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Cheap flights from Ireland to Belfast from £33

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:10 - 10:00DUB  Dublin-BFS Belfast Intl
12h 50m1 stop Manchester
Multiple Airlines Logo
08:40 - 20:10BFS  Belfast Intl-DUB Dublin
11h 30m1 stop Manchester
£68Multiple Airlines
Mon, 21 Sep - Mon, 28 Sep
Multiple Airlines Logo
22:20 - 09:05DUB  Dublin-BFS Belfast Intl
10h 45m1 stop Edinburgh Turnhouse
Multiple Airlines Logo
19:20 - 01:00BFS  Belfast Intl-DUB Dublin
5h 40m1 stop Edinburgh Turnhouse
£69Multiple Airlines
Fri, 25 Sep - Fri, 2 Oct
Multiple Airlines Logo
17:25 - 22:20ORK  Cork-BFS Belfast Intl
4h 55m1 stop Manchester
Multiple Airlines Logo
15:40 - 23:55BFS  Belfast Intl-ORK Cork
8h 15m1 stop Manchester
£70Multiple Airlines
Thu, 17 Sep - Wed, 30 Sep
Multiple Airlines Logo
21:20 - 07:05DUB  Dublin-BFS Belfast Intl
9h 45m1 stop Manchester
Multiple Airlines Logo
07:35 - 14:05BFS  Belfast Intl-DUB Dublin
6h 30m1 stop Manchester
£70Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
22:25 - 07:05ORK  Cork-BFS Belfast Intl
8h 40m1 stop Manchester
Multiple Airlines Logo
07:35 - 21:45BFS  Belfast Intl-ORK Cork
14h 10m1 stop Manchester
£70Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
06:30 - 15:15DUB  Dublin-BFS Belfast Intl
8h 45m1 stop Manchester
Multiple Airlines Logo
07:30 - 16:00BFS  Belfast Intl-DUB Dublin
8h 30m1 stop Manchester
£70Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
17:25 - 22:20ORK  Cork-BFS Belfast Intl
4h 55m1 stop Manchester
Multiple Airlines Logo
15:40 - 23:55BFS  Belfast Intl-ORK Cork
8h 15m1 stop Manchester
£71Multiple Airlines
Thu, 17 Sep - Wed, 23 Sep
Multiple Airlines Logo
21:10 - 10:00DUB  Dublin-BFS Belfast Intl
12h 50m1 stop Manchester
Multiple Airlines Logo
07:35 - 16:25BFS  Belfast Intl-DUB Dublin
8h 50m1 stop Manchester
£71Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
09:55 - 15:15ORK  Cork-BFS Belfast Intl
5h 20m1 stop Manchester
Multiple Airlines Logo
15:40 - 23:55BFS  Belfast Intl-ORK Cork
8h 15m1 stop Manchester
£72Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
06:30 - 15:15DUB  Dublin-BFS Belfast Intl
8h 45m1 stop Manchester
Multiple Airlines Logo
07:30 - 20:30BFS  Belfast Intl-DUB Dublin
13h 00m1 stop Manchester
£72Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep

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Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
28 Sept
DUB09:55Dublin
3h 55m
1 stop
BHD13:50Belfast City
4 Oct
BHD11:05Belfast City
4h 25m
1 stop
DUB15:30Dublin
£218
Aer Lingus
28 Sept
DUB10:30Dublin
6h 05m
1 stop
BHD16:35Belfast City
4 Oct
BHD14:05Belfast City
5h 55m
1 stop
DUB20:00Dublin
£241
Aer Lingus
19 Aug
DUB11:00Dublin
6h 20m
1 stop
BHD17:20Belfast City
23 Aug
BHD06:50Belfast City
15h 50m
1 stop
DUB22:40Dublin
£278

KLM flights from Ireland to Belfast

Our best KLM deals on Ireland to Belfast flight tickets
KLM
27 Sept
ORK06:15Cork
10h 40m
1 stop
BHD16:55Belfast City
3 Oct
BHD17:30Belfast City
5h 05m
1 stop
ORK22:35Cork
£239
KLM
17 Sept
ORK10:50Cork
6h 05m
1 stop
BHD16:55Belfast City
23 Sept
BHD17:30Belfast City
5h 05m
1 stop
ORK22:35Cork
£249
KLM
27 Sept
ORK06:15Cork
10h 40m
1 stop
BHD16:55Belfast City
3 Oct
BHD17:30Belfast City
5h 05m
1 stop
ORK22:35Cork
£250

momondo 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, momondo users made 279,928 searches. Data last updated 12 August 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 21/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Mon 28/9

08:40-20:10

1 stop11h 30m

£68

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Fri 25/9

22:20-09:05

1 stop10h 45m

Belfast Intl

Fri 2/10

19:20-01:00

1 stop5h 40m

£69
Fastest return journey

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Thu 17/9

17:25-22:20

1 stop4h 55m

Belfast Intl

Wed 30/9

15:40-23:55

1 stop8h 15m

£70

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Tue 8/9

21:20-07:05

1 stop9h 45m

Belfast Intl

Tue 15/9

07:35-14:05

1 stop6h 30m

£70

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Tue 8/9

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 15/9

07:35-21:45

1 stop14h 10m

£70

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Wed 16/9

06:30-15:15

1 stop8h 45m

Belfast Intl

Wed 23/9

07:30-16:00

1 stop8h 30m

£70

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Thu 17/9

17:25-22:20

1 stop4h 55m

Belfast Intl

Wed 23/9

15:40-23:55

1 stop8h 15m

£71

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 21/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Tue 29/9

07:35-16:25

1 stop8h 50m

£71

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Wed 9/9

09:55-15:15

1 stop5h 20m

Belfast Intl

Wed 16/9

15:40-23:55

1 stop8h 15m

£72

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Wed 16/9

06:30-15:15

1 stop8h 45m

Belfast Intl

Wed 23/9

07:30-20:30

1 stop13h 00m

£72

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Belfast?

Ryanair is the most popular carrier operating from Ireland to Belfast

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

3h 25m

Direct flights

None
The fastest flight from Ireland to Belfast takes 3h 25m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
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Frequently asked questions about flying from Ireland to Belfast

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The necessary travel and health documents for your Belfast trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

Finding the right flight to Belfast from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

momondo provides multiple filters to help you find the best flight to Belfast from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport