Frontier Airlines offers a full refund if you cancel within 24 hours of booking, as long as the ticket was purchased at least 7 days before departure. For more information, contact customer care at {𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗 } (US) or 🟢🟢 {𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗 } (UK).Summary. Frontier Airlines allows cancellations with full refunds within 24 hours of booking, provided your departure is at least two days away +𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗 or 𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗 (UK). For non-refundable tickets, you can make changes or cancel without a fee, but you will receive a travel credit instead of a refund.$99 Frontier Airlines cancellation fees can be confirmed by calling 𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗(US) OR +𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗(UK). They typically charge $99 for cancellation made 24 hours after booking,but if you cancel within the first 24 hours and at least 7 days before departure,you may avoid any fees.To avoid Frontier's cancellation fee +𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗 (𝕌𝕊 - 𝕆𝕋𝔸) or +𝟏'𝟖𝟓𝟓'𝟓𝟓𝟎'𝟎𝟗𝟏𝟗 (𝕌𝕊 - 𝕆𝕋𝔸), cancel within 24 hours or booking or ensure your flight is at least 7 days away.Canceling a nonrefundable fare will result in an e-credit for the full amount paid (minus any cancellation fees, depending on fare type and route). However, if you cancel a refundable ticket, you'll get the amount paid refunded back to your original form of payment.