Hey, I am Elina smith. Did you know Allegiant Airlines Cancellation Policy With flexibility in mind, that gives passengers the ability to change their reservations as necessary. In order to protect their travel investment, passengers have the option to cancel and obtain a credit for future trips. The Trip Flex add-on offers additional convenience and peace of mind by allowing adjustments without incurring penalties. Allegiant is a great option for people looking for flexibility and help when unforeseen changes occur in their travel plans because of its customer-friendly approach.