Train
Driving
Haverfordwest to London
Updated: 30 May 2026
The journey from Haverfordwest to London covers approximately 400 kilometers. By car, the route follows the A40 and M4 motorway, typically taking 5 hours. By train, you can take a service from Haverfordwest to Cardiff or Swansea, then transfer to a high-speed Great Western Railway train to London Paddington. This is a major cross-country route. London offers endless attractions, from historic landmarks to world-class museums. Plan your trip well in advance for the best travel experience.
Total Distance: 400 km driving distance, 340 km straight-line air distance.
Fastest Way
Train is generally faster and more comfortable for this long distance.
Cheapest Way
Advance train tickets are often cheaper than fuel and London parking costs.
Compare Haverfordwest to London Routes
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Connecting
|
Direct
|
|
|---|---|---|
| Duration | 4 hours 30 mins | 5 hours |
| Avg Price | 90 GBP | 60 GBP |
| Operator | Great Western Railway | Private Vehicle |
| Route | Haverfordwest to Cardiff/Swansea to London Paddington | A40 to M4 |
| Tip | Book advance tickets for significant savings. | Avoid M4 traffic by traveling outside peak hours. |
Travel Tips
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Train BookingUse the GWR website to book your journey to London Paddington.
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London TransportUse an Oyster card or contactless payment for the Tube.
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ParkingAvoid driving in central London due to the Congestion Charge.
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WalkingLondon is best explored by walking and using public transport.
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BookingBook attractions in advance to avoid long queues.
Safety Tips
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TrafficLondon traffic is heavy; use the train for reliability.
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PickpocketsBe vigilant in crowded tourist areas and on the Tube.
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EmergencyDial 999 for emergency services.
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NavigationDownload a city map app for easy navigation.
People Also Ask
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Is there a direct train?No, you must change at Cardiff or Swansea.
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How long is the drive?It takes about 5 hours via the M4.
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Is London worth visiting?Yes, it is a global city with endless things to do.
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Are there buses?National Express operates long-distance coaches to London.
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What is the best way to travel?Train is the most efficient and comfortable option.
Quick Info
- From Haverfordwest, Wales, United Kingdom
- To London, Greater London, United Kingdom
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Modes
Best Time to Travel
Spring and Autumn for pleasant city exploration.
Things to Do in London
1
British Museum
Home to a vast collection of world art and artifacts. Entry is free.
2
Tower of London
A historic castle and former prison. It houses the Crown Jewels.
3
London Eye
A giant observation wheel offering panoramic views of the city.
4
Buckingham Palace
The official residence of the monarch. Watch the Changing of the Guard.
Tags
Haverfordwest to London
M4 motorway
London travel
Train to London
Driving to London
Haverfordwest transport
Wales to London
Paddington Station
