Is there a direct train?

No, all rail journeys from Pembroke require at least one change at Swansea or Cardiff.

How long is the drive?

The drive typically takes 5.5 hours depending on traffic conditions on the M4.

Which station in London?

Trains from South Wales arrive at London Paddington station.

The Prince of Wales Bridge and Severn Bridge are now toll-free.

National Express operates coaches, but they are significantly slower than the train.

Pembroke

London

Train Driving

Pembroke to London

Updated: 29 May 2026

The journey from Pembroke to London covers approximately 420 km. You can travel via the Great Western Railway from Pembroke Dock station, typically requiring a change at Swansea or Cardiff Central. Driving involves taking the A477 to the A48, then joining the M4 motorway directly into West London. The train journey offers scenic views of the South Wales coastline before heading inland. Expect a total travel time of around 5 hours by rail or 5.5 hours by car depending on traffic. This route connects the historic Pembrokeshire coast to the bustling capital city.

Total Distance: 420 km driving distance, 340 km straight-line air distance.

Fastest Way

Train, taking approximately 5 hours 15 minutes including transfer.

Cheapest Way

Train, if booked as an Advance ticket, starting from 60 GBP.

Compare Pembroke to London Routes

	Train Connecting	Driving Direct
Duration	5 hours 15 mins	5 hours 30 mins
Avg Price	60-150 GBP	70-90 GBP fuel
Operator	Great Western Railway	Personal Vehicle
Route	Pembroke Dock to Swansea to London Paddington	A477, A48, M4 motorway
Tip	Book tickets 12 weeks in advance for the best Advance Single fares.	Avoid the M4 near Newport during weekday rush hours to save time.

Travel Tips

Railcard
Use a Two Together or Network Railcard to save one-third on off-peak fares.
Paddington Arrival
London Paddington is well-connected to the Elizabeth Line for quick cross-city travel.
Traffic
The M4 can be congested near the Prince of Wales Bridge; check live traffic updates.
Luggage
Trains have overhead racks, but space is limited; travel light for easier transfers.
Booking
Use the Trainline app or GWR website to monitor live platform changes.

Safety Tips

Station Safety
Keep your belongings in sight at all times in busy London terminals.
Driving Fatigue
Take a break at Membury or Leigh Delamere services on the M4.
Night Travel
Stick to well-lit areas when arriving at London stations late at night.
Emergency
Dial 999 for police, fire, or ambulance services in case of emergency.