The airline offers various types of ways to checking-in for the flight such as online check-in, mobile check-in, and airport check-in. You can opt for the best option that is comfortable for you and make KLM Reservations accordingly.

Online Check-in

Online check-in is the simplest way to get your boarding pass without stepping out of your space. This facility opens between 30 hours and 1 hour before the flight take-off. Online check-in opens 24 hours before the Flight run-off for the flights that leave to the US.

Mobile Check-in

Download the KLM app now and get your boarding pass in less than no time. This app is available for free and you can easily get the same within a blink of an eye. The airline will send you the e-boarding pass that you need to keep safe until you board the plane.

Airport Check-in

Airport check-in is available between 2 hours and 40 minutes before the flight take-off for Europe and 3 hours and 60 minutes before the flight take-off for the intercontinental flights.
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American Airlines Official Site