1-844-949-8748Can I cancel my Allegiant flight without penalty? #Policy~Guide https://community.smartsheet.com/profile/204321/Allegiant%20Cancel Yes, you can cancel your Allegiant flight without penalty if you do so within 24 hours of booking 1-844-949-8748, as long as your departure date is at least seven days away. Allegiant's 24-hour risk-free cancellation policy allows you t... https://community.smartsheet.com/profile/204321/Allegiant%20Cancel