<P> At the time of check - in, the passenger hands over baggage which is checked by the airport security and sealed . Anything that is above the weight limit or which is not allowed to be carried by the passenger himself to the aircraft cabin is usually handed over to the agent at the time of check - in . The baggage allowance, if any, is prescribed by the airline and anything in excess will warrant additional surcharges . </P> <P> Many airlines flying domestic services have a self - check - in process allowing passengers with bags to check - in at the self - service kiosks with luggage up to approximately 30 minutes prior to departure time . Passengers then attach the baggage tag and drop the bag at the baggage drop belt . Passengers without checked luggage can go straight to the lounge (if entitled to lounge access) and check in at the kiosk there using their ePass (a small RFID device only for its premium customers) or proceed straight to the departure gate . Many airlines use electronic check - in such as ePass, mPass, or similar mobile apps, and these applications serve as the boarding pass . </P> <P> KLM also since 2008 provides a self - service bag drop counter at Schiphol International Airport, and Lufthansa does the same in Frankfurt International Airport and Munich International Airport . Stockholm - Arlanda Airport introduced self - service bag drop in 2012 . </P> <P> It is expected that self - service bag drop will be much more common . </P>

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