The average bus between Penzance and Portsmouth Harbour takes 12h 54m and the fastest bus takes 10h 55m. The bus service runs several times per day from Penzance 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 3 times a day between Penzance and Portsmouth Harbour. The earliest departure is at 4:45 AM at night, and the last departure from Penzance is at 9:25 PM which arrives into Portsmouth Harbour at 10:50 AM. All services require a transfer at Heathrow Central Bus Station and take an average of 12h 54m. The schedules shown below are for the next available departures.

11h 25m • 1 change

13h 25m • 1 change
Arrives next day

13h 15m • 1 change

11h 25m • 1 change

13h 25m • 1 change
Arrives next day

13h 25m • 1 change

11h 40m • 1 change

10h 55m • 1 change
Arrives next day

13h 25m • 1 change

13h 45m • 1 change

13h • 1 change
Arrives next day

13h 25m • 1 change
Want to know about travelling from Penzance 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 Penzance to Portsmouth Harbour. However, there are services departing from Penzance station and arriving at Portsmouth Harbour station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 12h 54m.
Penzance to Portsmouth Harbour bus services, operated by National Express, depart from Bus Station.
Penzance to Portsmouth Harbour bus services, operated by National Express, arrive at St Georges Square station.
The distance between Penzance and Portsmouth Harbour is 322.5 km. The road distance is 576 km.
You can take a bus from Bus Station to Portsmouth Harbour via Heathrow Central Bus Station and St Georges Square in around 10h 53m.