The average train between Heathrow and St. James's Park Underground Station takes 41 min and the fastest train takes 33 min. The train runs at least 3 times per hour from Heathrow to St. James's Park Underground Station. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 20 minutes between Heathrow and St. James's Park Underground Station. The earliest departure is at 5:17 AM in the morning, and the last departure from Heathrow is at 5:32 PM which arrives into St. James's Park Underground Station at 6:13 PM. All services require a transfer at London Paddington and take an average of 41 min. The schedules shown below are for the next available departures.

39 min • 1 change

43 min • 1 change

35 min • 1 change

40 min • 1 change
Want to know about travelling from Heathrow to St. James's Park Underground Station? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Heathrow to St. James's Park Underground Station. However, there are services departing from Heathrow station and arriving at St. James's Park Underground Station station via London Paddington. The journey, including transfers, takes approximately 41 min.
Heathrow to St. James's Park Underground Station train services, operated by Heathrow Express, depart from Heathrow Terminals 2 & 3 station.
Heathrow to St. James's Park Underground Station train services, operated by Heathrow Express, arrive at St. James's Park station.
The distance between Heathrow and St. James's Park Underground Station is 22.4 km. The road distance is 31 km.
London Underground (Tube) operates a subway from Heathrow Terminals 2 & 3 station to Green Park station every 5 minutes. Tickets cost £12–50 and the journey takes 47 min.