states have only a handful of commercial fields and lean on their neighbours for long-haul service.
Each state page below lists the airports nearest to that state's geographic centroid. Since state borders rarely follow neat geographic lines, a few small airports close to a border get filed under a neighbouring state. When in doubt, check both sides.
Browse all US states
What counts as an airport here
The dataset includes any airfield with an assigned three-letter IATA code, which covers commercial airline service, joint civil-military fields, and many smaller airports used by regional feeder carriers. It does not include the much larger universe of small general-aviation airfields that have only an FAA local identifier. The state-by-state counts therefore reflect commercial reach more than total runway count.