Train
Driving
Street to Cardiff
Updated: 30 May 2026
The journey from Street to Cardiff spans approximately 85 kilometers. You can drive via the M5 and M4 motorways, crossing the Prince of Wales Bridge. Alternatively, take a bus to Castle Cary station for a direct train to Cardiff Central. The route offers scenic views of the Severn Estuary. Expect travel times of roughly 90 minutes by car. Public transport requires a connection in Somerset before reaching the main rail line.
Total Distance: 85 km driving distance, 65 km air distance.
Fastest Way
Driving via M5 and M4 is the fastest method at 90 minutes.
Cheapest Way
Driving is the cheapest if sharing fuel costs, otherwise advance train tickets.
Compare Street to Cardiff Routes
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Connecting
|
Direct
|
|
|---|---|---|
| Duration | 3 hours | 1 hour 30 mins |
| Avg Price | 25-45 GBP | 15-25 GBP |
| Operator | Great Western Railway | N/A |
| Route | Bus to Castle Cary, then train to Cardiff Central. | A39 to M5, then M4 via Prince of Wales Bridge. |
| Tip | Book tickets in advance via GWR website for cheaper fares. | Check for tolls on the M4 Prince of Wales Bridge if applicable. |
Travel Tips
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Advance BookingAlways book train tickets at least two weeks early.
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Traffic AlertsCheck M4 traffic reports before departing Street.
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ParkingUse the St David's shopping center car park in Cardiff.
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Bus ConnectionsCheck the First Bus timetable for Street to Castle Cary.
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CurrencyWales uses the British Pound Sterling.
Safety Tips
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Motorway SafetyKeep distance on the M4 during heavy rain.
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Station SecurityKeep luggage close at Cardiff Central station.
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Night TravelAvoid walking alone in isolated areas at night.
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EmergencyDial 999 for any emergency services.
People Also Ask
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Is there a direct train?No, you must connect via Castle Cary or Bristol.
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How long is the drive?Approximately 90 minutes depending on traffic.
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Are there tolls?The Severn Bridge tolls were removed.
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Best time to travel?Mid-morning to avoid rush hour traffic.
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Is Cardiff walkable?Yes, the city center is compact and pedestrian-friendly.
Quick Info
- From Street, Somerset, United Kingdom
- To Cardiff, Wales, United Kingdom
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Modes
Best Time to Travel
May to September for clear views across the Severn Bridge.
Things to Do in Cardiff
1
Cardiff Castle
Explore the medieval fortress located in the city center. It features elaborate Victorian Gothic interiors.
2
National Museum Cardiff
View world-class art and natural history collections. Entry is free for the public.
3
Cardiff Bay
Walk around the waterfront area. It offers numerous restaurants and the Senedd building.
4
Bute Park
Enjoy 130 acres of landscaped gardens. It is perfect for a relaxing afternoon walk.
Tags
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M4 route to Wales
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Somerset transport links
