The average bus between Portsmouth Harbour and Swansea takes 7h 34m and the fastest bus takes 6h 30m. The bus service runs several times per day from Portsmouth Harbour to Swansea. 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 Portsmouth Harbour and Swansea. The earliest departure is at 3:20 AM at night, and the last departure from Portsmouth Harbour is at 8:10 PM which arrives into Swansea at 2:50 AM. All services require a transfer at The Hard Interchange and take an average of 7h 34m. The schedules shown below are for the next available departures.

7h 15m • 1 change

6h 55m • 1 change
Arrives next day

6h 40m • 1 change

9h • 1 change

7h 45m • 1 change

7h 20m • 1 change

7h • 1 change

9h • 1 change

8h 15m • 1 change

7h 30m • 1 change

7h 20m • 1 change

9h • 1 change

8h 15m • 1 change

6h 30m • 1 change

7h 10m • 1 change

9h • 1 change

8h 15m • 1 change

6h 30m • 1 change

7h 10m • 1 change

9h • 1 change

8h 15m • 1 change

6h 30m • 1 change

7h 10m • 1 change

9h • 1 change

8h 15m • 1 change

8h • 1 change

7h 35m • 1 change
Want to know about travelling from Portsmouth Harbour to Swansea? 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 Portsmouth Harbour to Swansea. However, there are services departing from Portsmouth Harbour station and arriving at Swansea station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 7h 34m.
Portsmouth Harbour to Swansea bus services, operated by National Express, depart from The Hard Interchange station.
Portsmouth Harbour to Swansea bus services, operated by National Express, arrive at Swansea Bus Station Stand B.
The distance between Portsmouth Harbour and Swansea is 217.7 km. The road distance is 399 km.
You can take a vehicle from Portsmouth Harbour to Swansea Bus Station Stand B via The Hard Interchange and Heathrow Central Bus Station in around 6h 37m.