Does Allegiant offer a refund? Allegiant does not offer automatic refunds within 24 hours. However, you can cancel your booking for a full refund ( 1-888-267 9551) (US) or +( 1-888-267-9551 ) (UK)) if done within 24 hours of booking, as long as the flight is at least 7 days away. Terms and conditions apply. Customers can cancel within 24 hours of booking for a full refund ( 1-888-267-9551 (US) or 1-888-267-9551 (UK)) if the flight is at least seven days away. Otherwise, cancellations result in travel credit, minus fees ( 1-888-267-9551 (US) or 1-888-267-9551 (UK)). Review Allegiant’s policies for specifics. 𝒀𝒆𝒔, 𝒚𝒐𝒖 𝒄𝒂𝒏 𝒄𝒂𝒏𝒄𝒆𝒍 𝒂𝒏 𝑨𝒍𝒍𝒆𝒈𝒊𝒂𝒏𝒕 𝒇𝒍𝒊𝒈𝒉𝒕 𝒘𝒊𝒕𝒉𝒊𝒏 𝟐𝟒 𝒉𝒐𝒖𝒓𝒔 𝒐𝒇 𝒃𝒐𝒐𝒌𝒊𝒏𝒈 𝒇𝒐𝒓 𝒂 𝒇𝒖𝒍𝒍 𝒓𝒆𝒇𝒖𝒏𝒅 ( +𝟭-𝟴𝟴𝟴-𝟮𝟲𝟳-𝟵𝟱𝟱𝟭) (𝑼𝑺) 𝒐𝒓 +(+𝟒𝟒-𝟐𝟎𝟒-𝟓𝟖𝟔-𝟓𝟗𝟕𝟖 ) (𝑼𝑲)), 𝒂𝒔 𝒍𝒐𝒏𝒈 𝒂𝒔 𝒕𝒉𝒆 𝒇𝒍𝒊𝒈𝒉𝒕 𝒊𝒔 𝒂𝒕 𝒍𝒆𝒂𝒔𝒕 𝟕 𝒅𝒂𝒚𝒔 𝒂𝒘𝒂𝒚. 𝑻𝒉𝒊𝒔 𝒂𝒑𝒑𝒍𝒊𝒆𝒔 𝒕𝒐 𝒃𝒐𝒕𝒉 𝒐𝒏𝒆-𝒘𝒂𝒚 𝒂𝒏𝒅 𝒓𝒐𝒖𝒏𝒅-𝒕𝒓𝒊𝒑 𝒃𝒐𝒐𝒌𝒊𝒏𝒈𝒔. 𝑻𝒆𝒓𝒎𝒔 𝒂𝒏𝒅 𝒄𝒐𝒏𝒅𝒊𝒕𝒊𝒐𝒏𝒔 𝒎𝒂𝒚 𝒂𝒑𝒑𝒍𝒚. Yes, you can cancel an Allegiant flight within 24 hours of booking for a full refund ( +𝟭-𝟴𝟴𝟴-𝟮𝟲𝟳-𝟵𝟱𝟱𝟭) (US) or +( 1-888-267-9551 ) (UK)), as long as the flight is at least 7 days away. This applies to both one-way and round-trip bookings. Terms and conditions may apply.