How long is the drive?

It takes approximately 7 hours.

Is there a direct train?

No, you must change at least once.

What is the best route?

The M6 to M5 is the most direct road route.

No, there are no tolls on this route.

There are no practical commercial flights from Caernarfon.

Caernarfon

Plymouth

Train Driving

Caernarfon to Plymouth

Updated: 28 May 2026

The journey from Caernarfon to Plymouth is a long-distance trek covering approximately 500 kilometers. By car, you will follow the A55, M6, and M5, which provides a direct route into the South West. Rail travel requires a bus to Bangor, then trains via Chester, Birmingham, and Bristol to reach Plymouth station. This journey takes you from the Welsh coast to the historic port city of Plymouth. Expect a travel time of 7 to 9 hours.

Total Distance: 500 km driving distance, 400 km straight-line air distance.

Fastest Way

Driving via the A55, M6, and M5, taking roughly 7 hours.

Cheapest Way

Advance train tickets booked via Great Western Railway.

Compare Caernarfon to Plymouth Routes

	Train Connecting	Driving Direct
Duration	8 hours 30 mins	7 hours
Avg Price	80-180 GBP	80-120 GBP fuel
Operator	Transport for Wales and Great Western Railway	N/A
Route	Caernarfon (bus) to Bangor, Bangor to Chester, Chester to Plymouth	A55, M6, M5, A38
Tip	Great Western Railway trains are a reliable way to reach Plymouth.	The M5 can be congested; check traffic reports before you leave.

Travel Tips

Train Connections
Ensure you have enough time for your connection at Chester station.
Parking
Use the Drake Circus or Theatre Royal car parks for city center access.
Bus Timing
The T2 bus from Caernarfon is the best way to reach the rail network.
Ticket Booking
Book your train tickets online to avoid queues at the station.
Navigation
Use a GPS to navigate the city center as it can be complex.