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Cheap flights from Belfast to Ireland from £42

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Ireland departing on 10/8. 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

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Find the cheapest flights from Belfast to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£73Multiple Airlines
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
£74Multiple Airlines
Wed, 22 Jul - Wed, 29 Jul
Multiple Airlines Logo
21:40 - 08:30
BFS
-
ORK
10h 50m
1 stop
Multiple Airlines Logo
08:00 - 21:15
ORK
-
BFS
13h 15m
1 stop
£76Multiple Airlines
Sat, 8 Aug - Sat, 15 Aug
Multiple Airlines Logo
07:35 - 14:05
BFS
-
DUB
6h 30m
1 stop
Multiple Airlines Logo
20:20 - 07:05
DUB
-
BFS
10h 45m
1 stop
£77Multiple Airlines
Tue, 21 Jul - Tue, 28 Jul
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£77Multiple Airlines
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£77Multiple Airlines
Thu, 6 Aug - Wed, 12 Aug
Multiple Airlines Logo
07:30 - 21:30
BFS
-
DUB
14h 00m
1 stop
Multiple Airlines Logo
07:40 - 19:30
DUB
-
BFS
11h 50m
1 stop
£78Multiple Airlines
Wed, 29 Jul - Fri, 31 Jul
Aer Lingus Logo
06:40 - 16:10
BHD
-
SNN
33h 30m
3 stops
Aer Lingus Logo
21:15 - 21:05
SNN
-
BHD
23h 50m
3 stops
£659Aer Lingus
Mon, 13 Jul - Mon, 20 Jul
British Airways Logo
06:30 - 11:20
BHD
-
SNN
4h 50m
1 stop
British Airways Logo
07:30 - 15:30
SNN
-
BHD
8h 00m
1 stop
£689British Airways
Wed, 16 Sep - Sat, 19 Sep
British Airways Logo
06:30 - 11:20
BHD
-
SNN
4h 50m
1 stop
British Airways Logo
07:30 - 15:30
SNN
-
BHD
8h 00m
1 stop
£690British Airways
Wed, 16 Sep - Sat, 19 Sep

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British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
19 Sept
BHD19:05Belfast City
12h 40m
1 stop
DUB07:45Dublin
22 Sept
DUB19:30Dublin
13h 30m
1 stop
BHD09:00Belfast City
£165
British Airways
23 Sept
BHD19:40Belfast City
14h 00m
1 stop
DUB09:40Dublin
26 Sept
DUB20:15Dublin
13h 50m
1 stop
BHD10:05Belfast City
£166
British Airways
15 Sept
BHD19:30Belfast City
12h 10m
1 stop
DUB07:40Dublin
19 Sept
DUB20:15Dublin
13h 50m
1 stop
BHD10:05Belfast City
£179

KLM flights from Belfast to Ireland

Our best KLM deals on Belfast to Ireland flight tickets
KLM
13 Aug
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
17 Aug
DUB08:55Dublin
8h 00m
1 stop
BHD16:55Belfast City
£352
KLM
8 Aug
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
10 Aug
DUB11:10Dublin
5h 45m
1 stop
BHD16:55Belfast City
£387
KLM
15 Jul
BHD17:30Belfast City
21h 10m
2 stops
ORK14:40Cork
18 Jul
ORK09:20Cork
24h 00m
2 stops
BHD09:20Belfast City
£484

momondo Fare Finder

 
Customise your flight search to find flights from Belfast to Ireland 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 28 June 2026.
Use the filters below to find and compare flights from Belfast to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 5/8

15:40-23:55

1 stop8h 15m

Cork

Wed 12/8

09:55-15:15

1 stop5h 20m

£73

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 22/7

15:40-21:30

1 stop5h 50m

Dublin

Wed 29/7

06:30-15:15

1 stop8h 45m

£74

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 8/8

21:40-08:30

1 stop10h 50m

Cork

Sat 15/8

08:00-21:15

1 stop13h 15m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 21/7

07:35-14:05

1 stop6h 30m

Dublin

Tue 28/7

20:20-07:05

1 stop10h 45m

£76

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 5/8

15:40-23:55

1 stop8h 15m

Cork

Wed 12/8

09:55-15:15

1 stop5h 20m

£76

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 6/8

22:45-08:20

1 stop9h 35m

Cork

Wed 12/8

09:55-15:15

1 stop5h 20m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 29/7

07:30-21:30

1 stop14h 00m

Dublin

Fri 31/7

07:40-19:30

1 stop11h 50m

£78

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Mon 13/7

06:40-16:10

3 stops33h 30m

Shannon

Mon 20/7

21:15-21:05

3 stops23h 50m

£659
Fastest return journey

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Wed 16/9

06:30-11:20

1 stop4h 50m

Shannon

Sat 19/9

07:30-15:30

1 stop8h 00m

£689

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Wed 16/9

06:30-11:20

1 stop4h 50m

Shannon

Sat 19/9

07:30-15:30

1 stop8h 00m

£690

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ireland from

How to get the cheapest flight ticket from Belfast to Ireland

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 Belfast to Ireland?

British Airways is the most popular carrier operating from Belfast to Ireland

Cheap Belfast to Ireland flight deals and tips

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

Fastest flight time

3h 30m

Direct flights

None
The fastest flight from Belfast to Ireland takes 3h 30m
There are no direct flights from Belfast to Ireland. There are no popular flight routes from Belfast to Ireland.
Search flight deals

Frequently asked questions about flying from Belfast to Ireland

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

    Prices for flights from Belfast to Ireland are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to Ireland.

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

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Belfast to Ireland

Compare and see reviews for airlines that fly from Belfast to Ireland with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £39Free CancellationRating
6.9
5,423 reviews
Search Ryanair flights
Aer LingusPriceFrom £76Free CancellationRating
7.3
1,628 reviews
Search Aer Lingus flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to Ireland for you.

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

All flight searches from Belfast to Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

Yes momondo offers price alerts on flights to Ireland from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Ireland

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Popular flights according to clicks in the last 7 days on momondo
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