Avoid last-minute stress by aiming to arrive at Heathrow two to three hours before departure; select the fastest route

https://rafaellkgz938.theburnward.com/driving-to-heathrow-airport-best-routes-traffic-tips-and-drop-off-rules-2

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.