If staying near Hammersmith or Earl’s Court, the Piccadilly line offers a straightforward

https://cristiankgzr737.iamarrows.com/heathrow-terminal-2-access-trains-tubes-buses-and-drop-off-points-2

If staying near Hammersmith or Earl’s Court, the Piccadilly line offers a straightforward, single-seat ride to Heathrow without needing to change trains.