Heading to the airport? Dropping off can cost more than you think—on average...

https://alpha-wiki.win/index.php/If_I_Have_No_Car,_Is_Taxi_the_Best_Option_for_a_Very_Short_Trip_to_the_Airport%3F

Heading to the airport? Dropping off can cost more than you think—on average £6.51, but it’s £10 at Gatwick and around £7 at Heathrow. We break down drop-off fees versus parking, including those often-overlooked pick-up charges