You can easily cancel your Allegiant airlines ticket by clicking on Manage booking option and process for refund.

There are 3 types of baggage which Allegiant airlines offers to their customers ie One Personal item which is free of charge ( a purse or a small backpack which can be kept beneath your seat ), One Carry-on baggage fees applies for this one ( carry-on baggage which doesn’t exceed to compartment size ), Checked baggage fees applies.

Yes Allegiant airlines provide full refund if you cancel your ticket within 24 hours of the booking but your departure date shall be one week from the booking date

Yes you can change prior to 01 hour before your flight departure if you have purchased your flight including Trip Flex. Trip Flex offers you complete flexibility to cancel or change your flight with no fees.

Yes you can change your flight if weather disruption is there before one week of the departure date at no additional cost.