How many airports are there in USA?

Over 19700

It is interesting to know that according to the 2011-2015 National Plan of Integrated Airport Systems (NPIAS), released by the U.S. Department of Transportation and the Federal Aviation Administration (FAA), there are over 19,700 airports in the U.S.  The main idea is that of these, 5,170 airports are open to the general public with 503 airports offering commercial service.  Needless to say, the busiest airports in the US are represented by Hartsfield-Jackson Atlanta International (ATL), Chicago O’Hare International (ORD), Los Angeles International (LAX), Dallas-Ft. Worth International (DFW), and Denver International (DEN) Airports.