It's simple to cancel a flight with Frontier Airlines. It's possible to do it both online and offline. Visit the airline's official website to obtain the online flight cancellation. They also provide all of the services at the airline's headquarters for those who like to do things the old-fashioned way. In addition, Frontier airline has a customer service staff that is only a phone call away. You may pick up the phone and call their customer service hotline to speak with a live airline representative.

See at: Frontier Airlines Cancellation Policy