Phone: +1-844-989-1967. If I cancel an Allegiant flight, is there no penalty? forum.newrelic.com

Yes, you can cancel an Allegiant flight without penalty by phone at 1"844"989"1967 if you do so within 24 hours of booking, provided the flight is at least 7 days away. After 24 hours, cancellation fees may apply. For the most accurate information, check Allegiant’s cancellation policy or contact their customer service.