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Cheap flights from Ireland to Belfast from £65

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 14 November 2025.

Wed 17/1214:55ORK - BFS
1 stop7h 40mMultiple Airlines
Sat 20/1222:25BFS - ORK
1 stop8h 35mMultiple Airlines
Deal found 12/11£94
Wed 17/1211:45DUB - BFS
1 stop7h 20mMultiple Airlines
Sun 21/1207:10BFS - DUB
1 stop9h 50mMultiple Airlines
Deal found 12/11£100
Wed 10/1208:30DUB - BFS
1 stop4h 55mMultiple Airlines
Wed 17/1207:00BFS - DUB
1 stop4h 10mMultiple Airlines
Deal found 12/11£101
Wed 10/1212:25DUB - BHD
1 stop4h 25mMultiple Airlines
Wed 17/1215:55BHD - DUB
1 stop4h 10mMultiple Airlines
Deal found 12/11£104
Sat 6/1220:00DUB - BFS
1 stop12h 50mMultiple Airlines
Sat 13/1223:10BFS - DUB
1 stop8h 40mMultiple Airlines
Deal found 13/11£110
Mon 8/1222:10DUB - BFS
1 stop9h 45mMultiple Airlines
Tue 16/1208:35BFS - DUB
1 stop12h 55mMultiple Airlines
Deal found 13/11£111
Mon 1/1222:25ORK - BFS
1 stop10h 30mMultiple Airlines
Fri 5/1218:00BFS - ORK
1 stop4h 45mMultiple Airlines
Deal found 13/11£122
Sun 28/1220:50DUB - BFS
1 stop10h 35mMultiple Airlines
Sun 4/123:05BFS - DUB
1 stop8h 50mMultiple Airlines
Deal found 13/11£124
Sat 27/1220:50DUB - BFS
1 stop9h 55mMultiple Airlines
Sat 3/106:00BFS - DUB
1 stop10h 30mMultiple Airlines
Deal found 12/11£126
Fri 5/1206:40DUB - BHD
1 stop14h 15mAer Lingus
Sat 6/1206:50BHD - DUB
1 stop10h 30mAer Lingus
Deal found 12/11£132
Sat 13/1222:40ORK - BHD
1 stop11h 05mMultiple Airlines
Sat 20/1218:00BHD - ORK
1 stop13h 00mMultiple Airlines
Deal found 13/11£133
Sun 7/1218:15DUB - BFS
1 stop13h 45mMultiple Airlines
Sat 13/1212:45BFS - DUB
1 stop3h 45mMultiple Airlines
Deal found 11/11£136

Cheap flight deals from Ireland to Belfast

Keep the following information in mind while searching for Ireland to Belfast flight deals. Data was last updated 14 November 2025.

Round-trip from

£94

One-way from

£62
17/12-20/12
  • 17/12-20/12
  • 2 total stops
  • 16h 15m total
  • Ireland to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 15/12
  • 1 total stop
  • 10h 45m 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 14 November 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

Wed 17/12

14:55-22:35

1 stop7h 40m

Belfast Intl

Sat 20/12

22:25-07:00

1 stop8h 35m

£94

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 5/1

22:25-09:45

1 stop11h 20m

Belfast Intl

Sun 11/1

07:30-13:15

1 stop5h 45m

£94

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 17/12

07:10-19:05

1 stop11h 55m

Belfast Intl

Sun 21/12

07:10-20:40

1 stop13h 30m

£100

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 10/12

07:10-19:05

1 stop11h 55m

Belfast Intl

Wed 17/12

10:35-19:40

1 stop9h 05m

£101

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Mon 5/1

10:50-18:55

1 stop8h 05m

Belfast Intl

Sun 11/1

20:45-09:25

1 stop12h 40m

£103

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 5/1

22:15-07:35

1 stop9h 20m

Belfast Intl

Mon 12/1

07:00-19:00

1 stop12h 00m

£103

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Wed 10/12

12:25-16:50

1 stop4h 25m

Belfast City

Wed 17/12

15:55-20:05

1 stop4h 10m

£104

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 6/12

20:00-08:50

1 stop12h 50m

Belfast Intl

Sat 13/12

23:10-07:50

1 stop8h 40m

£110

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 8/12

22:10-07:55

1 stop9h 45m

Belfast Intl

Tue 16/12

08:35-21:30

1 stop12h 55m

£111

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Wed 11/2

06:50-16:20

1 stop9h 30m

Belfast City

Sat 14/2

09:25-21:50

1 stop12h 25m

£116

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 33 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 14 November 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 Cork - Belfast Intl. You may also consider Shannon - Belfast Intl or Cork - Belfast City.

  • 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?

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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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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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