The average bus between Watford and Southampton takes 3h 3m and the fastest bus takes 2h 29m. There is a bus service every few hours from Watford 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 Watford and Southampton. The earliest departure is at 6:09 AM in the morning, and the last departure from Watford is at 11:01 PM which arrives into Southampton at 1:30 AM. All services require a transfer at Heathrow Terminal 2 and take an average of 3h 3m. The schedules shown below are for the next available departures.

3h 21m • 1 change

3h 30m • 1 change

2h 49m • 1 change

3h 2m • 1 change

2h 45m • 1 change

2h 54m • 1 change

2h 43m • 1 change

2h 43m • 1 change

2h 45m • 1 change

3h 14m • 1 change

2h 43m • 1 change

2h 43m • 1 change

3h 21m • 1 change

3h 17m • 1 change

2h 43m • 1 change

2h 43m • 1 change
Want to know about travelling from Watford 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 Watford to Southampton. However, there are services departing from Watford station and arriving at Southampton station via Heathrow Terminal 2. The journey, including transfers, takes approximately 3h 3m.
Watford to Southampton bus services, operated by Arriva UK, depart from Town Hall station.
Watford to Southampton bus services, operated by Arriva UK, arrive at Coach Station.
Book your Watford to Southampton bus tickets online with Arriva UK, National Express and First Berkshire & The Thames Valley.
The distance between Watford and Southampton is 109.1 km. The road distance is 142 km.
You can take a bus from Town Hall to Coach Station via Heathrow Terminal 2 and Heathrow Central Bus Station in around 3h 4m.