Is Portsmouth a city?

Yes, it is a major naval city in Hampshire.

How far is it from London?

It is about 75 miles southwest of London, easily accessible by train.

Is it worth visiting?

Yes, it has a rich naval history and beautiful waterfront.

There are several public car parks located near the city center.

Dolgellau

Portsmouth

Train Driving

Dolgellau to Portsmouth

Updated: 30 May 2026

The journey from Dolgellau to Portsmouth covers approximately 400 km. Driving is the most direct method, utilizing the A470, M6, and A3. Train travel involves a journey to London Euston, a transfer to Waterloo, and then a train to Portsmouth Harbour. Expect a travel time of 6.5 to 7.5 hours. This route takes you from the scenic Welsh mountains to the historic naval city of Portsmouth. It is a popular route for those traveling from North Wales to the south coast.

Total Distance: 400 km driving distance; 340 km straight-line air distance.

Fastest Way

Driving via the A3 is the fastest, taking approximately 6.5 hours.

Cheapest Way

Driving is the most cost-effective option for this distance.

Compare Dolgellau to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	7 hours 30 mins	6 hours 30 mins
Avg Price	140-220 GBP	75-110 GBP
Operator	Transport for Wales and South Western Railway	N/A
Route	Dolgellau to Machynlleth, Birmingham New Street, London Euston, London Waterloo, Portsmouth Harbour	A470, A5, M6, A3
Tip	The transfer between London stations is the most challenging part of this journey.	The A3 can be busy; check for roadworks before starting your journey.

Travel Tips

London Transfer
Allow at least 60 minutes for the transfer between London Euston and Waterloo.
Parking
Use the city center car parks which are well-signposted.
Booking
Book train tickets in advance to secure the best rates.
Walking
The city center is very walkable and full of historic charm.
Traffic
Avoid the A3 during Friday afternoon peak hours.

Safety Tips

Road Safety
Be cautious on the A3 motorway during heavy rain.
Station Safety
Stay alert in busy London stations during your transfer.
Emergency
Keep your phone charged for navigation and emergencies.
Personal Safety
Portsmouth is generally safe, but keep valuables secure in busy areas.