Lufthansa opens online check-in 23 hours before your scheduled flight. You can check in online, through the app, or at the airport. It’s best to do it online so you can pick your seat early and avoid airport lines. For flights within Germany or Europe, check-in usually closes 40 minutes before departure. For long-haul international flights, it can close 60 minutes before departure. If you have bags to check, make sure to arrive early and use the bag drop service. Lufthansa also has self-service kiosks at many airports. The earlier you check in, the more time you’ll have to relax before your flight.