1. 1Visit icelandair.com/support/pre-flight/check-in/ or open the Icelandair app.
2. 2Enter your last name and booking reference or ticket number.
3. 3Select the passengers you wish to check in.
4. 4Choose or confirm your seat assignment (fees may apply for extra legroom).
5. 5Add any extra baggage if needed.
6. 6Receive your boarding pass via email, download it, or add it to Apple/Google Wallet.

Booking reference or ticket number, valid passport for international travel, and any required visas or travel authorizations (such as ESTA for the US or eTA for Canada).

Seat selection is available during check-in. Standard seats can be selected, but seats with more legroom are available for an additional fee. Passengers can also book an extra seat for personal comfort by contacting the service center in advance.

Passengers traveling internationally must ensure all travel documents, including passports and visas, are valid. Advance Passenger Information (API) and specific authorizations like ESTA (for the US) or eTA (for Canada) must be completed before flying.

Groups of 10 or more passengers traveling together on a group booking must adhere to specific group terms, but standard online check-in is available using the group booking reference. Passengers on the same standard booking can be checked in together.

1. 1'Unable to check in online' - Ensure you are within the 24-hour window and have entered the correct booking reference and last name.
2. 2'Baggage drop issues' - If you checked in online, you must still print bag tags at a self-service kiosk before going to the drop-off desk.
3. 3'Missing travel documents' - Ensure API and any required visas/ESTA are completed, as incomplete info can block online check-in.