Is there a direct train?

No, you must change at Swansea.

How long is the drive?

It takes about 5 hours depending on traffic.

Yes, especially near London and the Severn Bridge.

Yes, National Express operates services from Pembroke Dock to London Victoria.

Where is the best place to park in London?

Use Parkopedia to find secure parking outside the Congestion Charge zone.

Pembroke Dock

London

Train Driving

Pembroke Dock to London

Updated: 30 May 2026

The journey from Pembroke Dock to London covers approximately 260 miles. By train, you travel from Pembroke Dock to Swansea, then transfer to a Great Western Railway service to London Paddington. By car, the route follows the A477, A40, and the M4 motorway directly into West London. This is a major cross-country route connecting the far west of Wales to the capital. Expect a travel time of around 5 to 6 hours by train or car. The route offers a transition from the coastal beauty of Pembrokeshire to the bustling urban landscape of London.

Total Distance: 420 km driving distance; 360 km straight-line air distance.

Fastest Way

Driving, provided you avoid major traffic incidents on the M4.

Cheapest Way

Train, if booked well in advance using an Advance ticket.

Compare Pembroke Dock to London Routes

	Train Connecting	Driving Direct
Duration	5 hours 30 mins	5 hours
Avg Price	£80 - £160	£70 - £110 in fuel
Operator	Transport for Wales and GWR	N/A
Route	Pembroke Dock to Swansea, then direct to London Paddington.	A477, A40, M4.
Tip	Book GWR tickets in advance for significant savings.	The M4 can be very busy near London; plan to arrive outside of rush hour.

Travel Tips

London Congestion
Be aware of the Congestion Charge zone if driving into central London.
Train Comfort
GWR trains offer power sockets and Wi-Fi for your journey.
Station Arrival
London Paddington is a major hub; follow signs for the Underground.
Booking
Use the Trainline or GWR website to compare prices.
Luggage
Keep your luggage secure when traveling on busy London trains.

Safety Tips

Road Safety
The M4 is a high-speed road; maintain a safe distance from other vehicles.
Personal Safety
Stay alert in busy London stations and tourist areas.
Emergency
Call 999 for any emergency situation.
Night Safety
Use licensed taxis or official transport when traveling at night in London.