Train
Driving
Radstock to Cardiff
Updated: 30 May 2026
The journey from Radstock to Cardiff covers approximately 75 kilometers. You can drive via the A367 and M4 motorway, crossing the Prince of Wales Bridge. Alternatively, take a bus to Bath Spa station and board a Great Western Railway train to Cardiff Central. The route offers scenic views of the Mendip Hills and the Severn Estuary. Expect a travel time of roughly 90 minutes by road under normal traffic conditions.
Total Distance: 75 km driving distance; 60 km straight-line air distance.
Fastest Way
Driving via the M4 is the fastest method, typically taking 90 minutes.
Cheapest Way
Driving is the cheapest option if traveling with passengers, costing roughly 15 GBP in fuel.
Compare Radstock to Cardiff Routes
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Connecting
|
Direct
|
|
|---|---|---|
| Duration | 2 hours 15 mins | 1 hour 30 mins |
| Avg Price | 25-45 GBP | 15-20 GBP in fuel |
| Operator | Great Western Railway | N/A |
| Route | Bus to Bath Spa, then train to Cardiff Central. | A367 to A46, then M4 motorway via Prince of Wales Bridge. |
| Tip | Book tickets in advance to secure cheaper fares. | Check traffic on the M4 near Newport before departing. |
Travel Tips
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Bridge TollsThe Prince of Wales Bridge is now toll-free for all vehicles.
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Train BookingUse the Trainline app to monitor live departures from Bath Spa.
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ParkingUse the St David's Shopping Centre car park for central access.
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Peak TimesAvoid M4 travel between 7:30 AM and 9:00 AM to miss congestion.
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Local BusThe 173 bus service connects Radstock to Bath Spa station.
Safety Tips
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WeatherHigh winds can affect driving on the Severn bridges.
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EmergencyDial 999 for police, fire, or ambulance services.
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VisibilityEnsure headlights are on during heavy rain on the M4.
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Road SafetyKeep a safe distance from heavy goods vehicles on the motorway.
People Also Ask
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Is there a direct train from Radstock?No, Radstock does not have an active railway station; you must travel to Bath Spa first.
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How long is the drive?The drive typically takes 90 minutes depending on traffic.
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Are there tolls?No, the Severn bridges are currently toll-free.
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What is the best way to travel?Driving is the most convenient method for this specific route.
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Is Cardiff walkable?Yes, the city centre is compact and highly pedestrian-friendly.
Quick Info
- From Radstock, Somerset, United Kingdom
- To Cardiff, Wales, United Kingdom
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Modes
Best Time to Travel
May to September for clear views of the Severn Estuary.
Things to Do in Cardiff
1
Cardiff Castle
Explore the medieval fortress located in the heart of the city. It features Roman walls and Victorian Gothic interiors.
2
National Museum Cardiff
Visit this free museum housing world-class art and natural history collections. It is located in the Cathays Park area.
3
Cardiff Bay
Walk around the waterfront area which features the Senedd and the Wales Millennium Centre. It is a hub for dining and entertainment.
4
Bute Park
Enjoy a stroll through this expansive parkland situated behind the castle. It offers beautiful river walks along the Taff.
Tags
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