How to Cancel an Allegiant Air Flight?
To cancel an Allegiant Air flight, log into your reservation on the site or app, select cancel, and follow prompts. With Trip Flex, get credit minus $8 fee. Without, lose the fare. For "how to cancel an Allegiant Air flight," do it 1 hour before with Flex.
Call 844-734-0813 if issues.
Confirm via email. For "how to cancel an Allegiant Air flight," online is fastest.
Contact 844-734-0813 for assistance.
