Aer Lingus flight cancellation policy is very simple. If Aer Lingus cancels your flight, you will be notified either online or offline. When an airline cancels your flight, you have two options: reschedule or cancel your flight. You can cancel your Aer Lingus reservation up to two hours before the scheduled departure time. If you cancel your ticket, you must notify the airline within the validity time specified on the ticket. Aer Lingus will charge a cancellation fee, which depends on your fare type and cancellation period. https://flightcancellationpolicy.com/aer-lingus-cancellation-policy