Travel DOT warns airlines – again – to issue refunds for canceled flights after receiving 25,000 complaints May 12, 2020May 12, 2020 Dawn Gilbertson, USA TODAY Comments Off on DOT warns airlines – again – to issue refunds for canceled flights after receiving 25,000 complaints After receiving 25,000 complaints this spring, the Department of Transportation is warning airlines they must issue refunds for canceled flights.