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Cheap flights from Belfast Intl Airport to Ireland from £45

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Ireland

Keep the following information in mind while searching for Belfast Intl to Ireland flight deals. Data was last updated 15 January 2026.

Round-trip from

£81

One-way from

£45
28/2-7/3
  • 28/2-7/3
  • 2 total stops
  • 20h 00m total
  • Belfast to Ireland
Search Deals
14/4
  • 14/4
  • 1 total stop
  • 8h 50m total
  • Belfast to Ireland
Search Deals

Find flight deals from Belfast Intl to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Ireland
Explore the most affordable flight options available from Belfast Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 January 2026.

Sat 28/208:50
BFS
-
DUB
1 stop14h 15m
Multiple Airlines
Sat 7/317:00
DUB
-
BFS
1 stop5h 45m
Multiple Airlines
Deal found 14/1£81
Fri 13/214:30
BFS
-
ORK
1 stop7h 25m
Multiple Airlines
Sun 15/218:10
ORK
-
BFS
1 stop13h 15m
Multiple Airlines
Deal found 13/1£83
Fri 13/218:00
BFS
-
DUB
1 stop5h 25m
Multiple Airlines
Mon 16/215:30
DUB
-
BFS
1 stop3h 25m
Multiple Airlines
Deal found 13/1£86
Sat 7/306:00
BFS
-
DUB
1 stop8h 25m
Multiple Airlines
Mon 9/313:30
DUB
-
BFS
1 stop4h 55m
Multiple Airlines
Deal found 13/1£88
Sat 28/208:50
BFS
-
ORK
1 stop6h 15m
Multiple Airlines
Sat 7/307:25
ORK
-
BFS
1 stop13h 05m
Multiple Airlines
Deal found 14/1£93
Sat 7/207:20
BFS
-
ORK
1 stop11h 05m
Multiple Airlines
Sun 8/222:25
ORK
-
BFS
1 stop9h 00m
Multiple Airlines
Deal found 13/1£99
Sat 28/208:50
BFS
-
DUB
1 stop11h 15m
Multiple Airlines
Mon 2/312:00
DUB
-
BFS
1 stop6h 25m
Multiple Airlines
Deal found 13/1£100
Tue 10/218:25
BFS
-
DUB
1 stop4h 40m
Multiple Airlines
Tue 17/212:25
DUB
-
BFS
1 stop7h 50m
Multiple Airlines
Deal found 13/1£100
Wed 11/221:00
BFS
-
ORK
1 stop11h 05m
Multiple Airlines
Wed 18/205:45
ORK
-
BFS
1 stop4h 35m
Multiple Airlines
Deal found 14/1£103
Tue 3/220:55
BFS
-
ORK
1 stop11h 45m
Multiple Airlines
Fri 6/221:30
ORK
-
BFS
1 stop9h 25m
Multiple Airlines
Deal found 14/1£103
Tue 10/206:30
BFS
-
ORK
1 stop8h 30m
Multiple Airlines
Tue 17/209:10
ORK
-
BFS
1 stop12h 00m
Multiple Airlines
Deal found 13/1£106
Tue 2/607:35
BFS
-
DUB
1 stop8h 50m
Multiple Airlines
Tue 9/606:05
DUB
-
BFS
1 stop3h 55m
Multiple Airlines
Deal found 14/1£124

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Ireland 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 15 January 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Ireland that are best for you.

Fly from

Belfast Intl

Fly to

Ireland

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 7/3

12:45-16:30

1 stop3h 45m

Dublin

Mon 9/3

05:45-18:55

1 stop13h 10m

£81

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Fri 13/2

14:30-21:55

1 stop7h 25m

Cork

Sun 15/2

18:10-07:25

1 stop13h 15m

£83

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 28/2

08:50-14:50

1 stop6h 00m

Dublin

Sat 7/3

18:45-22:45

1 stop4h 00m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 13/2

18:00-23:25

1 stop5h 25m

Dublin

Mon 16/2

15:30-18:55

1 stop3h 25m

£86

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 28/2

08:50-15:05

1 stop6h 15m

Cork

Sat 7/3

07:25-20:30

1 stop13h 05m

£93

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 7/2

07:20-18:25

1 stop11h 05m

Cork

Sun 8/2

22:25-07:25

1 stop9h 00m

£99

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 28/2

08:50-20:05

1 stop11h 15m

Dublin

Mon 2/3

12:00-18:25

1 stop6h 25m

£100

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 10/2

18:25-23:05

1 stop4h 40m

Dublin

Tue 17/2

12:25-20:15

1 stop7h 50m

£100

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 11/2

21:00-08:05

1 stop11h 05m

Cork

Wed 18/2

05:45-10:20

1 stop4h 35m

£103

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 3/2

20:55-08:40

1 stop11h 45m

Cork

Fri 6/2

21:30-06:55

1 stop9h 25m

£103

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 18 results
1
2

Best time to book a flight from Belfast Intl to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast Intl Airport to Ireland
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What are the most popular routes from Belfast Intl Airport to Ireland?

    While some choose either Belfast Intl - Dublin or Belfast Intl - Shannon, Belfast Intl - Cork is the most popular route from Belfast Intl Airport to Ireland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl to Ireland 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

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Alternative routes for Belfast Intl to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Belfast Intl to Ireland?

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

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