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Cheap flights from Belfast to Dublin from £46

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 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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
21:40 - 09:05
DUB
-
BFS
11h 25m
1 stop
£80Multiple Airlines
Sat, 7 Mar - Mon, 9 Mar
Multiple Airlines Logo
07:55 - 13:25
BFS
-
DUB
5h 30m
1 stop
Multiple Airlines Logo
06:45 - 10:20
DUB
-
BFS
3h 35m
1 stop
£82Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
18:00 - 23:25
BFS
-
DUB
5h 25m
1 stop
Multiple Airlines Logo
06:30 - 12:00
DUB
-
BFS
5h 30m
1 stop
£86Multiple Airlines
Fri, 20 Mar - Sun, 22 Mar
Multiple Airlines Logo
20:55 - 09:40
BFS
-
DUB
12h 45m
1 stop
Multiple Airlines Logo
14:40 - 18:05
DUB
-
BFS
3h 25m
1 stop
£91Multiple Airlines
Wed, 11 Mar - Thu, 12 Mar
Multiple Airlines Logo
17:45 - 21:45
BHD
-
DUB
4h 00m
1 stop
Multiple Airlines Logo
06:50 - 11:20
DUB
-
BHD
4h 30m
1 stop
£92Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
07:25 - 20:05
BHD
-
DUB
12h 40m
1 stop
Multiple Airlines Logo
06:15 - 16:05
DUB
-
BHD
9h 50m
1 stop
£94Multiple Airlines
Wed, 11 Mar - Thu, 12 Mar
Aer Lingus Logo
09:45 - 14:55
BHD
-
DUB
5h 10m
1 stop
Aer Lingus Logo
15:30 - 20:50
DUB
-
BHD
5h 20m
1 stop
£167Aer Lingus
Sat, 7 Mar - Mon, 9 Mar
Aer Lingus Logo
09:45 - 14:55
BHD
-
DUB
5h 10m
1 stop
Aer Lingus Logo
15:30 - 20:50
DUB
-
BHD
5h 20m
1 stop
£167Aer Lingus
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
15:05 - 19:50
BHD
-
DUB
4h 45m
1 stop
British Airways Logo
20:40 - 10:40
DUB
-
BHD
14h 00m
1 stop
£169British Airways
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
13:45 - 18:40
BHD
-
DUB
4h 55m
1 stop
British Airways Logo
20:30 - 08:50
DUB
-
BHD
12h 20m
1 stop
£174British Airways
Tue, 21 Apr - Wed, 22 Apr

Aer Lingus flights from Belfast to Dublin

Our best Aer Lingus deals on Belfast to Dublin flight tickets
Aer Lingus
7 Mar
BHD09:45Belfast City
5h 10m
1 stop
DUB14:55Dublin
9 Mar
DUB15:30Dublin
5h 20m
1 stop
BHD20:50Belfast City
£167
Aer Lingus
7 Mar
BHD09:45Belfast City
5h 10m
1 stop
DUB14:55Dublin
9 Mar
DUB15:30Dublin
5h 20m
1 stop
BHD20:50Belfast City
£167
Aer Lingus
15 Mar
BHD16:55Belfast City
4h 15m
1 stop
DUB21:10Dublin
20 Mar
DUB11:45Dublin
6h 40m
1 stop
BHD18:25Belfast City
£199

British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
7 Mar
BHD15:05Belfast City
4h 45m
1 stop
DUB19:50Dublin
9 Mar
DUB20:40Dublin
14h 00m
1 stop
BHD10:40Belfast City
£169
British Airways
21 Apr
BHD13:45Belfast City
4h 55m
1 stop
DUB18:40Dublin
22 Apr
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£174
British Airways
2 Jun
BHD13:45Belfast City
5h 50m
1 stop
DUB19:35Dublin
3 Jun
DUB20:30Dublin
12h 20m
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 29 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

21:40-09:05

1 stop11h 25m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 25/2

07:55-13:25

1 stop5h 30m

Dublin

Wed 4/3

06:45-10:20

1 stop3h 35m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 20/3

18:00-23:25

1 stop5h 25m

Dublin

Sun 22/3

06:30-12:00

1 stop5h 30m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 11/3

20:55-09:40

1 stop12h 45m

Dublin

Thu 12/3

14:40-18:05

1 stop3h 25m

£91

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Wed 25/2

17:45-21:45

1 stop4h 00m

Dublin

Wed 4/3

06:50-11:20

1 stop4h 30m

£92

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Wed 11/3

07:25-20:05

1 stop12h 40m

Dublin

Thu 12/3

06:15-16:05

1 stop9h 50m

£94

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

09:45-14:55

1 stop5h 10m

Dublin

Mon 9/3

15:30-20:50

1 stop5h 20m

£167

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

09:45-14:55

1 stop5h 10m

Dublin

Mon 9/3

15:30-20:50

1 stop5h 20m

£167

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

15:05-19:50

1 stop4h 45m

Dublin

Mon 9/3

20:40-10:40

1 stop14h 00m

£169

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Tue 21/4

13:45-18:40

1 stop4h 55m

Dublin

Wed 22/4

20:30-08:50

1 stop12h 20m

£174

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 00m

Direct flights

None
The fastest flight from Belfast to Dublin takes 4h 00m
There are no direct flights from Belfast to Dublin. There are no popular flight routes from Belfast to Dublin.
Search flight deals

  • How far is Belfast to Dublin by plane?

    The distance between Belfast and Dublin is about 87.5 mi. 4h 00m 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 £37Free CancellationRating
6.9
5,255 reviews
Search Ryanair flights
Aer LingusPriceFrom £68Free CancellationRating
7.2
1,443 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
Enniscorthy
Wicklow
Arklow
Gorey
Leixlip
Maynooth
Naas
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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