Is there a direct train?

No, you must change at Cardiff Central.

How long is the drive?

Approximately 4 hours 30 minutes.

Yes, but exercise standard city precautions.

What is the best way to travel?

Driving is the most direct method.

No, the M4 and A3 are toll-free.

Newport

Portsmouth

Train Driving

Newport to Portsmouth

Updated: 29 May 2026

The journey from Newport, Pembrokeshire to Portsmouth covers approximately 300 km. By car, you will travel east through Wales, cross the Prince of Wales Bridge, and follow the M4 and A3. By train, you will travel to Cardiff or Newport (Gwent) and then take a direct service to Portsmouth Harbour. Portsmouth is a historic naval city in Hampshire.

Total Distance: 300 km driving distance, 250 km straight-line air distance.

Fastest Way

Driving is generally faster, taking about 4 hours 30 minutes.

Cheapest Way

Driving is the most cost-effective for groups.

Compare Newport to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	6 hours	4 hours 30 mins
Avg Price	95-160 GBP	65-95 GBP
Operator	Great Western Railway	N/A
Route	Fishguard to Portsmouth Harbour via Cardiff.	A40 to M4, then A3 South.
Tip	Book tickets well in advance for the best prices.	The M4 and A3 can be busy; check traffic before leaving.

Travel Tips

Train Booking
Use the Trainline app to manage your multi-leg journey.
Traffic
The M4 and A3 are notorious for delays; allow extra time.
Public Transport
Portsmouth is a walkable city; use local buses for the outskirts.
Navigation
Portsmouth city center is busy; use public transport once you arrive.
Dining
Portsmouth has a diverse food scene; explore the waterfront.