Dropping someone at a UK airport can cost £6.51 on average, with Gatwick...

https://medium.com/@hello_89066/uk-airport-drop-off-fees-have-quietly-hit-10-heres-the-real-maths-on-when-it-s-cheaper-to-just-f5f46948fa6f

Dropping someone at a UK airport can cost £6.51 on average, with Gatwick hitting around £10 and Heathrow about £7