Dropping someone at a UK airport? On average, expect to pay around £6.51, but...

https://www.bookmark-friend.win/dropping-someone-off-at-uk-airports-costs-more-than-you-might-think-averaging

Dropping someone at a UK airport? On average, expect to pay around £6.51, but it’s closer to £10 at Gatwick and £7 at Heathrow