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Cheap flights from Belfast to Dublin from £49

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 22/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

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Multiple Airlines Logo
13:35 - 22:25BFS-DUB
8h 50m1 stop
Multiple Airlines Logo
06:40 - 20:45DUB-BFS
14h 05m1 stop
£98Multiple Airlines
Find Deal
Thu, 8 Jan - Mon, 12 Jan
Multiple Airlines Logo
07:00 - 13:45BFS-DUB
6h 45m1 stop
Multiple Airlines Logo
11:45 - 19:55DUB-BFS
8h 10m1 stop
£102Multiple Airlines
Find Deal
Mon, 12 Jan - Tue, 13 Jan
Multiple Airlines Logo
21:05 - 08:50BFS-DUB
11h 45m1 stop
Multiple Airlines Logo
06:30 - 16:00DUB-BFS
9h 30m1 stop
£104Multiple Airlines
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Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
20:05 - 10:15BFS-DUB
14h 10m1 stop
Multiple Airlines Logo
08:30 - 16:35DUB-BFS
8h 05m1 stop
£106Multiple Airlines
Find Deal
Fri, 9 Jan - Sun, 11 Jan
Multiple Airlines Logo
08:05 - 21:25BFS-DUB
13h 20m1 stop
Multiple Airlines Logo
05:45 - 18:55DUB-BFS
13h 10m1 stop
£109Multiple Airlines
Find Deal
Fri, 12 Dec - Mon, 15 Dec
Multiple Airlines Logo
20:05 - 07:15BHD-DUB
11h 10m1 stop
Multiple Airlines Logo
08:30 - 15:15DUB-BHD
6h 45m1 stop
£109Multiple Airlines
Find Deal
Fri, 9 Jan - Sun, 11 Jan
Aer Lingus Logo
06:50 - 21:10BHD-DUB
14h 20m1 stop
Aer Lingus Logo
06:40 - 11:20DUB-BHD
4h 40m1 stop
£140Aer Lingus
Find Deal
Fri, 12 Dec - Mon, 15 Dec
Aer Lingus Logo
08:20 - 21:10BHD-DUB
12h 50m1 stop
Aer Lingus Logo
07:20 - 12:50DUB-BHD
5h 30m1 stop
£156Aer Lingus
Find Deal
Fri, 12 Dec - Mon, 15 Dec
British Airways Logo
06:35 - 14:05BHD-DUB
7h 30m1 stop
British Airways Logo
10:45 - 16:50DUB-BHD
6h 05m1 stop
£171British Airways
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Thu, 8 Jan - Mon, 12 Jan
Aer Lingus Logo
08:20 - 13:15BHD-DUB
4h 55m1 stop
Aer Lingus Logo
06:40 - 14:25DUB-BHD
7h 45m1 stop
£172Aer Lingus
Find Deal
Thu, 8 Jan - Mon, 12 Jan

British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
7 Mar
BHD06:35Belfast City
8h 30m
1 stop
DUB15:05Dublin
9 Mar
DUB08:50Dublin
5h 05m
1 stop
BHD13:55Belfast City
£170
Find similar
British Airways
8 Jan
BHD06:35Belfast City
7h 30m
1 stop
DUB14:05Dublin
12 Jan
DUB10:45Dublin
6h 05m
1 stop
BHD16:50Belfast City
£171
Find similar
British Airways
12 Dec
BHD19:35Belfast City
12h 20m
1 stop
DUB07:55Dublin
15 Dec
DUB20:40Dublin
11h 00m
1 stop
BHD07:40Belfast City
£192
Find similar

Aer Lingus flights from Belfast to Dublin

Our best Aer Lingus deals on Belfast to Dublin flight tickets
Aer Lingus
12 Dec
BHD08:20Belfast City
12h 50m
1 stop
DUB21:10Dublin
15 Dec
DUB07:20Dublin
5h 30m
1 stop
BHD12:50Belfast City
£156
Find similar
Aer Lingus
8 Jan
BHD08:20Belfast City
4h 55m
1 stop
DUB13:15Dublin
12 Jan
DUB06:40Dublin
7h 45m
1 stop
BHD14:25Belfast City
£172
Find similar

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 14 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

Thu 8/1

13:35-22:25

1 stop8h 50m

Dublin

Mon 12/1

06:40-20:45

1 stop14h 05m

£98

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 12/1

07:00-13:45

1 stop6h 45m

Dublin

Tue 13/1

11:45-19:55

1 stop8h 10m

£102

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 3/12

21:05-08:50

1 stop11h 45m

Dublin

Wed 10/12

06:30-16:00

1 stop9h 30m

£104

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 9/1

20:05-10:15

1 stop14h 10m

Dublin

Sun 11/1

08:30-16:35

1 stop8h 05m

£106

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 12/12

08:05-21:25

1 stop13h 20m

Dublin

Mon 15/12

05:45-18:55

1 stop13h 10m

£109

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Fri 9/1

20:05-07:15

1 stop11h 10m

Dublin

Sun 11/1

08:30-15:15

1 stop6h 45m

£109

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Fri 12/12

06:50-21:10

1 stop14h 20m

Dublin

Mon 15/12

06:40-11:20

1 stop4h 40m

£140

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Fri 12/12

08:20-21:10

1 stop12h 50m

Dublin

Mon 15/12

07:20-12:50

1 stop5h 30m

£156

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 8/1

06:35-14:05

1 stop7h 30m

Dublin

Mon 12/1

10:45-16:50

1 stop6h 05m

£171

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 8/1

08:20-13:15

1 stop4h 55m

Dublin

Mon 12/1

06:40-14:25

1 stop7h 45m

£172

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 £160 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

Direct flights

None
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 15m 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
5,191 reviews
Search Ryanair flights
Aer LingusPriceFrom £60Free CancellationRating
7.2
1,370 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
Drogheda
Mullingar
Gorey
Wicklow
Enniscorthy
Arklow
Naas
Maynooth
Leixlip
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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