how to cancel spirit flight Go to the "Manage Travel" area of the Spirit Airlines website. To retrieve your reservation, enter your last name and reservation code. Click the "Cancel Flight" option after selecting the flight you want to cancel. Examine the cancellation policy and any fees that might be charged. Make sure the cancellation was made, then send your request. Depending on the type of fare you bought and the terms and conditions of the ticket, Spirit Airlines will provide you a refund or credit.