Find flights
When to book
FAQs

Cheap flights from Belfast Intl Airport to Dublin from £46

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
11 Mar — 18 Mar1
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 February 2026.

Thu 19/316:35
BFS
-
DUB
1 stop5h 00m
Multiple Airlines
Mon 23/311:30
DUB
-
BFS
1 stop7h 25m
Multiple Airlines
Deal found 9/2£82
Wed 18/315:45
BFS
-
DUB
1 stop4h 20m
Multiple Airlines
Wed 25/306:45
DUB
-
BFS
1 stop3h 35m
Multiple Airlines
Deal found 7/2£83
Tue 24/305:45
BFS
-
DUB
1 stop4h 05m
Multiple Airlines
Tue 31/306:30
DUB
-
BFS
1 stop5h 50m
Multiple Airlines
Deal found 7/2£84
Sat 7/323:10
BFS
-
DUB
1 stop8h 40m
Multiple Airlines
Sat 14/321:45
DUB
-
BFS
1 stop10h 40m
Multiple Airlines
Deal found 7/2£87
Thu 12/314:00
BFS
-
DUB
1 stop9h 45m
Multiple Airlines
Fri 13/322:00
DUB
-
BFS
1 stop8h 55m
Multiple Airlines
Deal found 7/2£88
Sat 21/306:00
BFS
-
DUB
1 stop10h 30m
Multiple Airlines
Mon 23/305:45
DUB
-
BFS
1 stop13h 10m
Multiple Airlines
Deal found 7/2£95
Fri 20/318:00
BFS
-
DUB
1 stop5h 05m
Multiple Airlines
Sun 22/306:30
DUB
-
BFS
1 stop5h 30m
Multiple Airlines
Deal found 6/2£97

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 February 2026.

Round-trip from

£82

One-way from

£46
19/3-23/3
  • 19/3-23/3
  • 2 total stops
  • 12h 25m total
  • Belfast to Dublin
Search Deals
25/3
  • 25/3
  • 1 total stop
  • 5h 05m 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 February 2026.
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

Thu 19/3

16:35-21:35

1 stop5h 00m

Dublin

Mon 23/3

11:30-18:55

1 stop7h 25m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 26/3

14:00-23:45

1 stop9h 45m

Dublin

Thu 2/4

07:30-15:20

1 stop7h 50m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 18/3

15:45-20:05

1 stop4h 20m

Dublin

Wed 25/3

06:45-10:20

1 stop3h 35m

£83

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 24/3

05:45-09:50

1 stop4h 05m

Dublin

Tue 31/3

06:30-12:20

1 stop5h 50m

£84

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 7/3

23:10-07:50

1 stop8h 40m

Dublin

Sat 14/3

21:45-08:25

1 stop10h 40m

£87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 12/3

14:00-23:45

1 stop9h 45m

Dublin

Fri 13/3

22:00-06:55

1 stop8h 55m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 21/3

06:00-16:30

1 stop10h 30m

Dublin

Mon 23/3

05:45-18:55

1 stop13h 10m

£95

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 25/3

08:50-13:55

1 stop5h 05m

£46

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 15/4

07:30-16:00

1 stop8h 30m

£46

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 22/5

17:05-23:59

1 stop6h 54m

£49

Flights are sorted by cheapest return flights first.

Deals found on 8/2

Showing 1-10 of 18 results
1
2

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
Tullamore
Arklow
Cavan
Portmarnock
Dundalk
Wicklow
Enniscorthy
Bray
Mullingar
Drogheda
Kildare
Malahide
Maynooth
Carlingford
Swords
Naas

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.