Lot Polish Airlines online check in normally entails arriving at the airport, either at the counter or online, to confirm your reservation, acquire a boarding card and check in your luggage if necessary. At the airport counter, airline personnel assist with the process, but online check-in allows passengers to do it in advance via the airline's website or mobile app. Passengers must present identity, travel documents, and flight information. After checking in, you'll go through security and immigration before boarding your flight. Arrive early to ensure a smooth check-in process, especially for foreign flights.