Allegiant Air understands that travel plans can change unexpectedly, and they aim to provide flexibility to passengers who need to cancel their flights. In this comprehensive guide, we will delve into Allegiant Air's cancellation policy to answer the common question: "How can I cancel my Allegiant flight and get a full refund?" 1. Overview of Allegiant Air's Cancellation Policy: Allegiant Air provides passengers with options to cancel their flights, with refund eligibility depending on various factors such as fare type, timing of cancellation, and reason for cancellation. 2. Eligibility for a Full Refund: Allegiant Air typically offers full refunds for cancellations made within a certain timeframe before the scheduled departure, often within 24 hours of booking. Additionally, passengers may be eligible for a full refund if Allegiant Air cancels their flight or if they have purchased Trip Flex.