Yes, Frontier Airlines does have a 24-hour cancellation policy, which allows passengers to cancel their booking within 24 hours of purchase for a full refund, [+𝟏-𝟖𝟑𝟑_𝟒𝟑𝟗-𝟐𝟔𝟕𝟎 (USA) or +𝟏-𝟖𝟑𝟑_𝟒𝟑𝟗-𝟐𝟔𝟕𝟎 (UK) ]provided that the booking was made at least seven days before the scheduled departure.