The average train between Heathrow and Sudbury takes 41 min and the fastest train takes 38 min. The train runs at least 6 times per hour from Heathrow to Sudbury. 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 10 minutes between Heathrow and Sudbury. The earliest departure is at 7:53 AM in the morning, and the last departure from Heathrow is at 4:06 PM which arrives into Sudbury at 4:44 PM. All services require a transfer, and take on average 41 min. The schedules shown below are for the next available departures.

43 min • 1 change

43 min • 1 change

40 min • 1 change

41 min • 1 change
Want to know about travelling from Heathrow to Sudbury? 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 Sudbury. However, there are services departing from Heathrow station and arriving at Sudbury station via Acton Town station station. The journey, including transfers, takes approximately 41 min.
Heathrow to Sudbury train services, operated by London Underground (Tube), depart from Heathrow Terminals 2 & 3 station.
Heathrow to Sudbury train services, operated by London Underground (Tube), arrive at Sudbury Town station.
The distance between Heathrow and Sudbury is 13.5 km. The road distance is 20 km.
You can take a subway from Heathrow Terminals 2 & 3 station to Sudbury Town station via Acton Town station in around 39 min.