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Cheap flights from Ireland to Belfast from £48

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
7 Dec — 14 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 7 November 2025.

Sat 6/1206:40DUB - BFS
1 stop9h 55mMultiple Airlines
Fri 12/1207:50BFS - DUB
1 stop9h 25mMultiple Airlines
Deal found 6/11£89
Tue 9/1219:20DUB - BFS
1 stop13h 00mMultiple Airlines
Mon 15/1220:30BFS - DUB
1 stop4h 20mMultiple Airlines
Deal found 7/11£99
Tue 2/1211:15DUB - BFS
1 stop5h 20mMultiple Airlines
Tue 9/1207:15BFS - DUB
1 stop6h 35mMultiple Airlines
Deal found 7/11£102
Wed 3/1207:10DUB - BFS
1 stop11h 55mMultiple Airlines
Wed 10/1207:15BFS - DUB
1 stop7h 25mMultiple Airlines
Deal found 5/11£103
Sat 29/1120:00ORK - BFS
1 stop12h 50mMultiple Airlines
Sat 6/1205:45BFS - ORK
1 stop9h 20mMultiple Airlines
Deal found 5/11£104
Thu 4/1213:45DUB - BFS
1 stop9h 05mMultiple Airlines
Thu 11/1219:45BFS - DUB
1 stop12h 05mMultiple Airlines
Deal found 6/11£106
Fri 5/1206:30DUB - BFS
1 stop14h 35mMultiple Airlines
Sat 13/1223:10BFS - DUB
1 stop8h 40mMultiple Airlines
Deal found 4/11£110
Sat 13/1220:25SNN - BFS
1 stop12h 25mMultiple Airlines
Fri 19/1208:20BFS - SNN
1 stop12h 10mMultiple Airlines
Deal found 6/11£111
Thu 4/1207:20DUB - BHD
1 stop12h 00mMultiple Airlines
Thu 11/1220:00BHD - DUB
1 stop11h 05mMultiple Airlines
Deal found 6/11£112
Fri 21/1122:20ORK - BFS
1 stop10h 30mMultiple Airlines
Tue 25/1120:55BFS - ORK
1 stop10h 25mMultiple Airlines
Deal found 5/11£117
Wed 3/1206:15DUB - BHD
1 stop11h 20mMultiple Airlines
Wed 10/1217:20BHD - DUB
1 stop3h 50mMultiple Airlines
Deal found 4/11£117
Sat 29/1120:25SNN - BFS
1 stop12h 25mMultiple Airlines
Sat 6/1212:45BFS - SNN
1 stop7h 20mMultiple Airlines
Deal found 6/11£119

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 7 November 2025.

Round-trip from

£89

One-way from

£48
6/12-12/12
  • 6/12-12/12
  • 2 total stops
  • 19h 20m total
  • Ireland to Belfast
Search Deals
Ryanair
  • Ryanair
  • 19/11
  • 1 total stop
  • 16h 25m 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 7 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

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 9/12

19:20-08:20

1 stop13h 00m

Belfast Intl

Mon 15/12

20:30-00:50

1 stop4h 20m

£99

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 2/12

11:15-16:35

1 stop5h 20m

Belfast Intl

Tue 9/12

07:15-13:50

1 stop6h 35m

£102

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 6/12

18:45-08:50

1 stop14h 05m

Belfast Intl

Sun 7/12

22:45-12:50

1 stop14h 05m

£103

CorkBelfast

ORK - BFS

ORKBFS

Cork

Fri 19/12

21:30-06:55

1 stop9h 25m

Belfast Intl

Sun 21/12

23:05-07:10

1 stop8h 05m

£104

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 29/11

20:00-08:50

1 stop12h 50m

Belfast Intl

Sat 6/12

05:45-15:05

1 stop9h 20m

£104

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 1/2

06:55-13:30

1 stop6h 35m

Belfast Intl

Thu 5/2

16:35-21:35

1 stop5h 00m

£104

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 3/12

14:10-19:05

1 stop4h 55m

Belfast Intl

Wed 10/12

16:35-21:10

1 stop4h 35m

£105

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 4/12

13:45-22:50

1 stop9h 05m

Belfast Intl

Thu 11/12

19:45-07:50

1 stop12h 05m

£106

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 5/12

06:30-21:05

1 stop14h 35m

Belfast Intl

Sat 13/12

23:10-07:50

1 stop8h 40m

£110

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 6/12

06:40-18:45

1 stop12h 05m

Belfast Intl

Fri 12/12

07:50-21:10

1 stop13h 20m

£110

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 42 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 7 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.

  • How long is the flight from Ireland to Belfast?

    Aer Lingus can get you from Ireland to Belfast in just under 14h 15m. Your travel time can differ by up to . Airlines will cover a distance of 84 mi.

  • 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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Southampton 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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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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