Cardiff to Derry Road Trip: Best Stops, Tips & Guide

The route from Cardiff to Derry spans approximately 380 miles (610 km) and takes around 8–9 hours of driving, excluding ferry crossings from Holyhead to Dublin. This road trip crosses two nations: from the Welsh capital through the heart of England and into Northern Ireland via the Irish Sea.

A notable quirk: the A470 from Cardiff to Llandudno is known as the “spine of Wales,” but for this route you'll head east on the M4/A449 before cutting north. The highlight is the ferry from Holyhead to Dublin (3.5 hours), offering stunning views of the Irish Sea.

Start at Cardiff Castle (CF10 3RB) and end at Derry's historic city walls (BT48 6PL). Use the M4, A449, A5, M54, A5, A55, and finally the Holyhead ferry to Dublin Port, then the M1 to Derry.

Key milestones: Severn Bridge (M4), Shrewsbury (A5), Snowdonia views (A55), Holyhead ferry terminal, Dublin Port, and then the scenic N2/M1 to Derry.

Fuel costs for a standard car average £60–80 for the Welsh/English portion, plus €40–60 in Ireland. Petrol stations are frequent along the M4 and A5, but after Shrewsbury, spacing increases.

For the ferry, book ahead on Stena Line or Irish Ferries (prices £50–100 each way). Drive-on, drive-off is straightforward. Allow 45 minutes before departure for check-in.

Road types: The M4/A449 are dual carriageway; the A5 is mostly single-carriageway through rural Wales. The A55 expressway along the North Wales coast is excellent. In Ireland, the M1 to Derry is high-quality motorway.

Tolls: Severn Bridge toll is £1.80 (free since 2018? Check current status). No other tolls on the Welsh route. In Ireland, the M1 has a barrier-free toll (pay online within 24 hours).

Fatigue management: Plan breaks every 2 hours. Good rest stops include Chirk Castle (A5), a National Trust site with gardens; the A55 Llanfairpwll services offer a good rest area with a unique name photo op.

Safety: The A5 through Wales has narrow sections and sharp bends; drive with caution, especially in rain. In Ireland, the M1 is well-lit, but single-carriageway N-roads require attention.

Family-friendly stops include the Welsh Mountain Zoo near Colwyn Bay (A55) and the Titanic Belfast museum (slight detour off M1 at Belfast). Also consider the Marble Arch Caves in County Fermanagh for a kid-friendly adventure.

Pet-friendly stops: Many hotels along the route accept pets. The ferry allows pets in kennels or on board during winter. Rest areas with grassy patches are common at motorway services.

From Cardiff, the flat Severn Estuary gives way to the rolling hills of the Welsh Marches. The Brecon Beacons loom to the north, but you stay east on the A49. After Shrewsbury, the landscape opens into the pastoral Shropshire hills.

As you approach the A55, the Snowdonia National Park appears on the left, with peaks like Tryfan and Snowdon. The A55 hugs the coast near Conwy, offering glimpses of medieval castles.

On the Irish side, the M1 cuts through the Boyne Valley, with the Hill of Tara and Newgrange nearby (a detour to the UNESCO site is worthwhile). Near Derry, the landscape becomes more rugged with the Sperrin Mountains to the west.

Local commerce: In Holyhead, grab a last Welsh cake; near Dublin, stop at the Malahide Castle farmers market; in Derry, explore the Bogside murals and shops on Shipquay Street.