The Heathrow Express from Paddington reaches the airport in about 15 mins
https://damienbkpe086.huicopper.com/getting-to-heathrow-by-tube-piccadilly-line-tips-times-and-luggage-advice-1
The Heathrow Express from Paddington reaches the airport in about 15 minutes. It’s the fastest rail possibility, nevertheless pricier than the Tube.