The average train between Heathrow Terminal 3 and South Harrow takes 48 min and the fastest train takes 44 min. The train runs at least 5 times per hour from Heathrow Terminal 3 to South Harrow. 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 15 minutes between Heathrow Terminal 3 and South Harrow. The earliest departure is at 12:21 AM at night, and the last departure from Heathrow Terminal 3 is at 1:36 PM which arrives into South Harrow at 2:24 PM. All services require a transfer at Heathrow Terminals 2 & 3 station and take an average of 48 min. The schedules shown below are for the next available departures.

54 min • 1 change

54 min • 1 change

45 min • 1 change

51 min • 1 change
Want to know about travelling from Heathrow Terminal 3 to South Harrow? 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 Terminal 3 to South Harrow. However, there are services departing from Heathrow Terminal 3 station and arriving at South Harrow station via Acton Town station station. The journey, including transfers, takes approximately 48 min.
Heathrow Terminal 3 to South Harrow train services, operated by London Underground (Tube), depart from Heathrow Terminals 2 & 3 station.
Heathrow Terminal 3 to South Harrow train services, operated by London Underground (Tube), arrive at South Harrow station.
The distance between Heathrow Terminal 3 and South Harrow is 12.6 km. The road distance is 24 km.
You can take a vehicle from Heathrow Terminal 3 to South Harrow station via Heathrow Terminals 2 & 3 station and Acton Town station in around 50 min.