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

https://blogfreely.net/rothesqlmw/what-should-i-do-if-im-dropping-someone-off-and-they-have-lots-of-bags

Dropping someone off at UK airports can quickly add up—on average, it costs about £6.51, but at Gatwick, it’s closer to £10. Heathrow charges around £7