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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 4/9. 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
1 adult, Economy, 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
07:30 - 16:00
BFS
-
DUB
8h 30m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
£71Multiple Airlines
Wed, 19 Aug - Wed, 26 Aug
Multiple Airlines Logo
07:30 - 16:00
BFS
-
DUB
8h 30m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
£72Multiple Airlines
Wed, 19 Aug - Wed, 26 Aug
Multiple Airlines Logo
07:30 - 14:50
BFS
-
DUB
7h 20m
1 stop
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
£73Multiple Airlines
Wed, 5 Aug - Thu, 6 Aug
Multiple Airlines Logo
08:10 - 20:30
BFS
-
DUB
12h 20m
1 stop
Multiple Airlines Logo
10:20 - 22:20
DUB
-
BFS
12h 00m
1 stop
£74Multiple Airlines
Thu, 27 Aug - Thu, 3 Sep
Multiple Airlines Logo
08:40 - 14:55
BFS
-
DUB
6h 15m
1 stop
Multiple Airlines Logo
06:10 - 19:15
DUB
-
BFS
13h 05m
1 stop
£75Multiple Airlines
Mon, 24 Aug - Thu, 27 Aug
Multiple Airlines Logo
22:05 - 08:25
BFS
-
DUB
10h 20m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£76Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
07:30 - 21:30
BFS
-
DUB
14h 00m
1 stop
Multiple Airlines Logo
15:45 - 22:20
DUB
-
BFS
6h 35m
1 stop
£77Multiple Airlines
Wed, 5 Aug - Thu, 6 Aug
Multiple Airlines Logo
07:30 - 21:30
BFS
-
DUB
14h 00m
1 stop
Multiple Airlines Logo
15:45 - 22:20
DUB
-
BFS
6h 35m
1 stop
£78Multiple Airlines
Wed, 5 Aug - Thu, 6 Aug
Multiple Airlines Logo
07:30 - 14:50
BFS
-
DUB
7h 20m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
£80Multiple Airlines
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
07:30 - 21:30
BFS
-
DUB
14h 00m
1 stop
Multiple Airlines Logo
15:45 - 22:20
DUB
-
BFS
6h 35m
1 stop
£80Multiple Airlines
Wed, 5 Aug - Thu, 6 Aug

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British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
26 Sept
BHD19:05Belfast City
12h 40m
1 stop
DUB07:45Dublin
30 Sept
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£164
British Airways
26 Sept
BHD19:05Belfast City
12h 40m
1 stop
DUB07:45Dublin
30 Sept
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£165
British Airways
3 Sept
BHD19:30Belfast City
12h 15m
1 stop
DUB07:45Dublin
7 Sept
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£178

KLM flights from Belfast to Dublin

Our best KLM deals on Belfast to Dublin flight tickets
KLM
3 Sept
BHD17:30Belfast City
14h 50m
1 stop
DUB08:20Dublin
7 Sept
DUB08:55Dublin
24h 25m
1 stop
BHD09:20Belfast City
£276
KLM
3 Sept
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
7 Sept
DUB11:10Dublin
5h 45m
1 stop
BHD16:55Belfast City
£514

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 15 July 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

Cheapest return flight

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

07:30-16:00

1 stop8h 30m

Dublin

Wed 26/8

06:30-15:15

1 stop8h 45m

£71

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

07:30-16:00

1 stop8h 30m

Dublin

Wed 26/8

06:30-15:15

1 stop8h 45m

£72

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 5/8

07:30-14:50

1 stop7h 20m

Dublin

Thu 6/8

13:00-22:20

1 stop9h 20m

£73

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 27/8

08:10-20:30

1 stop12h 20m

Dublin

Thu 3/9

10:20-22:20

1 stop12h 00m

£74

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 24/8

08:40-14:55

1 stop6h 15m

Dublin

Thu 27/8

06:10-19:15

1 stop13h 05m

£75

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 11/8

22:05-08:25

1 stop10h 20m

Dublin

Tue 18/8

20:30-08:05

1 stop11h 35m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 5/8

07:30-21:30

1 stop14h 00m

Dublin

Thu 6/8

15:45-22:20

1 stop6h 35m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 5/8

07:30-21:30

1 stop14h 00m

Dublin

Thu 6/8

15:45-22:20

1 stop6h 35m

£78
Fastest return journey

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 26/8

07:30-14:50

1 stop7h 20m

Dublin

Wed 2/9

06:30-15:15

1 stop8h 45m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 5/8

07:30-21:30

1 stop14h 00m

Dublin

Thu 6/8

15:45-22:20

1 stop6h 35m

£80

Flights are sorted by cheapest return flights first.

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

See travel insights to Dublin from

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 airline that flies from Belfast to Dublin?

Aer Lingus is the most popular carrier operating from Belfast to Dublin

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 25m

Direct flights

None
The fastest flight from Belfast to Dublin takes 3h 25m
There are no direct flights from Belfast to Dublin. There are no popular flight routes from Belfast to Dublin.
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Frequently asked questions about flying from Belfast to Dublin

  • How far is Belfast to Dublin by plane?

    The distance between Belfast and Dublin is about 87.5 mi. 3h 25m 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 £28Free CancellationRating
6.9
5,438 reviews
Search Ryanair flights
Aer LingusPriceFrom £75Free CancellationRating
7.3
1,667 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
Cavan
Swords
Dundalk
Athlone
Carlingford
Malahide
Wicklow
Bray
Drogheda
Kildare
Mullingar
Arklow
Enniscorthy
Gorey
Naas
Tullamore
Maynooth
Leixlip
Castleknock

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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