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Cheap flights from Ireland to Belfast from £53

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
31 Aug — 7 Sep1
1 adult

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 26 August 2025.

Round-trip from

£96

One-way from

£53
14/10-16/10
  • 14/10-16/10
  • 2 total stops
  • 11h 40m total
  • Ireland to Belfast
Search Deals
20/10
  • 20/10
  • 1 total stop
  • 3h 35m total
  • Ireland to Belfast
Search Deals

Find flight deals from Ireland to Belfast

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 26 August 2025.

Tue 14/1007:40DUB - BFS
1 stop5h 30mMultiple Airlines
Thu 16/1015:55BFS - DUB
1 stop6h 10mMultiple Airlines
Deal found 25/8£96
Wed 8/1013:00DUB - BFS
1 stop8h 30mMultiple Airlines
Wed 15/1007:25BFS - DUB
1 stop7h 10mMultiple Airlines
Deal found 24/8£99
Wed 8/1014:30KIR - BFS
1 stop7h 00mMultiple Airlines
Wed 15/1007:25BFS - KIR
1 stop6h 40mMultiple Airlines
Deal found 24/8£103
Fri 10/1022:15DUB - BFS
1 stop9h 40mMultiple Airlines
Fri 17/1016:40BFS - DUB
1 stop8h 15mMultiple Airlines
Deal found 25/8£103
Thu 9/1011:30ORK - BFS
1 stop4h 00mMultiple Airlines
Thu 16/1007:10BFS - ORK
1 stop7h 15mMultiple Airlines
Deal found 25/8£105
Sat 27/906:10DUB - BFS
1 stop4h 45mMultiple Airlines
Sun 5/1022:10BFS - DUB
1 stop9h 35mMultiple Airlines
Deal found 25/8£105
Mon 22/915:45DUB - BFS
1 stop6h 35mMultiple Airlines
Mon 29/908:10BFS - DUB
1 stop3h 40mMultiple Airlines
Deal found 25/8£106
Wed 15/1006:30DUB - BFS
1 stop6h 50mMultiple Airlines
Wed 15/1022:05BFS - DUB
1 stop10h 10mMultiple Airlines
Deal found 25/8£107
Thu 9/1020:55ORK - BFS
1 stop13h 05mRyanair
Thu 16/1006:00BFS - ORK
1 stop14h 30mRyanair
Deal found 25/8£108
Fri 17/1007:10DUB - BFS
1 stop16h 20mMultiple Airlines
Sun 19/1007:45BFS - DUB
1 stop7h 00mMultiple Airlines
Deal found 24/8£109
Mon 22/920:15DUB - BHD
1 stop13h 55mMultiple Airlines
Mon 29/909:05BHD - DUB
1 stop13h 00mMultiple Airlines
Deal found 25/8£110
Sun 21/920:20DUB - BFS
1 stop11h 50mMultiple Airlines
Sun 28/907:15BFS - DUB
1 stop6h 45mMultiple Airlines
Deal found 24/8£115

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 26 August 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 14/10

07:40-13:10

1 stop5h 30m

Belfast Intl

Thu 16/10

15:55-22:05

1 stop6h 10m

£96

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 8/10

13:00-21:30

1 stop8h 30m

Belfast Intl

Wed 15/10

07:25-14:35

1 stop7h 10m

£99

Milltown (Kerry)Belfast

KIR - BFS

KIRBFS

Milltown (Kerry) Kerry

Wed 8/10

14:30-21:30

1 stop7h 00m

Belfast Intl

Wed 15/10

07:25-14:05

1 stop6h 40m

£103

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 10/10

22:15-07:55

1 stop9h 40m

Belfast Intl

Fri 17/10

16:40-00:55

1 stop8h 15m

£103

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 9/10

11:30-15:30

1 stop4h 00m

Belfast Intl

Thu 16/10

07:10-14:25

1 stop7h 15m

£105

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 27/9

06:10-10:55

1 stop4h 45m

Belfast Intl

Sun 5/10

22:10-07:45

1 stop9h 35m

£105

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 22/9

15:45-22:20

1 stop6h 35m

Belfast Intl

Mon 29/9

08:10-11:50

1 stop3h 40m

£106

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 15/10

06:30-13:20

1 stop6h 50m

Belfast Intl

Wed 15/10

22:05-08:15

1 stop10h 10m

£107

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 9/10

20:55-10:00

1 stop13h 05m

Belfast Intl

Thu 16/10

06:00-20:30

1 stop14h 30m

£108

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 17/10

07:10-23:30

1 stop16h 20m

Belfast Intl

Sun 19/10

07:45-14:45

1 stop7h 00m

£109

Flights are sorted by cheapest return flights first.

Deals found on 24/8

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 26 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to Belfast as you normally would.

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?

    Ryanair and Aer Lingus can get you from Ireland to Belfast in just under 9h 55m. Your travel time can differ by up to 3h 10m. Airlines will cover a distance of 84 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

  • What is the cheapest month to book a flight from Ireland to Belfast?

    Currently, January is the cheapest month in which you can book a flight from Ireland to Belfast (average of £67). Flying from Ireland to Belfast in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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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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