Frontier Airlines plane seen at Cancun International Airport. On Wednesday, December 08, 2021, in Cancun International Airport, Cancun, Quintana Roo, Mexico.The 1986 Air Carrier Access Act requires airlines to provide a wheelchair to passengers with disabilities at the airport. The problem: Many travelers are faking it, Frontier Airlines CEO Barry Biffle says."There is massive, rampant abuse of special services. There are people using wheelchair assistance who don't need it at all," Biffle said at a Wings C ...