The average bus between Southampton and Harrow takes 3h 5m and the fastest bus takes 2h 32m. There is a bus service every few hours from Southampton to 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.
Buses run hourly between Southampton and Harrow. The earliest departure is at 2:05 AM at night, and the last departure from Southampton is at 8:30 PM which arrives into Harrow at 11:15 PM. All services require a transfer, and take on average 3h 5m. The schedules shown below are for the next available departures.

3h 18m • 1 change

3h 27m • 1 change

3h 29m • 1 change

3h 7m • 1 change

2h 39m • 1 change

2h 32m • 1 change

3h 8m • 1 change

3h 26m • 1 change

2h 39m • 1 change

2h 40m • 1 change

2h 52m • 1 change

3h 14m • 1 change

2h 39m • 1 change

2h 40m • 1 change

2h 52m • 1 change

3h 14m • 1 change
Want to know about travelling from Southampton to 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 bus from Southampton to Harrow. However, there are services departing from Southampton station and arriving at Harrow station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 3h 5m.
Southampton to Harrow bus services, operated by National Express, depart from Coach Station.
Southampton to Harrow bus services, operated by National Express, arrive at Harrow Bus Station.
The distance between Southampton and Harrow is 105.8 km. The road distance is 127 km.
You can take a bus from Coach Station to Harrow Bus Station via Heathrow Central Bus Station in around 2h 59m.