Aer Lingus Online Check-In (2026)
Aer Lingus online check-in opens 48 hours before European flights and 24 hours before transatlantic flights, closing 60-95 minutes before departure. You can check in via the Aer Lingus app or website using your 6-character booking reference.
Page updated: August 2026
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Call to Check for a Last-Minute UpgradeCheck-In Timing
| Airline | Aer Lingus (EI) |
|---|---|
| Check-In Opens | 48 hours before departure for flights within Europe (15 days for Plus/Advantage/AerSpace fares or Saver with purchased seat); 24 hours before departure for transatlantic flights |
| Check-In Closes | 60 minutes before departure for most European flights; 1 hour 35 minutes before departure for transatlantic flights |
| Check-In URL | https://www.aerlingus.com/prepare/check-in-options/online/ |
| Mobile App | Aer Lingus app (iOS, Android) |
| Mobile Boarding Pass | Yes |
| Airport Kiosk | Yes |
Step-by-Step Check-In Guide
- Visit aerlingus.com or open the Aer Lingus app
- Enter your 6-character booking reference and family name
- Manage your bags and select or confirm your seats
- Add any Advance Passenger Information (API) if required
- Save your boarding pass to your device, Apple Wallet, or print it as a PDF
- If you have checked bags, use a self-service Express Bag Drop Kiosk or check-in desk at the airport
Documents Needed
Booking reference (6-character PNR), valid passport or Irish Passport Card for international travel, and ESTA/Visa for US-bound flights.
Seat Selection
Seat selection is available. Saver fare customers are randomly allocated a seat for free during digital check-in and cannot change it later. Standard seats start from €4.99, Extra Legroom from €19.99, and Preferred from €18.99 for European flights. Transatlantic seats range from €44.99 to €74.99.
International Check-In Rules
Advance Passenger Information (API) must be provided at check-in using the travel document you will present at the airport. For transatlantic flights, passport details are mandatory.
Group Check-In
Groups of 7 to 25 people can be booked online. However, app check-in is not available for group bookings of 7 or more customers; they must use the website or check in at the airport.
Troubleshooting
1. 'Online check in is not available' - Usually means you need to check in at the airport desk for document verification. 2. 'App won't allow online check in' - The app does not support check-in for group bookings (7+ people); use the website instead. 3. 'Check in only available for children' - A known glitch; try checking in at the airport.
Frequently Asked Questions
- Can I use the Aer Lingus app to check in for a group?
- No, app check-in is not available for group bookings of 7 or more customers; you must use the website.
- Can I change my randomly allocated seat on a Saver fare?
- No, once randomly allocated during digital check-in, Saver fare customers cannot change their seat, even for a fee.
- Do all airports accept mobile boarding passes?
- No, Donegal and Faro airports do not currently accept mobile boarding passes.