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Cheap flights from Ireland to Belfast from £38

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 1/6. 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
08:15 - 22:20
ORK
-
BFS
14h 05m
1 stop
Multiple Airlines Logo
15:40 - 16:55
BFS
-
ORK
25h 15m
1 stop
£71Multiple Airlines
Thu, 28 May - Wed, 3 Jun
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
£72Multiple Airlines
Wed, 10 Jun - Wed, 17 Jun
Multiple Airlines Logo
08:15 - 22:20
ORK
-
BFS
14h 05m
1 stop
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
£73Multiple Airlines
Thu, 28 May - Wed, 3 Jun
Multiple Airlines Logo
15:00 - 21:30
KIR
-
BFS
6h 30m
1 stop
Multiple Airlines Logo
12:45 - 17:15
BFS
-
KIR
4h 30m
1 stop
£73Multiple Airlines
Mon, 1 Jun - Thu, 4 Jun
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
£73Multiple Airlines
Tue, 2 Jun - Thu, 4 Jun
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
£74Multiple Airlines
Tue, 2 Jun - Thu, 4 Jun
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
Multiple Airlines Logo
07:10 - 10:30
BFS
-
DUB
3h 20m
1 stop
£74Multiple Airlines
Sun, 7 Jun - Sun, 14 Jun
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
12:45 - 16:55
BFS
-
ORK
4h 10m
1 stop
£75Multiple Airlines
Tue, 2 Jun - Thu, 4 Jun
Multiple Airlines Logo
10:30 - 21:30
DUB
-
BFS
11h 00m
1 stop
Multiple Airlines Logo
08:40 - 17:05
BFS
-
DUB
8h 25m
1 stop
£75Multiple Airlines
Mon, 8 Jun - Mon, 15 Jun
Multiple Airlines Logo
08:30 - 15:20
SNN
-
BFS
6h 50m
1 stop
Multiple Airlines Logo
15:40 - 23:35
BFS
-
SNN
7h 55m
1 stop
£76Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun

Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
8 Jun
DUB10:20Dublin
4h 35m
1 stop
BHD14:55Belfast City
16 Jun
BHD15:30Belfast City
7h 10m
1 stop
DUB22:40Dublin
£174
Aer Lingus
4 Jun
DUB07:30Dublin
13h 35m
1 stop
BHD21:05Belfast City
10 Jun
BHD07:00Belfast City
15h 05m
1 stop
DUB22:05Dublin
£215
Aer Lingus
28 May
ORK19:20Cork
16h 35m
1 stop
BHD11:55Belfast City
3 Jun
BHD09:50Belfast City
9h 00m
1 stop
ORK18:50Cork
£237

KLM flights from Ireland to Belfast

Our best KLM deals on Ireland to Belfast flight tickets
KLM
8 Jun
DUB05:55Dublin
11h 00m
1 stop
BHD16:55Belfast City
16 Jun
BHD09:50Belfast City
6h 50m
1 stop
DUB16:40Dublin
£339
KLM
6 Jun
DUB05:55Dublin
11h 00m
1 stop
BHD16:55Belfast City
12 Jun
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
£348
KLM
28 May
ORK06:15Cork
27h 05m
1 stop
BHD09:20Belfast City
3 Jun
BHD17:30Belfast City
21h 10m
2 stops
ORK14:40Cork
£366

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 May 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

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 28/5

08:15-22:20

1 stop14h 05m

Belfast Intl

Wed 3/6

15:40-16:55

1 stop25h 15m

£71

CorkBelfast

ORK - BFS

ORKBFS

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

Belfast Intl

Wed 17/6

15:40-23:55

1 stop8h 15m

£72

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 28/5

08:15-22:20

1 stop14h 05m

Belfast Intl

Wed 3/6

15:40-23:55

1 stop8h 15m

£73
Fastest return journey

Milltown (Kerry)Belfast

KIR - BFS

KIRBFS

Milltown (Kerry)

Mon 1/6

15:00-21:30

1 stop6h 30m

Belfast Intl

Thu 4/6

12:45-17:15

1 stop4h 30m

£73

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 2/6

22:25-07:05

1 stop8h 40m

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

£73

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 2/6

22:25-07:05

1 stop8h 40m

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

£74

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 7/6

23:10-08:15

1 stop9h 05m

Belfast Intl

Sun 14/6

07:10-10:30

1 stop3h 20m

£74

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 2/6

22:25-07:05

1 stop8h 40m

Belfast Intl

Thu 4/6

12:45-16:55

1 stop4h 10m

£75

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 8/6

10:30-21:30

1 stop11h 00m

Belfast Intl

Mon 15/6

08:40-17:05

1 stop8h 25m

£75

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Thu 4/6

08:30-15:20

1 stop6h 50m

Belfast Intl

Wed 10/6

15:40-23:35

1 stop7h 55m

£76

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

4h 55m

Direct flights

None
The fastest flight from Ireland to Belfast takes 4h 55m
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