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Cheap flights from Belfast to Dublin from £42

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 15/6. 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
07:35 - 16:25
BFS
-
DUB
8h 50m
1 stop
Multiple Airlines Logo
20:20 - 07:05
DUB
-
BFS
10h 45m
1 stop
£76Multiple Airlines
Tue, 23 Jun - Tue, 23 Jun
Multiple Airlines Logo
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
Multiple Airlines Logo
06:55 - 15:20
DUB
-
BFS
8h 25m
1 stop
£77Multiple Airlines
Thu, 18 Jun - Mon, 22 Jun
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
Multiple Airlines Logo
08:15 - 21:15
DUB
-
BFS
13h 00m
1 stop
£78Multiple Airlines
Wed, 1 Jul - Sat, 11 Jul
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
22:20 - 09:05
DUB
-
BFS
10h 45m
1 stop
£79Multiple Airlines
Wed, 22 Jul - Fri, 31 Jul
Multiple Airlines Logo
07:30 - 16:00
BFS
-
DUB
8h 30m
1 stop
Multiple Airlines Logo
06:05 - 18:55
DUB
-
BFS
12h 50m
1 stop
£79Multiple Airlines
Wed, 22 Jul - Fri, 31 Jul
Multiple Airlines Logo
07:40 - 21:20
BFS
-
DUB
13h 40m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
£80Multiple Airlines
Sat, 25 Jul - Sun, 26 Jul
Multiple Airlines Logo
07:40 - 21:20
BFS
-
DUB
13h 40m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
£81Multiple Airlines
Sat, 25 Jul - Sun, 26 Jul
Multiple Airlines Logo
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
£82Multiple Airlines
Thu, 23 Jul - Sun, 26 Jul
Multiple Airlines Logo
21:40 - 09:10
BFS
-
DUB
11h 30m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
£85Multiple Airlines
Sat, 20 Jun - Sun, 21 Jun
Multiple Airlines Logo
07:30 - 14:50
BFS
-
DUB
7h 20m
1 stop
Multiple Airlines Logo
18:30 - 07:50
DUB
-
BFS
13h 20m
1 stop
£91Multiple Airlines
Wed, 15 Jul - Wed, 15 Jul

British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
28 Jul
BHD13:45Belfast City
5h 50m
1 stop
DUB19:35Dublin
29 Jul
DUB19:45Dublin
13h 05m
1 stop
BHD08:50Belfast City
£166
British Airways
23 Jul
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
26 Jul
DUB08:35Dublin
24h 05m
1 stop
BHD08:40Belfast City
£178
British Airways
18 Jul
BHD09:35Belfast City
22h 10m
1 stop
DUB07:45Dublin
22 Jul
DUB17:50Dublin
15h 00m
1 stop
BHD08:50Belfast City
£180

KLM flights from Belfast to Dublin

Our best KLM deals on Belfast to Dublin flight tickets
KLM
23 Jul
BHD17:30Belfast City
14h 50m
1 stop
DUB08:20Dublin
26 Jul
DUB13:25Dublin
19h 55m
1 stop
BHD09:20Belfast City
£376
KLM
18 Jun
BHD17:30Belfast City
23h 10m
1 stop
DUB16:40Dublin
22 Jun
DUB08:55Dublin
24h 25m
1 stop
BHD09:20Belfast City
£471

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 3 June 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

Tue 23/6

07:35-16:25

1 stop8h 50m

Dublin

Tue 23/6

20:20-07:05

1 stop10h 45m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 18/6

12:45-23:55

1 stop11h 10m

Dublin

Mon 22/6

06:55-15:20

1 stop8h 25m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 1/7

15:40-20:45

1 stop5h 05m

Dublin

Sat 11/7

08:15-21:15

1 stop13h 00m

£78
Fastest return journey

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 22/7

15:40-21:30

1 stop5h 50m

Dublin

Fri 31/7

22:20-09:05

1 stop10h 45m

£79

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 22/7

07:30-16:00

1 stop8h 30m

Dublin

Fri 31/7

06:05-18:55

1 stop12h 50m

£79

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 25/7

07:40-21:20

1 stop13h 40m

Dublin

Sun 26/7

23:10-08:15

1 stop9h 05m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 25/7

07:40-21:20

1 stop13h 40m

Dublin

Sun 26/7

23:10-08:15

1 stop9h 05m

£81

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 23/7

12:45-23:55

1 stop11h 10m

Dublin

Sun 26/7

23:10-08:15

1 stop9h 05m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 20/6

21:40-09:10

1 stop11h 30m

Dublin

Sun 21/6

23:10-08:15

1 stop9h 05m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 15/7

07:30-14:50

1 stop7h 20m

Dublin

Wed 15/7

18:30-07:50

1 stop13h 20m

£91

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

British Airways and Loganair are the most popular carriers 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

5h 50m

Direct flights

None
The fastest flight from Belfast to Dublin takes 5h 50m
There are no direct flights from Belfast to Dublin. There are no popular flight routes from Belfast to Dublin.
Search flight deals

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. 5h 50m 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
5,393 reviews
Search Ryanair flights
Aer LingusPriceFrom £69Free CancellationRating
7.3
1,592 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
Carlingford
Malahide
Bray
Drogheda
Wicklow
Kildare
Mullingar
Arklow
Enniscorthy
Naas
Tullamore
Gorey
Maynooth
Portmarnock
Leixlip

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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