Allegiant 24-𝓗𝓸𝓾𝓻 𝓒𝓪𝓷𝓬𝓮𝓵𝓵𝓪𝓽𝓲𝓸𝓷 𝓡𝓾𝓵𝓮 𝟙(𝟠𝟛𝟛) 𝟜𝟞𝟘-𝟙𝟠𝟛𝟠 (24 🅷🅾🆄🆁 🆁🅴🅵🆄🅽🅳) provides within customers may cancel their flight reservation or make changes without any charge. This feeless cancellation option is essential if you need to change plans soon after purchasing a ticket. Importantly, the Allegiant 24-hour refund policy 𝟙(𝟠𝟛𝟛) 𝟜𝟞𝟘-𝟙𝟠𝟛𝟠 (24 🅷🅾🆄🆁 🆁🅴🅵🆄🅽🅳)can only be applied seven days or 168 hours before the flight.