The average bus between Harrow and Southampton takes 2h 54m and the fastest bus takes 2h 32m. There is a bus service every few hours from Harrow to Southampton. 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 Harrow and Southampton. The earliest departure is at 12:05 AM at night, and the last departure from Harrow is at 10:50 PM which arrives into Southampton at 1:30 AM. All services require a transfer, and take on average 2h 54m. The schedules shown below are for the next available departures.

3h 4m • 1 change

2h 54m • 1 change

2h 43m • 1 change
Arrives next day

2h 39m • 1 change

2h 55m • 1 change

2h 50m • 1 change

2h 50m • 1 change

2h 50m • 1 change

2h 55m • 1 change

2h 50m • 1 change

2h 40m • 1 change

2h 50m • 1 change

2h 53m • 1 change

3h • 1 change

2h 54m • 1 change

2h 54m • 1 change
Want to know about travelling from Harrow to Southampton? 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 Harrow to Southampton. However, there are services departing from Harrow station and arriving at Southampton station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 2h 54m.
Harrow to Southampton bus services, operated by First Bus London, depart from Harrow Bus Station.
Harrow to Southampton bus services, operated by First Bus London, arrive at Coach Station.
The distance between Harrow and Southampton is 105.8 km. The road distance is 126 km.
You can take a bus from Harrow Bus Station to Coach Station via Heathrow Central Bus Station in around 3h 13m.