Is there a direct train?

No, you will need to change at Cardiff or Bristol.

Like any city, exercise standard precautions.

Can I visit the dockyard?

Yes, it is a major tourist attraction.

Yes, there are public car parks available.

Milford Haven

Portsmouth

Train Driving

Milford Haven to Portsmouth

Updated: 30 May 2026

The journey from Milford Haven to Portsmouth covers 380 km. By train, you can reach Portsmouth in approximately 5 hours and 30 minutes, usually requiring a change at Cardiff or Bristol. Driving takes about 5 hours via the A40 and M4/M3 motorways. Portsmouth is a major port city with a rich maritime history and a vibrant cultural scene. The route is a long but scenic journey through the Welsh countryside and the English South Coast.

Total Distance: 380 km driving distance; 330 km straight-line distance.

Fastest Way

Driving, taking 5 hours outside of peak traffic.

Cheapest Way

Train, if booked in advance.

Compare Milford Haven to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	5 hours 30 mins	5 hours
Avg Price	75 GBP - 140 GBP	80 GBP fuel
Operator	Transport for Wales / GWR	N/A
Route	Milford Haven to Cardiff, then change for Portsmouth.	A40 to M4/M3 motorways.
Tip	Book well in advance to secure the best prices.	The M4/M3 can be busy; check traffic updates before departing.

Travel Tips

Train Station
Portsmouth Harbour station is centrally located.
Parking
Use the public car parks in the city centre.
Public Transport
Local bus and train services provide good coverage of the area.
Booking
Use the Trainline or GWR website to book your tickets.
Walking
The city centre is compact and easy to navigate on foot.