From the West End, take the Piccadilly line; estimate around 50 minutes to Terminal 5
https://arthurrops446.wpsuo.com/private-hire-and-ride-hailing-to-heathrow-what-to-know-before-you-book-3
From the West End, take the Piccadilly line; estimate around 50 minutes to Terminal 5, and consider traveling off-peak for a more comfortable journey.