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Cheap flights from Belfast to Dublin from £43

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 2/12. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:10 - 09:20BFS-DUB
13h 10m1 stop
Multiple Airlines Logo
21:40 - 09:05DUB-BFS
11h 25m1 stop
£82Multiple Airlines
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Do, 15 Jan - Mo, 19 Jan
Multiple Airlines Logo
14:45 - 19:10BFS-DUB
4h 25m1 stop
Multiple Airlines Logo
19:40 - 09:20DUB-BFS
13h 40m1 stop
£83Multiple Airlines
Find Deal
Do, 8 Jan - Mi, 14 Jan
Multiple Airlines Logo
07:05 - 19:00BFS-DUB
11h 55m1 stop
Multiple Airlines Logo
10:05 - 16:10DUB-BFS
6h 05m1 stop
£84Multiple Airlines
Find Deal
Do, 8 Jan - Do, 15 Jan
Multiple Airlines Logo
14:00 - 23:45BFS-DUB
9h 45m1 stop
Multiple Airlines Logo
06:20 - 14:55DUB-BFS
8h 35m1 stop
£85Multiple Airlines
Find Deal
Do, 15 Jan - Mo, 19 Jan
Multiple Airlines Logo
17:15 - 22:25BFS-DUB
5h 10m1 stop
Multiple Airlines Logo
15:00 - 20:25DUB-BFS
5h 25m1 stop
£86Multiple Airlines
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Do, 22 Jan - Fr, 23 Jan
Multiple Airlines Logo
18:55 - 07:50BFS-DUB
12h 55m1 stop
Multiple Airlines Logo
06:55 - 13:30DUB-BFS
6h 35m1 stop
£88Multiple Airlines
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Do, 15 Jan - So, 18 Jan
Aer Lingus Logo
14:25 - 18:10BHD-DUB
3h 45m1 stop
Aer Lingus Logo
06:40 - 11:20DUB-BHD
4h 40m1 stop
£133Aer Lingus
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Fr, 26 Dez - Fr, 2 Jan
British Airways Logo
06:35 - 12:15BHD-DUB
5h 40m1 stop
British Airways Logo
10:45 - 16:45DUB-BHD
6h 00m1 stop
£176British Airways
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Do, 15 Jan - So, 18 Jan
British Airways Logo
06:35 - 15:05BHD-DUB
8h 30m1 stop
British Airways Logo
17:55 - 07:40DUB-BHD
13h 45m1 stop
£177British Airways
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Sa, 17 Jan - Mo, 19 Jan
KLM Logo
17:20 - 22:10BHD-DUB
4h 50m1 stop
KLM Logo
05:55 - 16:50DUB-BHD
10h 55m1 stop
£209KLM
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Do, 15 Jan - Mo, 19 Jan

British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
15 Jan
BHD06:35Belfast City
5h 40m
1 stop
DUB12:15Dublin
18 Jan
DUB10:45Dublin
6h 00m
1 stop
BHD16:45Belfast City
£176
Find similar
British Airways
17 Jan
BHD06:35Belfast City
8h 30m
1 stop
DUB15:05Dublin
19 Jan
DUB17:55Dublin
13h 45m
1 stop
BHD07:40Belfast City
£177
Find similar
British Airways
11 Dec
BHD20:00Belfast City
11h 55m
1 stop
DUB07:55Dublin
15 Dec
DUB20:40Dublin
11h 00m
1 stop
BHD07:40Belfast City
£229
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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 27 November 2025.
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

Do 15/1

20:10-09:20

1 stop13h 10m

Dublin

Mo 19/1

21:40-09:05

1 stop11h 25m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 8/1

14:45-19:10

1 stop4h 25m

Dublin

Mi 14/1

19:40-09:20

1 stop13h 40m

£83

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 8/1

07:05-19:00

1 stop11h 55m

Dublin

Do 15/1

10:05-16:10

1 stop6h 05m

£84

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 15/1

14:00-23:45

1 stop9h 45m

Dublin

Mo 19/1

06:20-14:55

1 stop8h 35m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 22/1

17:15-22:25

1 stop5h 10m

Dublin

Fr 23/1

15:00-20:25

1 stop5h 25m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 15/1

18:55-07:50

1 stop12h 55m

Dublin

So 18/1

06:55-13:30

1 stop6h 35m

£88

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Fr 26/12

14:25-18:10

1 stop3h 45m

Dublin

Fr 2/1

06:40-11:20

1 stop4h 40m

£133

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Do 15/1

06:35-12:15

1 stop5h 40m

Dublin

So 18/1

10:45-16:45

1 stop6h 00m

£176

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sa 17/1

06:35-15:05

1 stop8h 30m

Dublin

Mo 19/1

17:55-07:40

1 stop13h 45m

£177

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Do 15/1

17:20-22:10

1 stop4h 50m

Dublin

Mo 19/1

05:55-16:50

1 stop10h 55m

£209

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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How to get the cheapest flight ticket from Belfast to Dublin

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 time of day to depart on your flight to Dublin?

Flying to Dublin from Belfast in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as £139 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £159 on average. Flights to Dublin from Belfast in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

3h 39m

Direct flights

None
The fastest flight from Belfast to Dublin takes 3h 39m
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. 3h 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 £39Free CancellationRating
6.8
5,207 reviews
Search Ryanair flights
Aer LingusPriceFrom £60Free CancellationRating
7.2
1,382 reviews
Search Aer Lingus flights

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
Gorey
Arklow
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.

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