London Stansted airport has the most expensive drop-off zone charge, at £7 for up to 15 minutes, or £25 for over 15 minutes.
London Gatwick, Manchester, and once it is introduced, Heathrow, all charge £5 for airport zone drop-offs, while Edinburgh, Glasgow and Bristol charge £4 a time.
At the lower end of the spectrum, Birmingham airport charges £3 for drop-offs at its designated zone, while at Belfast International it is £1.
London Luton has a drop-off zone close to the airport which is free for 15 minutes. But, at the drop-off zone closest to the terminal, the fee is £5 for 10 minutes, and £1 per minute thereafter.
Many airports charge more than the basic fee once a certain timeframe is reached.
At Gatwick airport, while the basic drop-off zone charge is £5, £1 extra is added for each additional minute up to 20 minutes, up to a maximum of £25 for 30 minutes.