Some airports charge fees to drivers dropping passengers off, and non-refundable fees to use baggage trolleys, so you might want to have some change available when using these airports. Some airports charge passengers to use the airport. These fees are called airport development fees.
Airport development fees
Some airports charge additional fees to passengers once they are at the airport. This involves the purchase of a ticket that allows passengers to go through security. Airlines must make you aware of these fees when you book flights out of these airports.