Can you cancel Allegiant flight 24 hours? +̳1̳ ̳8̳8̳8̳^̳6̳7̳4̳^̳2̳2̳8̳8̳ Yes, you can cancel your Allegiant flight without incurring a penalty if you do so within 24 hours of booking +1 888-674-2288 , provided your flight departure is at least one week away.
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