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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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
26 Jan — 2 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 27 December 2025.

Wed 31/1219:55DUB - BFS
1 stop12h 30mMultiple Airlines
Fri 2/121:20BFS - DUB
1 stop11h 35mMultiple Airlines
Deal found 26/12£116
Wed 31/1206:40DUB - BHD
1 stop11h 45mMultiple Airlines
Fri 2/106:50BHD - DUB
1 stop14h 20mMultiple Airlines
Deal found 26/12£146
Wed 31/1210:25KIR - BFS
2 stops9h 30mMultiple Airlines
Mon 12/107:50BFS - KIR
1 stop7h 20mMultiple Airlines
Deal found 26/12£163
Wed 31/1210:25KIR - BFS
2 stops9h 30mMultiple Airlines
Tue 13/105:45BFS - KIR
1 stop7h 40mMultiple Airlines
Deal found 26/12£164
Tue 30/1210:25KIR - BFS
2 stops8h 45mMultiple Airlines
Mon 12/107:50BFS - KIR
1 stop7h 20mMultiple Airlines
Deal found 26/12£172
Tue 30/1210:25KIR - BFS
2 stops8h 45mMultiple Airlines
Tue 13/105:45BFS - KIR
1 stop7h 40mMultiple Airlines
Deal found 26/12£173
Sat 27/1222:40ORK - BFS
1 stop11h 30mMultiple Airlines
Sat 3/105:45BFS - ORK
1 stop10h 05mMultiple Airlines
Deal found 26/12£210
Sat 27/1222:40ORK - BHD
1 stop11h 05mMultiple Airlines
Tue 30/1206:50BHD - ORK
1 stop7h 55mMultiple Airlines
Deal found 26/12£238

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 27 December 2025.

Round-trip from

£77

One-way from

£37
9/2-16/2
  • 9/2-16/2
  • 2 total stops
  • 24h 40m total
  • Ireland to Belfast
Search Deals
26/1
  • 26/1
  • 1 total stop
  • 5h 35m 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 27 December 2025.
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

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 9/2

22:25-08:55

1 stop10h 30m

Belfast Intl

Mon 16/2

07:50-22:00

1 stop14h 10m

£77

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 20/2

15:00-20:25

1 stop5h 25m

Belfast Intl

Sun 22/2

23:05-08:25

1 stop9h 20m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 8/2

06:30-12:00

1 stop5h 30m

Belfast Intl

Sun 15/2

05:45-09:50

1 stop4h 05m

£84

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sun 8/2

18:20-08:20

1 stop14h 00m

Belfast Intl

Sun 15/2

08:55-17:55

1 stop9h 00m

£84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 9/2

13:30-18:25

1 stop4h 55m

Belfast Intl

Mon 16/2

18:50-23:05

1 stop4h 15m

£85

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 5/2

10:00-16:15

1 stop6h 15m

Belfast Intl

Thu 12/2

14:00-19:00

1 stop5h 00m

£85

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 21/1

06:50-14:45

1 stop7h 55m

Belfast Intl

Wed 28/1

21:00-10:15

1 stop13h 15m

£87

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 7/2

06:30-11:55

1 stop5h 25m

Belfast Intl

Sat 14/2

08:50-18:20

1 stop9h 30m

£87

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 23/1

15:15-21:05

1 stop5h 50m

Belfast Intl

Fri 30/1

18:00-23:05

1 stop5h 05m

£87

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Sun 8/2

05:55-12:00

1 stop6h 05m

Belfast Intl

Sun 15/2

22:45-09:25

1 stop10h 40m

£91

Flights are sorted by cheapest return flights first.

Deals found on 25/12

Showing 1-10 of 45 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

What is the cheapest time of day to fly from IE to BFS?

Find hourly flight availability from Ireland to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 December 2025.

One of the essential ways to save on airfare from Ireland to Belfast is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 35% on airfare.

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

Browse thousands of different options on Cheapflights for your next trip

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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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Fly with Cheapflights

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

Cheapflights helps you search for flights from Ireland to Belfast via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Ireland to Belfast by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

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

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

Of course! You can now track prices for flights from Ireland to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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