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Cheap flights from Ireland to Belfast 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
11 Jan — 18 Jan1
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 12 December 2025.

Mon 15/1217:30DUB - BFS
1 stop15h 35mMultiple Airlines
Sun 21/1223:05BFS - DUB
1 stop8h 50mMultiple Airlines
Deal found 10/12£111
Mon 15/1217:30DUB - BFS
1 stop15h 35mMultiple Airlines
Sat 20/1209:15BFS - DUB
1 stop26h 45mMultiple Airlines
Deal found 10/12£114
Wed 17/1205:45DUB - BFS
1 stop16h 25mMultiple Airlines
Sun 21/1223:05BFS - DUB
1 stop8h 50mMultiple Airlines
Deal found 10/12£114
Fri 26/1221:30ORK - BFS
1 stop9h 25mMultiple Airlines
Tue 30/1219:35BFS - ORK
1 stop13h 10mMultiple Airlines
Deal found 10/12£115
Wed 17/1211:50DUB - BFS
1 stop10h 20mMultiple Airlines
Sat 20/1206:00BFS - DUB
1 stop15h 50mMultiple Airlines
Deal found 10/12£117
Wed 24/1207:45ORK - BFS
1 stop11h 05mMultiple Airlines
Fri 26/1211:45BFS - ORK
1 stop9h 20mMultiple Airlines
Deal found 11/12£122
Sat 13/1215:05ORK - BFS
2 stops15h 40mMultiple Airlines
Sat 20/1222:25BFS - ORK
1 stop8h 35mMultiple Airlines
Deal found 11/12£123
Thu 18/1213:00DUB - BFS
1 stop3h 10mMultiple Airlines
Sun 21/1223:05BFS - DUB
1 stop8h 50mMultiple Airlines
Deal found 10/12£126
Fri 19/1206:45DUB - BFS
1 stop4h 35mMultiple Airlines
Sat 20/1220:00BFS - DUB
1 stop4h 50mMultiple Airlines
Deal found 10/12£130
Tue 16/1206:10DUB - BFS
1 stop3h 45mMultiple Airlines
Sat 20/1220:00BFS - DUB
1 stop4h 50mMultiple Airlines
Deal found 10/12£131
Wed 17/1211:40DUB - BFS
1 stop3h 05mMultiple Airlines
Fri 19/1217:15BFS - DUB
1 stop6h 50mMultiple Airlines
Deal found 10/12£134
Fri 19/1206:45DUB - BFS
1 stop4h 35mMultiple Airlines
Sun 21/1220:05BFS - DUB
1 stop3h 50mMultiple Airlines
Deal found 10/12£135

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 12 December 2025.

Round-trip from

£79

One-way from

£46
Ryanair
  • Ryanair
  • 23/1-26/1
  • 2 total stops
  • 7h 50m total
  • Ireland to Belfast
Search Deals
9/1
  • 9/1
  • 1 total stop
  • 9h 00m 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 12 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

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 23/1

17:00-21:05

1 stop4h 05m

Belfast Intl

Mon 26/1

07:50-11:35

1 stop3h 45m

£79

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 19/1

07:50-21:55

1 stop14h 05m

Belfast Intl

Sun 25/1

22:45-07:25

1 stop8h 40m

£81

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 19/1

06:10-14:55

1 stop8h 45m

Belfast Intl

Mon 26/1

12:40-20:55

1 stop8h 15m

£82

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 25/1

21:45-07:25

1 stop9h 40m

Belfast Intl

Sun 1/2

05:45-09:50

1 stop4h 05m

£83

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 9/1

17:00-21:05

1 stop4h 05m

Belfast Intl

Fri 16/1

07:50-13:20

1 stop5h 30m

£84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 17/1

21:45-06:45

1 stop9h 00m

Belfast Intl

Sat 24/1

12:45-23:15

1 stop10h 30m

£84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 4/1

18:15-22:40

1 stop4h 25m

Belfast Intl

Sun 11/1

23:05-07:55

1 stop8h 50m

£89

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 24/1

15:00-22:00

1 stop7h 00m

Belfast Intl

Sat 31/1

13:10-22:15

1 stop9h 05m

£94

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Mon 2/2

23:15-08:55

1 stop9h 40m

Belfast Intl

Mon 9/2

07:50-13:50

1 stop6h 00m

£98

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 24/1

20:00-08:50

1 stop12h 50m

Belfast Intl

Sat 31/1

08:00-18:25

1 stop10h 25m

£98

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 48 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 12 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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Frankfurt to Belfast Intl flights
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Leeds to Belfast City flights
Southampton to Belfast Intl flights
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Liverpool to Belfast City flights
East Midlands to Belfast Intl flights
Orly to Belfast City flights
Frankfurt-Hahn to Belfast Intl flights
Cork to Belfast Intl flights
Lyon to Belfast Intl flights
Newcastle upon Tyne to Belfast City flights
East Midlands to Belfast City flights
Cardiff to Belfast Intl flights
Cardiff to Belfast City flights
Southampton to Belfast City flights
Frankfurt to Belfast City flights
Lyon to Belfast City flights
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Heathrow to Derry flights
Málaga to Belfast Intl flights

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?

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.

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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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