Train
Driving
Caernarfon to Plymouth
Updated: 30 May 2026
The journey from Caernarfon to Plymouth covers 450 km. The most efficient route is via the A55, M56, M6, M5, and A38. This journey takes you from the Welsh coast through the heart of England into the port city of Plymouth. It is a significant cross-country trip requiring careful planning. Expect a 5.5-hour drive depending on traffic.
Total Distance: Driving distance 450 km, straight-line air distance 350 km.
Fastest Way
Driving is the fastest option.
Cheapest Way
Driving is the most cost-effective for groups.
Compare Caernarfon to Plymouth Routes
|
Connecting
|
Direct
|
|
|---|---|---|
| Duration | 8 hours | 5 hours 30 mins |
| Avg Price | £140 - £250 | £70 - £100 fuel |
| Operator | Transport for Wales and GWR | Personal Vehicle |
| Route | Caernarfon to Bangor, then train to Plymouth. | A55, M56, M6, M5, A38. |
| Tip | Book in advance for cheaper tickets. | The M5 can be very busy. |
Travel Tips
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DrivingCheck for traffic on the M5.
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ParkingPlymouth has many car parks.
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WalkingThe city center is walkable.
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BookingNo booking needed for driving.
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WeatherPlymouth can be rainy.
Safety Tips
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DrivingStay alert on the M5.
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GeneralKeep your belongings safe.
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EmergencyDial 999 for help.
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CityBe aware of your surroundings.
People Also Ask
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Is it a long trip?Yes, it is about 5.5 hours.
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Are there trains?Yes, via Bangor.
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Is parking easy?Yes, plenty of options.
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Can I cycle?Not practical for this distance.
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Is it scenic?Yes, especially near the coast.
Quick Info
- From Caernarfon, Wales, United Kingdom
- To Plymouth, Devon, United Kingdom
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Modes
Best Time to Travel
Spring and Autumn for mild weather.
Things to Do in Plymouth
1
Plymouth Hoe
A historic area.
2
National Marine Aquarium
A major aquarium.
3
Barbican
A historic area.
4
Smeaton's Tower
A historic lighthouse.
Tags
Caernarfon to Plymouth
driving to Plymouth
A55 and M5
Wales to England
Plymouth travel
long distance travel
Gwynedd to Devon
travel guide
