The average bus between Uxbridge and Portsmouth Harbour takes 2h 20m and the fastest bus takes 2h 11m. The bus service runs several times per day from Uxbridge to Portsmouth Harbour. 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 every 4 hours between Uxbridge and Portsmouth Harbour. The earliest departure is at 12:00 AM at night, and the last departure from Uxbridge is at 10:18 PM which arrives into Portsmouth Harbour at 12:30 AM. All services require a transfer at Heathrow Central Bus Station and take an average of 2h 20m. The schedules shown below are for the next available departures.

2h 15m • 1 change

2h 25m • 1 change

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2h 16m • 1 change

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2h 30m • 1 change

2h 17m • 1 change

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2h 15m • 1 change

2h 19m • 1 change

2h 28m • 1 change

2h 16m • 1 change

2h 15m • 1 change

2h 19m • 1 change

2h 33m • 1 change

2h 43m • 1 change

2h 15m • 1 change

2h 19m • 1 change

2h 33m • 1 change

2h 43m • 1 change

2h 15m • 1 change

2h 19m • 1 change

2h 33m • 1 change

2h 43m • 1 change
Want to know about travelling from Uxbridge to Portsmouth Harbour? 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 Uxbridge to Portsmouth Harbour. However, there are services departing from Uxbridge station and arriving at Portsmouth Harbour station via St Georges Square. The journey, including transfers, takes approximately 2h 20m.
Uxbridge to Portsmouth Harbour bus services, operated by Carousel Buses, depart from Heathrow Central Bus Station.
Uxbridge to Portsmouth Harbour bus services, operated by Carousel Buses, arrive at St Georges Square station.
The distance between Uxbridge and Portsmouth Harbour is 94.3 km. The road distance is 117 km.
National Express operates a bus from Heathrow Central Bus Station to St Georges Square hourly. Tickets cost £12–35 and the journey takes 1h 50m.