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Cheap flights from Belfast to Dublin from £45

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 Dublin departing on 15/2. 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 Belfast to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
23:10 - 07:50
BFS
-
DUB
8h 40m
1 stop
Multiple Airlines Logo
17:00 - 21:55
DUB
-
BFS
4h 55m
1 stop
£81Multiple Airlines
Sat, 7 Mar - Mon, 9 Mar
Multiple Airlines Logo
16:35 - 21:35
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
12:25 - 16:10
DUB
-
BFS
3h 45m
1 stop
£85Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
18:00 - 23:25
BFS
-
DUB
5h 25m
1 stop
Multiple Airlines Logo
12:00 - 21:05
DUB
-
BFS
9h 05m
1 stop
£86Multiple Airlines
Fri, 6 Mar - Fri, 13 Mar
Multiple Airlines Logo
22:25 - 11:10
BFS
-
DUB
12h 45m
1 stop
Multiple Airlines Logo
06:15 - 09:45
DUB
-
BFS
3h 30m
1 stop
£88Multiple Airlines
Sat, 7 Mar - Mon, 9 Mar
Multiple Airlines Logo
06:30 - 15:30
BFS
-
DUB
9h 00m
1 stop
Multiple Airlines Logo
07:20 - 16:15
DUB
-
BFS
8h 55m
1 stop
£88Multiple Airlines
Tue, 17 Feb - Tue, 24 Feb
Multiple Airlines Logo
20:25 - 09:05
BFS
-
DUB
12h 40m
1 stop
Multiple Airlines Logo
19:35 - 08:20
DUB
-
BFS
12h 45m
1 stop
£90Multiple Airlines
Tue, 17 Feb - Tue, 24 Feb
British Airways Logo
11:35 - 17:00
BHD
-
DUB
5h 25m
1 stop
British Airways Logo
10:45 - 18:40
DUB
-
BHD
7h 55m
1 stop
£170British Airways
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
06:35 - 15:05
BHD
-
DUB
8h 30m
1 stop
British Airways Logo
20:40 - 09:05
DUB
-
BHD
12h 25m
1 stop
£173British Airways
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
13:45 - 18:40
BHD
-
DUB
4h 55m
1 stop
British Airways Logo
19:45 - 08:50
DUB
-
BHD
13h 05m
1 stop
£175British Airways
Tue, 21 Apr - Wed, 22 Apr
Aer Lingus Logo
07:00 - 14:55
BHD
-
DUB
7h 55m
1 stop
Aer Lingus Logo
06:30 - 20:50
DUB
-
BHD
14h 20m
1 stop
£233Aer Lingus
Sat, 7 Mar - Mon, 9 Mar

British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
7 Mar
BHD11:35Belfast City
5h 25m
1 stop
DUB17:00Dublin
9 Mar
DUB10:45Dublin
7h 55m
1 stop
BHD18:40Belfast City
£170
British Airways
7 Mar
BHD06:35Belfast City
8h 30m
1 stop
DUB15:05Dublin
9 Mar
DUB20:40Dublin
12h 25m
1 stop
BHD09:05Belfast City
£172
British Airways
21 Apr
BHD13:45Belfast City
4h 55m
1 stop
DUB18:40Dublin
22 Apr
DUB19:45Dublin
13h 05m
1 stop
BHD08:50Belfast City
£175

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 7/3

23:10-07:50

1 stop8h 40m

Dublin

Mon 9/3

17:00-21:55

1 stop4h 55m

£81

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 5/3

16:35-21:35

1 stop5h 00m

Dublin

Thu 12/3

12:25-16:10

1 stop3h 45m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 6/3

18:00-23:25

1 stop5h 25m

Dublin

Fri 13/3

12:00-21:05

1 stop9h 05m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 7/3

22:25-11:10

1 stop12h 45m

Dublin

Mon 9/3

06:15-09:45

1 stop3h 30m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 17/2

06:30-15:30

1 stop9h 00m

Dublin

Tue 24/2

07:20-16:15

1 stop8h 55m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 17/2

20:25-09:05

1 stop12h 40m

Dublin

Tue 24/2

19:35-08:20

1 stop12h 45m

£90

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

11:35-17:00

1 stop5h 25m

Dublin

Mon 9/3

10:45-18:40

1 stop7h 55m

£170

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

06:35-15:05

1 stop8h 30m

Dublin

Mon 9/3

20:40-09:05

1 stop12h 25m

£172

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Tue 21/4

13:45-18:40

1 stop4h 55m

Dublin

Wed 22/4

19:45-08:50

1 stop13h 05m

£175

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

07:00-14:55

1 stop7h 55m

Dublin

Mon 9/3

06:30-20:50

1 stop14h 20m

£233

Flights are sorted by cheapest return flights first.

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

Cheap Belfast to Dublin flight deals and tips

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

Fastest flight time

4h 10m

Direct flights

None
The fastest flight from Belfast to Dublin takes 4h 10m
There are no direct flights from Belfast to Dublin. There are no popular flight routes from Belfast to Dublin.
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  • How far is Belfast to Dublin by plane?

    The distance between Belfast and Dublin is about 87.5 mi. 4h 10m is a normal flight duration for this route.

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

    Prices for flights from Belfast to Dublin Airport were last updated today.

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

    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 Belfast to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents you'll need for your trip to Dublin Airport 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 Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Belfast to Dublin

Compare and see reviews for airlines that fly from Belfast to Dublin with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £38Free CancellationRating
6.9
5,248 reviews
Search Ryanair flights
Aer LingusPriceFrom £59Free CancellationRating
7.2
1,437 reviews
Search Aer Lingus flights

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

    Search flight deals from Belfast to Dublin. While viewing offers you’ll have the option to create a Price Alert.

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

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Cavan
Dundalk
Athlone
Bray
Carlingford
Malahide
Kildare
Mullingar
Drogheda
Wicklow
Enniscorthy
Arklow
Gorey
Naas
Leixlip
Maynooth
Tullamore
Portmarnock

Why use momondo?

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

It is quick and easy to find Belfast to Dublin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dublin that suits you.

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

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

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

Once you have performed a search for Belfast to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

An easier way to manage your Dublin trip

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