Dropping someone off at UK airports can add up—on average it costs about £6.51,...

https://www.bookmarkmaster.win/thinking-of-dropping-someone-off-at-the-airport-on-average-it-costs-around

Dropping someone off at UK airports can add up—on average it costs about £6.51, but places like Gatwick hit £10. Heathrow’s around £7, and remember, pick-up fees can differ too