Is Caernarfon worth visiting?

Yes, it is home to one of the most famous castles in the world.

How long is the journey?

It takes about 8 hours with connections.

Are there direct trains?

No, you must change at least twice and take a bus.

What is the best way to travel?

Train and bus is the most reliable public transport option.

No, there is an entry fee for the castle.

King's Lynn

Caernarfon

Train

King's Lynn to Caernarfon

Updated: 28 May 2026

The journey from King's Lynn to the historic town of Caernarfon involves a train to Bangor followed by a short bus ride. The total distance is approximately 380 kilometers. Rail is the most practical method for the long-distance portion, while the local bus service (typically the 5C) connects Bangor station to Caernarfon. Driving is also an option, following the A47, M6, and A55. The total travel time is roughly 8 hours. Caernarfon is famous for its massive medieval castle, which is a UNESCO World Heritage site and a major landmark in North Wales.

Total Distance: 380 km driving distance, 320 km straight-line air distance.

Fastest Way

Driving via the A55 expressway is the fastest, taking about 7 hours.

Cheapest Way

Booking Advance train tickets and using a local bus pass is the cheapest way.

Compare King's Lynn to Caernarfon Routes

Train

Connecting

Duration

8 hours

Avg Price

£95-£200

Operator

Avanti West Coast and Transport for Wales

Route

King's Lynn to Ely, Ely to Crewe, Crewe to Bangor, then bus to Caernarfon

The bus from Bangor to Caernarfon is frequent and takes about 30 minutes.

Travel Tips

Bus Connection
The bus station in Bangor is right next to the train station.
Castle Tickets
Book your castle tickets online to avoid queues during peak season.
Railway Booking
Book your steam train tickets well in advance as they sell out quickly.
Packing
Bring a good camera for the stunning castle photos.
Local Language
You will hear Welsh spoken frequently; it is a key part of the local culture.