Cheap flights from Belfast to Dublin

Dublin sits far enough north that daylight is short from late autumn through winter, and the weather stays unsettled in any season — spring tends to bring the longest, brightest days. May is the cheapest month on this route, and the price calendar covers October through May plus July, so you can compare fares across the colder months too. School holidays and the Christmas period are the times to book early.

Every option involves a connection, so start with the routing: KLM Royal Dutch Airlines, British Airways and its CityFlyer arm, and Loganair Limited all add a stop in another city, which stretches the journey well beyond the actual flying time. Aer Lingus and Emerald Airlines operate the route in their own right, while Easyjet is the low-cost choice — expect its fares to cover less, with checked baggage and extras priced separately. Full-service carriers typically include more in the base fare, so compare what each ticket actually contains.

Before you land, sort out how you'll get into town: Dublin airport sits outside the city and is linked to the centre by regular buses, which most travellers use. It's Ireland's capital airport, so allow time at arrivals for passport control when coming from outside the common travel area. Have your onward transport decided in advance — queues for buses can build up at peak times.

Currency

EUR (€)

Power sockets

Type G · 230 V

Language

Irish, English

Emergency number

112

Calling code

+353

Internet domain

.ie

EU / Schengen

EU member

Population of Dublin

593 k (2022)

Time zone

UTC+00 (Europe/Dublin)

Country facts: Wikidata

• Confirm your departure is from George Best City airport, since Belfast's airports are easy to mix up in searches.
• Check whether checked baggage is included, especially on Easyjet fares where it usually is not.
• If your connection is on a separate ticket, leave enough time in case the first flight is late.
• Check what documents Ireland requires for your nationality before you book.
• Compare May against the other months on the calendar, since fares shift with the season.