The average train between Harrow and Brentford takes 32 min and the fastest train takes 28 min. The train runs at least 5 times per hour from Harrow to Brentford. 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 Harrow and Brentford. The earliest departure is at 12:04 PM in the afternoon, and the last departure from Harrow is at 7:55 PM which arrives into Brentford at 8:24 PM. All services require a transfer, and take on average 32 min. The schedules shown below are for the next available departures.

30 min • 1 change

33 min • 1 change

29 min • 1 change

33 min • 1 change
Want to know about travelling from Harrow to Brentford? 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 Harrow to Brentford. However, there are services departing from Harrow station and arriving at Brentford station via Acton Town station station. The journey, including transfers, takes approximately 32 min.
Harrow to Brentford train services, operated by London Underground (Tube), depart from South Harrow station.
Harrow to Brentford train services, operated by London Underground (Tube), arrive at Boston Manor station.
Book your Harrow to Brentford train tickets online with London Underground (Tube).
The distance between Harrow and Brentford is 10.6 km. The road distance is 13 km.
You can take a subway from South Harrow station to Boston Manor station via Acton Town station in around 26 min.