Cheap flights from Ireland to Belfast from £40

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 2/2. 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
0 bags
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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
22:40 - 06:45
ORK
-
BFS
8h 05m1 stop
Multiple Airlines Logo
12:45 - 22:15
BFS
-
ORK
9h 30m1 stop
£78Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
06:45 - 10:20
DUB
-
BFS
3h 35m1 stop
Multiple Airlines Logo
07:55 - 13:25
BFS
-
DUB
5h 30m1 stop
£78Multiple Airlines
Wed, 4 Feb - Wed, 11 Feb
Multiple Airlines Logo
21:45 - 07:25
DUB
-
BFS
9h 40m1 stop
Multiple Airlines Logo
05:45 - 11:35
BFS
-
DUB
5h 50m1 stop
£79Multiple Airlines
Sun, 18 Jan - Sun, 25 Jan
Multiple Airlines Logo
06:10 - 14:55
ORK
-
BFS
8h 45m1 stop
Multiple Airlines Logo
18:50 - 07:20
BFS
-
ORK
12h 30m1 stop
£81Multiple Airlines
Mon, 2 Feb - Mon, 9 Feb
Multiple Airlines Logo
06:10 - 14:55
ORK
-
BFS
8h 45m1 stop
Multiple Airlines Logo
12:40 - 20:55
BFS
-
ORK
8h 15m1 stop
£82Multiple Airlines
Mon, 2 Feb - Mon, 9 Feb
Multiple Airlines Logo
09:45 - 18:25
DUB
-
BFS
8h 40m1 stop
Multiple Airlines Logo
18:25 - 07:50
BFS
-
DUB
13h 25m1 stop
£83Multiple Airlines
Mon, 2 Feb - Wed, 11 Feb
Multiple Airlines Logo
07:50 - 21:55
ORK
-
BFS
14h 05m1 stop
Multiple Airlines Logo
18:50 - 07:20
BFS
-
ORK
12h 30m1 stop
£84Multiple Airlines
Mon, 2 Feb - Mon, 9 Feb
Multiple Airlines Logo
06:45 - 20:25
DUB
-
BFS
13h 40m1 stop
Multiple Airlines Logo
23:05 - 08:25
BFS
-
DUB
9h 20m1 stop
£84Multiple Airlines
Fri, 6 Feb - Sun, 8 Feb
British Airways Logo
07:50 - 14:15
SNN
-
BHD
6h 25m1 stop
British Airways Logo
06:35 - 11:30
BHD
-
SNN
4h 55m1 stop
£407British Airways
Sat, 10 Jan - Sat, 17 Jan
British Airways Logo
17:30 - 10:20
SNN
-
BHD
16h 50m1 stop
British Airways Logo
06:30 - 16:45
BHD
-
SNN
10h 15m1 stop
£832British Airways
Thu, 22 Jan - Sun, 25 Jan

KLM flights from Ireland to Belfast

Our best KLM deals on Ireland to Belfast flight tickets
KLM
2 Feb
DUB05:55Dublin
10h 55m
1 stop
BHD16:50Belfast City
10 Feb
BHD17:20Belfast City
4h 50m
1 stop
DUB22:10Dublin
KLM
17 Jan
ORK06:00Cork
10h 50m
1 stop
BHD16:50Belfast City
24 Jan
BHD17:20Belfast City
6h 05m
1 stop
ORK23:25Cork

British Airways flights from Ireland to Belfast

Our best British Airways deals on Ireland to Belfast flight tickets
British Airways
2 Feb
DUB20:40Dublin
12h 25m
1 stop
BHD09:05Belfast City
10 Feb
BHD19:25Belfast City
12h 30m
1 stop
DUB07:55Dublin
British Airways
6 Jun
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
12 Jun
BHD20:05Belfast City
11h 35m
1 stop
DUB07:40Dublin
British Airways
2 Feb
DUB20:40Dublin
14h 00m
1 stop
BHD10:40Belfast City
11 Feb
BHD06:35Belfast City
10h 25m
1 stop
DUB17:00Dublin

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 21 December 2025.
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

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 17/1

22:40-06:45

1 stop8h 05m

Belfast Intl

Sat 24/1

12:45-22:15

1 stop9h 30m

£78

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 4/2

06:45-10:20

1 stop3h 35m

Belfast Intl

Wed 11/2

07:55-13:25

1 stop5h 30m

£78

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 18/1

21:45-07:25

1 stop9h 40m

Belfast Intl

Sun 25/1

05:45-11:35

1 stop5h 50m

£79

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 2/2

06:10-14:55

1 stop8h 45m

Belfast Intl

Mon 9/2

18:50-07:20

1 stop12h 30m

£81

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 2/2

06:10-14:55

1 stop8h 45m

Belfast Intl

Mon 9/2

12:40-20:55

1 stop8h 15m

£82

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 2/2

09:45-18:25

1 stop8h 40m

Belfast Intl

Wed 11/2

18:25-07:50

1 stop13h 25m

£83

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 2/2

07:50-21:55

1 stop14h 05m

Belfast Intl

Mon 9/2

18:50-07:20

1 stop12h 30m

£84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 6/2

06:45-20:25

1 stop13h 40m

Belfast Intl

Sun 8/2

23:05-08:25

1 stop9h 20m

£84

ShannonBelfast

SNN - BHD

SNNBHD

Shannon

Sat 10/1

07:50-14:15

1 stop6h 25m

Belfast City

Sat 17/1

06:35-11:30

1 stop4h 55m

£407

ShannonBelfast

SNN - BHD

SNNBHD

Shannon

Thu 22/1

17:30-10:20

1 stop16h 50m

Belfast City

Sun 25/1

06:30-16:45

1 stop10h 15m

£832

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

How long does it take to fly to Belfast?

Flight times from Ireland to Belfast vary, but if you’re flying out of Dublin and flying into Belfast Intl Airport (one of the most popular routes), then the duration is 3h 35m on average. Another popular route from Ireland to Belfast is flying from Milltown (Kerry) to Belfast Intl Airport, which will take roughly 3h 50m. Keep in mind that layovers or delays could extend your travel time.

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 35m

Direct flights

None
The fastest flight from Ireland to Belfast takes 3h 35m
There are no direct flights from Ireland to Belfast. There are no popular flight routes 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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1 adult
Tue 20/1
Tue 27/1

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