Does the ADA cover air transportation?

Discrimination by air carriers in areas other than employment is not covered by the ADA but rather by the Air Carrier Access Act (49 U.S.C. 1374 (c)).

 See Passengers with Disabilities – About the Air Carriers Access Act

Source: U. S. Department of Transportation

Link: https://www.transportation.gov/airconsumer/passengers-disabilities  and Air Carriers Access Act

Source:  Southwest ADA Center

http://www.southwestada.org/html/guide_to/acaa.html