Dropping someone off at UK airports can add up—expect around £6.51 on average,...

https://www.charliebookmarks.win/dropping-someone-off-at-uk-airports-can-come-with-a-surprise-charge-on-average

Dropping someone off at UK airports can add up—expect around £6.51 on average, with Gatwick charging £10 and Heathrow £7. But pick-up fees can be different, so it’s worth checking both