How long is the ferry?

The crossing takes approximately 3 hours 15 minutes.

Do I need a passport?

A photo ID is highly recommended for travel to Northern Ireland.

Is there a direct train?

No, you must take a ferry from Holyhead.

What is the best way to travel?

Driving to Holyhead and taking the ferry is the most practical method.

No, there are no tolls on the route to Holyhead.

Caernarfon

Belfast

Driving Ship

Caernarfon to Belfast

Updated: 28 May 2026

The journey from Caernarfon to Belfast is a unique combination of road and sea travel. You will drive approximately 45 kilometers to the port of Holyhead, then board a Stena Line ferry to Belfast. The ferry crossing takes about 3 hours and 15 minutes. This route is the most practical way to reach Northern Ireland from North Wales. Expect a total travel time of around 6 hours including port check-in.

Total Distance: 45 km driving to port, 200 km sea crossing.

Fastest Way

Driving to Holyhead and taking the fast ferry, taking 4 hours total.

Cheapest Way

Foot passenger ticket on the Stena Line ferry.

Compare Caernarfon to Belfast Routes

	Driving Direct	Ship Direct
Duration	45 mins to port	3 hours 15 mins
Avg Price	15-25 GBP fuel	30-80 GBP
Operator	N/A	Stena Line
Route	A487, A55 to Holyhead	Holyhead to Belfast Port
Tip	Arrive at the port at least 60 minutes before your ferry departure.	Book a cabin if you are taking the overnight ferry for a better rest.

Travel Tips

Ferry Booking
Book your ferry in advance to secure the best rates and ensure space for your vehicle.
Passport
While not always required for UK citizens, it is recommended to carry a photo ID.
Port Arrival
Check the Stena Line website for real-time ferry status and port updates.
Sea Sickness
If you are prone to sea sickness, take medication before boarding the ferry.
Currency
Northern Ireland uses the British Pound (GBP).

Safety Tips

Ferry Safety
Listen to the safety briefing upon boarding the ferry.
Driving
The A55 to Holyhead is a major road; drive carefully in wet conditions.
Personal Belongings
Keep your valuables with you on the ferry; do not leave them in your car.
Emergency
In case of an emergency on the ferry, contact the crew immediately.