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Cheap flights from Belfast to Ireland from £37

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 3/8. 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
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
19:20 - 08:25
BFS
-
ORK
13h 05m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£72Multiple Airlines
Fri, 5 Jun - Wed, 10 Jun
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£73Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
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, 3 Jun - Wed, 10 Jun
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
£74Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£75Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
17:25 - 22:20
ORK
-
BFS
4h 55m
1 stop
£75Multiple Airlines
Thu, 28 May - Thu, 4 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
17:25 - 22:20
ORK
-
BFS
4h 55m
1 stop
£76Multiple Airlines
Thu, 28 May - Thu, 4 Jun
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£76Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
British Airways Logo
06:30 - 16:10
BHD
-
SNN
9h 40m
1 stop
British Airways Logo
21:15 - 08:50
SNN
-
BHD
11h 35m
1 stop
£343British Airways
Tue, 16 Jun - Wed, 17 Jun
British Airways Logo
13:45 - 20:35
BHD
-
SNN
6h 50m
1 stop
British Airways Logo
21:15 - 08:50
SNN
-
BHD
11h 35m
1 stop
£343British Airways
Tue, 16 Jun - Wed, 17 Jun

Aer Lingus flights from Belfast to Ireland

Our best Aer Lingus deals on Belfast to Ireland flight tickets
Aer Lingus
4 Jun
BHD17:05Belfast City
4h 25m
1 stop
DUB21:30Dublin
7 Jun
DUB06:30Dublin
13h 35m
1 stop
BHD20:05Belfast City
£158
Aer Lingus
28 May
BHD12:50Belfast City
6h 00m
1 stop
ORK18:50Cork
4 Jun
ORK07:10Cork
6h 30m
1 stop
BHD13:40Belfast City
£393

British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
30 May
BHD07:05Belfast City
10h 45m
1 stop
DUB17:50Dublin
3 Jun
DUB20:30Dublin
17h 05m
1 stop
BHD13:35Belfast City
£203
British Airways
30 May
BHD07:05Belfast City
12h 20m
1 stop
DUB19:25Dublin
3 Jun
DUB20:30Dublin
17h 05m
1 stop
BHD13:35Belfast City
£204
British Airways
30 May
BHD07:05Belfast City
10h 45m
1 stop
DUB17:50Dublin
3 Jun
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£208

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 11 May 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

Fri 5/6

19:20-08:25

1 stop13h 05m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

£72

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

15:40-20:45

1 stop5h 05m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

£73
Fastest return journey

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 3/6

15:40-23:55

1 stop8h 15m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

£73

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

£74

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

07:30-12:30

1 stop5h 00m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

£75

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 28/5

22:45-08:20

1 stop9h 35m

Cork

Thu 4/6

17:25-22:20

1 stop4h 55m

£75

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 28/5

22:45-08:20

1 stop9h 35m

Cork

Thu 4/6

17:25-22:20

1 stop4h 55m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

15:40-20:45

1 stop5h 05m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

£76

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Tue 16/6

06:30-16:10

1 stop9h 40m

Shannon

Wed 17/6

21:15-08:50

1 stop11h 35m

£343

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Tue 16/6

13:45-20:35

1 stop6h 50m

Shannon

Wed 17/6

21:15-08:50

1 stop11h 35m

£343

Flights are sorted by cheapest return flights first.

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

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

4h 10m

Direct flights

None
The fastest flight from Belfast to Ireland takes 4h 10m
There are no direct flights from Belfast to Ireland. There are no popular flight routes from Belfast to Ireland.
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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 £38Free CancellationRating
6.9
5,371 reviews
Search Ryanair flights
Aer LingusPriceFrom £68Free CancellationRating
7.3
1,551 reviews
Search Aer Lingus flights

Frequently asked questions about flying from Belfast to Ireland

  • How do I get Price Alerts for flights from Belfast to Ireland?

    Price Alerts will notify you by email when the price for flights to Ireland from Belfast decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Belfast to Ireland with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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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