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Usually you have to scan your boarding pass at least twice at the airport: First at the security checkpoint and then at the gate for boarding (plus once more if you check bags). If somebody does not check in bags, does the airline know that a passenger arrived at the airport and at least made it to (not necessarily through) security? If so, would that be a trigger to call somebody out before the flight closes (and also to not call out if that passenger hasn’t even scanned his boarding pass yet at security)?

(Moved here from aviation SE)

silent
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1 Answers1

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Airlines can know you are in the airport if you checked your bags in. It is illegal for the plane to leave with your bags if you're not on the flight. At security, I assume they don't really care about your booking, only that you are on a flight and have the authorisation to be in that area of the airport.

On all international flights, and on domestic ones in most of the world, airlines adhere to a policy called Positive Passenger Bag Match (PPBM), which states that bags flying must be matched to a passenger on-board the flight.

Budget airlines won't always do final calls, sometimes they just shut the gate 20 or so minutes before the flight.

This can vary from one airport to another, some airports don't even do final calls anymore as seen here:

So they don't always know you are at the airport if you haven't checked in your bag.

Daniil
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