Train
Driving
Milford Haven to Portsmouth
Updated: 30 May 2026
The journey from Milford Haven to Portsmouth covers 420 km, heading east through Wales and into the South of England. By car, you will follow the A40 and M4. Train travel involves a journey to Cardiff and a transfer to a direct service to Portsmouth Harbour. The drive takes about 5 hours and 30 minutes. This route connects the coastal town of Milford Haven to the historic city of Portsmouth.
Total Distance: 420 km driving distance; 370 km straight-line air distance.
Fastest Way
Driving is faster than the train due to the direct route.
Cheapest Way
The train is often cheaper if booked in advance.
Compare Milford Haven to Portsmouth Routes
|
Connecting
|
Direct
|
|
|---|---|---|
| Duration | 6 hours | 5 hours 30 mins |
| Avg Price | 75-160 GBP | 85-130 GBP |
| Operator | Transport for Wales | N/A |
| Route | Milford Haven to Cardiff, Cardiff to Portsmouth Harbour | A40, M4 |
| Tip | The train is very comfortable and scenic. | The M4 is a fast road; watch for speed cameras. |
Travel Tips
-
Train BookingBook tickets in advance to save money.
-
ParkingPortsmouth city center parking is very expensive; use public transport.
-
TrafficThe M4 can be busy; plan accordingly.
-
NavigationUse a GPS to navigate the city's streets.
-
LuggageIf taking the train, use the luggage racks provided.
Safety Tips
-
Road SafetyThe M4 has many speed cameras; stay within the limit.
-
City SafetyPortsmouth is generally safe, but keep your belongings secure.
-
Vehicle CheckCheck your lights and wipers before the long drive.
-
EmergencyKeep a warm blanket in the car, especially in winter.
People Also Ask
-
Is there a direct train?No, you must change at Cardiff.
-
How long is the drive?Approximately 5 hours and 30 minutes.
-
Is Portsmouth safe?Yes, it is a safe city.
-
Where to park?Use public transport to avoid parking charges.
-
Best time to visit?Summer for the best weather.
Quick Info
- From Milford Haven, Wales, United Kingdom
- To Portsmouth, Hampshire, United Kingdom
-
Modes
Best Time to Travel
May to September for the best weather.
Things to Do in Portsmouth
1
Historic Dockyard
A world-class museum of maritime history.
2
Spinnaker Tower
A beautiful historic tower in the city center.
3
Gunwharf Quays
A major shopping and dining destination.
4
Southsea Castle
A beautiful historic castle in the city center.
Tags
Milford Haven to Portsmouth
travel to Portsmouth
driving to Portsmouth
train to Portsmouth
Wales to Portsmouth
fastest way to Portsmouth
UK travel guide
Portsmouth attractions
Milford Haven transport
A40 route
