Dropping someone off at a UK airport can cost you more than you might...

https://angelojvrt605.wpsuo.com/is-getting-a-lift-actually-free-once-you-count-drop-off-and-pick-up

Dropping someone off at a UK airport can cost you more than you might think—take Gatwick, where it’s around £10 just to stop briefly. Heathrow’s about £7, with average fees across airports around £6.51