Learn exactly **when you can cancel Aer Lingus flights for free** in this clear guide. Discover the 24‑hour risk‑free cancellation window, fare-type flexibility with Saver, Smart, Flex, and Business tickets, and any destination-based exceptions. Understand timing, booking channels, and policy details so you know when you can make changes without penalties and travel confidently in 2025. https://www.flightaura.com/cancellation-policy/aer-lingus-cancellation-policy/