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Cheap flights from Belfast Intl Airport to Dublin from £40

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
9 May — 16 May1
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 9 April 2026.

Wed 6/507:30
BFS
-
DUB
1 stop7h 20m
Multiple Airlines
Wed 13/510:05
DUB
-
BFS
1 stop5h 10m
Multiple Airlines
Deal found 8/4£71
Wed 6/507:30
BFS
-
DUB
1 stop5h 00m
Multiple Airlines
Thu 7/523:50
DUB
-
BFS
1 stop8h 40m
Multiple Airlines
Deal found 7/4£73
Thu 14/512:45
BFS
-
DUB
1 stop7h 45m
Multiple Airlines
Thu 21/513:00
DUB
-
BFS
1 stop9h 20m
Multiple Airlines
Deal found 9/4£75
Fri 15/508:55
BFS
-
DUB
1 stop8h 25m
Multiple Airlines
Mon 18/520:35
DUB
-
BFS
1 stop13h 25m
Multiple Airlines
Deal found 8/4£75
Thu 14/509:15
BFS
-
DUB
1 stop7h 55m
Multiple Airlines
Mon 18/521:10
DUB
-
BFS
1 stop12h 50m
Multiple Airlines
Deal found 7/4£76
Fri 8/519:20
BFS
-
DUB
1 stop3h 40m
Multiple Airlines
Mon 11/520:35
DUB
-
BFS
1 stop13h 25m
Multiple Airlines
Deal found 5/4£78
Wed 29/405:55
BFS
-
DUB
1 stop4h 30m
Multiple Airlines
Mon 4/506:55
DUB
-
BFS
1 stop8h 25m
Multiple Airlines
Deal found 5/4£80
Sun 24/522:00
BFS
-
DUB
1 stop25h 35m
Multiple Airlines
Sun 31/522:20
DUB
-
BFS
1 stop20h 05m
Multiple Airlines
Deal found 9/4£86

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 9 April 2026.

Round-trip from

£71

One-way from

£40
6/5-13/5
  • 6/5-13/5
  • 2 total stops
  • 12h 30m total
  • Belfast to Dublin
Search Deals
18/6
  • 18/6
  • 1 total stop
  • 11h 10m 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 9 April 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 6/5

07:30-14:50

1 stop7h 20m

Dublin

Wed 13/5

10:05-15:15

1 stop5h 10m

£71

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 6/5

07:30-12:30

1 stop5h 00m

Dublin

Thu 7/5

23:50-08:30

1 stop8h 40m

£73

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 14/5

09:15-17:10

1 stop7h 55m

Dublin

Mon 18/5

21:10-10:00

1 stop12h 50m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 4/6

12:45-18:10

1 stop5h 25m

Dublin

Mon 8/6

12:30-21:30

1 stop9h 00m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 15/5

08:55-20:30

1 stop11h 35m

Dublin

Mon 18/5

20:35-10:00

1 stop13h 25m

£78

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

19:20-23:00

1 stop3h 40m

Dublin

Mon 11/5

20:35-10:00

1 stop13h 25m

£78

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 29/4

05:55-10:25

1 stop4h 30m

Dublin

Mon 4/5

06:55-15:20

1 stop8h 25m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sun 24/5

22:00-23:35

1 stop25h 35m

Dublin

Sun 31/5

22:20-18:25

1 stop20h 05m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 21/5

12:45-20:30

1 stop7h 45m

Dublin

Thu 28/5

09:20-22:20

2 stops13h 00m

£93

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 23/5

20:15-07:55

1 stop11h 40m

Dublin

Sat 30/5

06:40-16:30

1 stop9h 50m

£103

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 15 resultsSorted by cheapest first
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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
Arklow
Tullamore
Cavan
Portmarnock
Dundalk
Wicklow
Enniscorthy
Bray
Mullingar
Drogheda
Malahide
Kildare
Maynooth
Swords
Carlingford

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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 City to Dublin flights
Belfast Intl to Cork flights
Belfast City to Cork flights
Belfast Intl to Shannon flights
Belfast City to Shannon flights

Fly with Cheapflights

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

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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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