The average bus between Southampton and Harrow takes 3h 6m and the fastest bus takes 2h 30m. The bus service runs several times per day 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 3 times a day 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 12:45 AM. All services require a transfer, and take on average 3h 6m. The schedules shown below are for the next available departures.

2h 38m • 1 change

2h 38m • 1 change
Arrives next day

4h 15m • 1 change

2h 38m • 1 change

2h 38m • 1 change
Arrives next day

4h 15m • 1 change

2h 38m • 1 change

2h 38m • 1 change
Arrives next day

4h 15m • 1 change

2h 38m • 1 change

2h 38m • 1 change
Arrives next day

4h 15m • 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 6m.
Southampton to Harrow bus services, operated by National Express, depart from Coach Station.
Southampton to Harrow bus services, operated by National Express, arrive at St Georges Centre station.
Book your Southampton to Harrow bus tickets online with National Express and Metroline Travel.
The distance between Southampton and Harrow is 105.8 km. The road distance is 128 km.
You can take a bus from Coach Station to St Georges Centre via Heathrow Central Bus Station in around 3h 1m.