Cheap Flights from Belfast to Dublin

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Compare Belfast to Dublin flight deals

Find the cheapest month or even day of the year to fly to Dublin

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Flight deals from Belfast to Dublin

Looking for a cheap last-minute deal or the best return flight from Belfast to Dublin? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Belfast to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Belfast to Dublin flights are currently cheapest in August.

Belfast to Dublin: Alternative routes

Compare routes from Belfast to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Belfast to Dublin: Flight information

The things to know before you go.
Cheapest flight foundR 1,318
Cheapest month to flyAugust

Finding cheap flights from Belfast to Dublin: Frequently asked questions

The best price we found for a return flight from Belfast to Dublin is R 2,627. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Belfast to Dublin. But we found flights with one stop from R 2,627.
As of May 2025, there are no flights flying from Belfast to Dublin.
The cheapest month to fly from Belfast to Dublin is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Dublin Airport on Sunday, 24 August 2025.
No airlines currently offer direct flights between Belfast and Dublin Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Dublin is Ryanair .

Flying from Belfast to Dublin Airport (DUB): what you need to know

  • Get your holiday planning started by considering where you'll board your flight from Belfast to Dublin Airport (DUB). Belfast International Airport (BFS) and George Best Belfast City Airport (BHD) are Belfast's main airports.

  • Belfast and Dublin (where Dublin Airport is located) share the UTC+0 timezone. That means you won't need to change your watch when you land.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to board your flight from Belfast to DUB.

  • You'll likely experience longer lines during popular months such as August and other peak seasons. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a smart move.

Airports in Belfast

Belfast International Airport (BFS)

  • Stopovers are the ideal opportunity to take a break from travelling — and maybe even visit a new city. When browsing flights from Belfast to DUB leaving from Belfast International Airport (BFS), uncheck the 'Direct flights only' box to see where you can stop along the way. Top options include:

    • Glasgow International Airport (GLA)

    • Birmingham International Airport (BHX)

    • Newcastle International Airport (NCL)

  • The distance from central Belfast to BFS is around 32 kilometres. Use travel apps like Google Maps for the quickest route, whether you're driving or taking public transport.

  • Booked an early flight from Belfast to Dublin Airport? Avoid rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these stays near Belfast International Airport:

George Best Belfast City Airport (BHD)

  • Break up your flight from Belfast to Dublin Airport with a stop so you can recharge or cross another place off your list. Some popular stopovers between George Best Belfast City Airport and DUB are:

    • Liverpool John Lennon Airport (LPL)

    • Manchester Airport (MAN)

    • Birmingham International Airport (BHX)

  • On public transport, you can travel from central Belfast to BHD in about 22 minutes. The airport is roughly 8 kilometres away, and making the trip by car will take approximately 12 minutes.

  • It's your holiday, so why not book an extra night away? Consider kicking back in one of these hotels near George Best Belfast City Airport the day before your flight from Belfast to DUB:

About Dublin Airport (DUB)

Getting from Dublin Airport (DUB) to central Dublin

  • From Dublin Airport, Dublin is approximately 21 kilometres away. It takes around 29 minutes to get to the centre driving.

  • When travelling on public transport, expect a journey of roughly 2 hours and 9 minutes.

How to find the cheapest flights from Belfast to Dublin Airport (DUB)

  • For a one-way ticket from Belfast to Dublin Airport, R 1,318 is the cheapest price. You can also book a return flight from just R 2,627. These are the lowest fares right now but may change based on availability.

  • To find cheap tickets from Belfast to DUB, book as early as possible. Airlines typically offer lower prices when flights are first released.

  • The 'Whole month' tool shows you the cheapest tickets from Belfast to Dublin Airport across the month. It's an easy way to snap up a bargain if your plans are flexible.

  • Set up a Price Alert for cheap tickets from Belfast to DUB. You don't need to check every day to see if prices have dropped. We'll update you as soon as there's a change in price.

  • Customise your journey by applying filters. Choose the number of stops, duration, and departure and arrival times to find the ideal flight from Belfast to Dublin Airport. You can also sort the results to see the 'Best,' 'Cheapest' or 'Fastest' options first.

The best time to fly from Belfast to Dublin Airport (DUB)

  • It's time to pick your dates for your flight from Belfast to Dublin Airport. August is the most popular month to travel to Dublin. If you prefer a quieter atmosphere, go in February.

  • Schedule your flight from Belfast to DUB for July if you're eager to visit the city during its warmest month. Expect temperatures in Dublin to range from 10ºC to 20ºC.

  • January sees average temperatures of between 1ºC and 9ºC. Search for cheap flights from Belfast to Dublin Airport around that time if you want to travel in cooler conditions.

More about Dublin

  • After locking in your flight from Belfast to Dublin Airport, think about where to rest your head in this city. Make one of these accommodation options your base for exploring Dublin:

  • Every great journey has to include a little sightseeing. Guinness Storehouse, Trinity College Library and Dublin Castle are attractions you won't want to skip in Dublin.

Complete your Dublin trip with a car rental

  • Hop behind the wheel of one of our car rentals in Dublin and see the city on your own terms. Easily compare rates from trusted rental companies in one go after booking your hotel and cheap flights from Belfast to Dublin Airport.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.