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Cheap flights from Ireland to Belfast from £37

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Belfast
Explore the most affordable flight options available from Ireland to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Sat 21/206:50
DUB
-
BFS
1 stop8h 20m
Multiple Airlines
Mon 23/207:50
BFS
-
DUB
1 stop7h 05m
Multiple Airlines
Deal found 21/1£73
Sat 7/318:45
DUB
-
BFS
1 stop4h 00m
Multiple Airlines
Sat 14/323:10
BFS
-
DUB
1 stop8h 40m
Multiple Airlines
Deal found 21/1£79
Wed 18/206:45
DUB
-
BFS
1 stop9h 15m
Multiple Airlines
Wed 25/207:55
BFS
-
DUB
1 stop5h 30m
Multiple Airlines
Deal found 21/1£80
Fri 6/322:20
ORK
-
BFS
1 stop13h 35m
Multiple Airlines
Fri 13/314:30
BFS
-
ORK
1 stop7h 25m
Multiple Airlines
Deal found 20/1£81
Fri 6/306:45
DUB
-
BFS
1 stop3h 45m
Multiple Airlines
Fri 13/318:00
BFS
-
DUB
1 stop3h 25m
Multiple Airlines
Deal found 20/1£84
Sat 7/322:40
ORK
-
BFS
1 stop8h 05m
Multiple Airlines
Fri 13/318:00
BFS
-
ORK
1 stop13h 00m
Multiple Airlines
Deal found 21/1£85
Sat 7/318:50
ORK
-
BFS
1 stop13h 20m
Multiple Airlines
Sat 14/307:20
BFS
-
ORK
1 stop11h 05m
Multiple Airlines
Deal found 21/1£86
Wed 18/206:20
DUB
-
BHD
1 stop10h 55m
Multiple Airlines
Wed 25/217:45
BHD
-
DUB
1 stop4h 00m
Multiple Airlines
Deal found 21/1£86
Fri 27/216:55
ORK
-
BFS
1 stop4h 10m
Multiple Airlines
Sun 1/322:45
BFS
-
ORK
1 stop8h 40m
Multiple Airlines
Deal found 20/1£86
Fri 27/315:45
ORK
-
BFS
1 stop4h 40m
Multiple Airlines
Mon 30/321:55
BFS
-
ORK
1 stop10h 10m
Multiple Airlines
Deal found 20/1£88
Fri 20/322:20
ORK
-
BFS
1 stop10h 30m
Multiple Airlines
Mon 23/322:20
BFS
-
ORK
1 stop9h 00m
Multiple Airlines
Deal found 21/1£89
Fri 27/206:30
DUB
-
BFS
1 stop14h 35m
Multiple Airlines
Sat 28/208:50
BFS
-
DUB
1 stop12h 30m
Multiple Airlines
Deal found 20/1£92

Find flight deals from Ireland to Belfast

Keep the following information in mind while searching for Ireland to Belfast flight deals. Data was last updated 22 January 2026.

Round-trip from

£73

One-way from

£37
21/2-23/2
  • 21/2-23/2
  • 2 total stops
  • 15h 25m total
  • Ireland to Belfast
Search Deals
20/5
  • 20/5
  • 1 total stop
  • 5h 10m total
  • Ireland to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast 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 22 January 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Ireland

Fly to

Belfast

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 21/2

06:50-15:10

1 stop8h 20m

Belfast Intl

Mon 23/2

07:50-14:55

1 stop7h 05m

£73

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 7/3

18:45-22:45

1 stop4h 00m

Belfast Intl

Sat 14/3

23:10-07:50

1 stop8h 40m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 18/2

06:45-16:00

1 stop9h 15m

Belfast Intl

Wed 25/2

07:55-13:25

1 stop5h 30m

£80

CorkBelfast

ORK - BFS

ORKBFS

Cork

Fri 6/3

22:20-11:55

1 stop13h 35m

Belfast Intl

Fri 13/3

14:30-21:55

1 stop7h 25m

£81

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 6/3

06:45-10:30

1 stop3h 45m

Belfast Intl

Fri 13/3

18:00-21:25

1 stop3h 25m

£84

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 7/3

22:40-06:45

1 stop8h 05m

Belfast Intl

Fri 13/3

18:00-07:00

1 stop13h 00m

£85

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 7/3

18:50-08:10

1 stop13h 20m

Belfast Intl

Sat 14/3

07:20-18:25

1 stop11h 05m

£86

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Wed 18/2

06:20-17:15

1 stop10h 55m

Belfast City

Wed 25/2

17:45-21:45

1 stop4h 00m

£86

CorkBelfast

ORK - BFS

ORKBFS

Cork

Fri 27/2

16:55-21:05

1 stop4h 10m

Belfast Intl

Sun 1/3

22:45-07:25

1 stop8h 40m

£86

CorkBelfast

ORK - BFS

ORKBFS

Cork

Fri 20/3

22:20-08:50

1 stop10h 30m

Belfast Intl

Mon 23/3

22:20-07:20

1 stop9h 00m

£89

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 41 results
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Best time to book a flight from Ireland to Belfast

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

    The most popular route from Ireland to Belfast is Dublin - Belfast Intl. You may also consider Dublin - Belfast City or Cork - Belfast Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland to Belfast 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 Ireland to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Cardiff to Belfast City flights
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East Midlands to Belfast City flights
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Fly with Cheapflights

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How does Cheapflights help users find flights from Ireland to Belfast?

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

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Belfast flexibly with Cheapflights today.

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