Is there a train from Caernarfon to Porthmadog?

No, there is no direct rail link between these two towns.

How long is the bus ride?

The T2 bus service typically takes 55 minutes.

Are there taxis available?

Yes, local taxi firms operate in Caernarfon for private transfers.

Yes, the A487 offers beautiful views of the Snowdonia mountains.

Can I cycle this route?

Yes, but the A487 is a busy road; use designated cycle paths where possible.

Caernarfon

Porthmadog

Bus Driving

Caernarfon to Porthmadog

Updated: 29 May 2026

The journey from Caernarfon to Porthmadog covers approximately 35 kilometers along the scenic A487 coastal road. You will pass through the historic village of Penygroes and the foothills of the Snowdonia National Park. Public transport is primarily served by the T2 TrawsCymru bus service. The route offers stunning views of the Welsh coastline and mountain ranges. Expect a travel time of roughly 45 to 55 minutes depending on traffic conditions.

Total Distance: 35 km driving distance; 28 km straight-line air distance.

Fastest Way

Driving your own vehicle takes 45 minutes, saving 10 minutes over the bus.

Cheapest Way

Bus via TrawsCymru is the most cost-effective method at approximately 6 GBP.

Compare Caernarfon to Porthmadog Routes

	Bus Direct	Driving Direct
Duration	55 mins	45 mins
Avg Price	6 GBP	5 GBP
Operator	TrawsCymru	N/A
Route	T2 service from Caernarfon Bus Station to Porthmadog Park.	A487 south through Penygroes and Tremadog.
Tip	Use the TrawsCymru app for real-time bus tracking.	Watch for speed cameras in village zones like Llanwnda.

Travel Tips

Bus Passes
If you are a resident, use your Welsh concessionary travel card for free bus travel.
Traffic
Avoid the A487 during peak school run hours to prevent delays in Penygroes.
Parking
Porthmadog has several pay-and-display car parks near the harbour.
Weather
Always carry a waterproof jacket as coastal weather changes rapidly.
Navigation
Download offline maps as mobile signal can be weak in the Snowdonia valleys.

Safety Tips

Road Conditions
The A487 is narrow in sections; drive with caution during heavy rain.
Pedestrians
Be mindful of hikers crossing the road near Snowdonia trailheads.
Emergency
Dial 999 for emergency services if you encounter a serious road incident.
Lighting
Ensure your headlights are functional as many rural roads lack street lighting.