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Cheapest cached fares Cardiff → Belfast; direct flights available (e.g. EI). · Based on 8 fares found by travellers in the last 48h
Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Best value: Sep — fares from €56 and ~15°C daytime.
Flights from Cardiff to Belfast start around €56 (direct flights available). Range seen recently: €56–136, based on 8 fares found by travellers.
Fares found by travellers in the last 48 hours — refreshed daily.
In Sep, Belfast typically sees ~15°C daytime highs and 19 rainy days.
3★+ hotels from €71/night (34 hotels sampled, ~3 weeks out).
Top-rated tours and tickets from €65 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
Belfast (Irish: Béal Feirste) is the capital and largest city of Northern Ireland. Most of it historically lay in County Antrim west of the River Lagan, with about a third on the east bank in County Down, but it's always been governed as a separate metropolis, with a population in 2024 of about 671,000. It's had a troubled history but is nowadays safe to visit and has the best-developed visitor facilities in Northern Ireland.
Guide content from Wikivoyage contributors (CC BY-SA).
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Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-09-02. Some links earn Stayonomy a commission at no cost to you.