Dropping someone off at a UK airport can cost more than you think—on average,...

https://lanessmartnews.zenbloomer.com/posts/if-i-pre-book-parking-is-it-usually-cancellable

Dropping someone off at a UK airport can cost more than you think—on average, it’s about £6.51, but at Gatwick, it hits £10, and Heathrow charges around £7