Avoid last-minute stress by aiming to arrive at Heathrow two to three hours before departure; select the fastest route
https://www.scribd.com/document/1074894734/Heathrow-Drop-Off-Charges-and-Pick-Up-Locations-Avoid-Fines-and-Hassles-212266
Avoid last-minute stress by aiming to arrive at Heathrow two to three hours before departure; select the fastest route available for your time window.