To reach Belfast from Llanberis, you must travel to the port of Holyhead on Anglesey. The journey involves a 45-minute drive to Holyhead, followed by a ferry crossing to Belfast Port. Stena Line operates the primary ferry service, which takes approximately 8 hours. This route is a major link between North Wales and Northern Ireland, offering both day and overnight sailings.
Total Distance: 50 km to Holyhead + 250 km ferry, 200 km straight-line air distance.
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Direct
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Direct
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| Duration | 45 mins | 8 hours |
| Avg Price | 15-25 GBP fuel | 40-120 GBP |
| Operator | N/A | Stena Line |
| Route | A4086 to A55, then A5 to Holyhead. | Holyhead Port to Belfast Port. |
| Tip | The A55 is a dual carriageway and very reliable. | Book a cabin for overnight sailings to arrive refreshed. |
May to June for calmer seas and longer daylight hours.