Is there a direct train?

No, you must change at Cardiff or Bristol.

Is Portsmouth worth visiting?

Yes, it is a vibrant city with a rich maritime history.

No, the Severn Bridge tolls were removed.

What is the best way to travel?

Driving is generally more convenient for this route.

Haverfordwest

Portsmouth

Train Driving

Haverfordwest to Portsmouth

Updated: 29 May 2026

The journey from Haverfordwest to Portsmouth covers about 380 km. Driving takes approximately 5 hours via the A40, M4, and M3. By train, you will travel from Haverfordwest to Cardiff or Bristol, then connect to a service to Portsmouth Harbour, taking around 5 hours and 30 minutes. Portsmouth is a historic naval city with a rich maritime heritage. This route connects the Welsh coast to the south coast of England.

Total Distance: 380 km driving distance; 300 km straight-line air distance.

Fastest Way

Driving, taking 5 hours under normal conditions.

Cheapest Way

Driving, especially if sharing fuel costs.

Compare Haverfordwest to Portsmouth Routes

	Train Connecting	Driving Direct
Duration	5 hours 30 mins	5 hours
Avg Price	£65 - £120	£55 - £80 fuel
Operator	Great Western Railway	N/A
Route	Haverfordwest to Cardiff Central, then to Portsmouth Harbour.	A40, M4, M3.
Tip	The train journey offers beautiful views of the countryside.	The M3 can be busy; allow extra time during peak hours.

Travel Tips

M4/M3 Traffic
Check for traffic updates on the M4 and M3 before leaving.
Train Booking
Book in advance to get cheaper tickets on GWR services.
Parking
Use the multi-story car parks in Portsmouth city center.
Station Access
Portsmouth Harbour station is centrally located.
Walking
Portsmouth city center is walkable; wear comfortable footwear.

Safety Tips

Road Safety
The M3 is a major motorway; stay alert and follow speed limits.
Personal Safety
Portsmouth is a safe city, but keep your belongings secure in busy areas.
Emergency
Dial 999 for emergencies.
Night Travel
Ensure your vehicle is well-maintained for long motorway journeys.