Heading to a UK airport soon? Dropping someone off can cost around £6.51 on...
https://magic-wiki.win/index.php/How_Much_Money_Do_You_Save_by_Using_Free_Long_Stay_Instead_of_the_Barrier%3F
Heading to a UK airport soon? Dropping someone off can cost around £6.51 on average, with Gatwick hitting a tidy £10 and Heathrow charging about £7