Is there a direct train?

No, you must change at Cardiff or Newport.

How long is the drive?

It takes about 4.5 hours via the M4.

Is Southampton worth visiting?

Yes, it has a rich history and great attractions.

National Express operates coaches to Southampton.

What is the best way to travel?

Train is very convenient as it is a direct route.

Haverfordwest

Southampton

Train Driving

Haverfordwest to Southampton

Updated: 30 May 2026

The journey from Haverfordwest to Southampton covers 300 kilometers. By car, the route follows the A40 and M4 motorway, taking about 4.5 hours. By train, you can travel from Haverfordwest to Cardiff or Newport, then transfer to a service to Southampton Central. This route connects the rural west of Wales to the major city of Southampton. Expect a smooth journey with plenty of scenic views. Plan your trip well in advance for the best travel experience.

Total Distance: 300 km driving distance, 260 km straight-line air distance.

Fastest Way

Both driving and train travel take approximately 4.5 hours.

Cheapest Way

Advance train tickets are often cheaper than fuel and parking costs.

Compare Haverfordwest to Southampton Routes

	Train Connecting	Driving Direct
Duration	4 hours 30 mins	4 hours 30 mins
Avg Price	60 GBP	50 GBP
Operator	Transport for Wales/GWR	Private Vehicle
Route	Haverfordwest to Cardiff/Newport to Southampton Central	A40 to M4
Tip	Book advance tickets for significant savings.	Check for roadworks on the M4.