Aer Lingus allows its passengers 3 ways to check in.
Airport
Travellers are able to use the traditional method of checking in at the airport but, please be advised that this will require that you show up early, to allow for check in and security screenings.
For North American flights, arrive 3h 30mins before departure, as check-in closes 75 mins prior to departure.
For European flights, arrive 2h 30mins before departure, as check-in closes 45 mins prior to departure.
Flights from Belfast, arrive 2h 30mins before departure, as check-in closes 30 mins prior to departure.
Online
Flight departure within the next 30 hours:
You can use their web check-in between 2 and 30 hours before your scheduled departure time. For transatlantic travel, you can use web check-in between 2 and 24 hours in advance of your departure time.
Flight departure outside of 30 hours:
On selected European routes, you can use the 30-day advance check-in between 30 days and 30 hours before your scheduled departure time. Please note a seat fee must be bought in order to advance check-in.
Mobile
Check-in procedures and timings applying to routes for mobile check-in are the same as mentioned above for online check-in.
For convenient check-in within Europe between 2 and 30 hours prior to departure, download the Aer Lingus App and access your boarding pass in a few easy steps.