The average train between South Harrow and Heathrow Terminal 3 takes 51 min and the fastest train takes 45 min. The train runs at least 5 times per hour from South Harrow to Heathrow Terminal 3. 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 South Harrow and Heathrow Terminal 3. The earliest departure is at 12:54 AM at night, and the last departure from South Harrow is at 1:44 PM which arrives into Heathrow Terminal 3 at 2:35 PM. All services require a transfer at Acton Town station and take an average of 51 min. The schedules shown below are for the next available departures.

4h 32m • 1 change

55 min • 1 change

47 min • 1 change

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