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Cheap flights from Belfast Intl Airport to Dublin from £55

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Dublin
Explore the most affordable flight options available from Belfast Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Sun 21/1223:05BFS - DUB
1 stop8h 50mMultiple Airlines
Fri 26/1216:15DUB - BFS
1 stop7h 10mMultiple Airlines
Deal found 3/12£100
Wed 31/1207:20BFS - DUB
1 stop28h 55mMultiple Airlines
Wed 7/120:00DUB - BFS
1 stop13h 20mMultiple Airlines
Deal found 3/12£112
Sat 27/1207:20BFS - DUB
1 stop9h 05mMultiple Airlines
Mon 5/121:00DUB - BFS
1 stop3h 25mMultiple Airlines
Deal found 3/12£114
Wed 17/1213:25BFS - DUB
1 stop6h 40mMultiple Airlines
Sat 20/1219:25DUB - BFS
1 stop11h 20mMultiple Airlines
Deal found 3/12£133

Find flight deals from Belfast Intl to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 December 2025.

Round-trip from

£82

One-way from

£55
17/1-24/1
  • 17/1-24/1
  • 2 total stops
  • 11h 45m total
  • Belfast to Dublin
Search Deals
13/12
  • 13/12
  • 1 total stop
  • 26h 45m total
  • Belfast to Dublin
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Dublin that are best for you.

Fly from

Belfast Intl

Fly to

Dublin

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 17/1

13:10-17:55

1 stop4h 45m

Dublin

Sat 24/1

15:00-22:00

1 stop7h 00m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 15/1

06:15-17:50

1 stop11h 35m

Dublin

Mon 19/1

09:45-21:55

1 stop12h 10m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 23/1

18:00-23:05

1 stop5h 05m

Dublin

Wed 28/1

08:15-17:55

1 stop9h 40m

£92

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 15/1

16:35-21:35

1 stop5h 00m

Dublin

Thu 22/1

10:05-16:10

1 stop6h 05m

£94

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sun 21/12

23:05-07:55

1 stop8h 50m

Dublin

Fri 26/12

16:15-23:25

1 stop7h 10m

£100

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 1/1

17:15-22:25

1 stop5h 10m

Dublin

Thu 8/1

19:45-07:25

1 stop11h 40m

£107

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 31/12

07:20-12:15

1 stop28h 55m

Dublin

Wed 7/1

20:00-09:20

1 stop13h 20m

£112

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 27/12

07:20-16:25

1 stop9h 05m

Dublin

Mon 5/1

21:00-00:25

1 stop3h 25m

£114

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 17/12

13:25-20:05

1 stop6h 40m

Dublin

Sat 20/12

19:25-06:45

1 stop11h 20m

£133

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 23/3

18:50-07:50

1 stop13h 00m

£55

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 17 results
1
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Best time to book a flight from Belfast Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Belfast Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from Belfast Intl?

    Most people fly into Dublin (DUB) if they book a flight to Dublin from Belfast Intl. On average, Dublin has 0 inbound flights from Belfast Intl per day from 0 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

  • Can I find deals for flights from Belfast Intl to Dublin that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Dublin.

  • Can I find deals for business class flights from Belfast Intl to Dublin?

    Yes. Cheapflights offers flight deals from Belfast Intl to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Athlone
Wicklow
Cavan
Tullamore
Arklow
Drogheda
Malahide
Portmarnock
Dundalk
Enniscorthy
Mullingar
Bray
Kildare
Maynooth
Carlingford
Swords
Naas

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast Intl to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Cork flights
Belfast City to Dublin flights
Belfast City to Cork flights
Belfast Intl to Shannon flights
Belfast City to Shannon flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast Intl to Dublin?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dublin from Belfast Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Dublin?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast Intl to Dublin for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Belfast Intl to Dublin with no change fees?

Need flexible booking options for your flight to Dublin from Belfast Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Belfast Intl to Dublin become cheaper?

Yes! Start tracking prices for Belfast Intl to Dublin flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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