How long is the drive?

Approximately 6 hours and 15 minutes.

Is Portsmouth a good city to visit?

Yes, it has a rich history and vibrant culture.

No, there are no tolls on this route.

What is the best way to get around?

Walking and public transport are great in the city center.

Gaerwen

Portsmouth

Train Driving

Gaerwen to Portsmouth

Updated: 30 May 2026

The journey from Gaerwen to Portsmouth covers approximately 260 miles. You will travel from Bangor station to Portsmouth, usually involving a change at London Euston and then a transfer to London Waterloo. Driving involves taking the A55, M56, M6, M40, and M3 motorways. This route connects the rural landscape of Anglesey to the coastal city of Portsmouth.

Total Distance: 440 km driving distance and 350 km straight-line distance.

Fastest Way

Train is generally more reliable than driving due to motorway congestion.

Cheapest Way

Advance train tickets are the most cost-effective way to travel.

Compare Gaerwen to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	6 hours	6 hours 15 mins
Avg Price	75-170 GBP	85-130 GBP fuel
Operator	Avanti West Coast / South Western Railway	Personal Vehicle
Route	Bangor to Portsmouth via London	A55, M56, M6, M40, M3
Tip	The transfer between London stations is required; allow extra time.	The M3 can be very busy; check for traffic updates before leaving.

Travel Tips

Train Booking
Use the National Rail website for tickets.
Driving
Portsmouth city center has many one-way systems; use a GPS.
Station Access
Portsmouth Harbour station is centrally located and well-connected.
Weather
The South Coast can be mild; bring a light jacket.
Connectivity
Free Wi-Fi is available at Portsmouth Harbour station.