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Cheap flights from Belfast to Dublin from €44

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 20/4. 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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Find the cheapest flights from Belfast to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 - 20:30
BFS
-
DUB
7h 45m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
€85Multiple Airlines
Thu, 7 May - Sun, 10 May
Multiple Airlines Logo
08:55 - 16:00
BFS
-
DUB
7h 05m
1 stop
Multiple Airlines Logo
13:30 - 19:30
DUB
-
BFS
6h 00m
1 stop
€86Multiple Airlines
Fri, 8 May - Fri, 15 May
Multiple Airlines Logo
13:55 - 22:40
BFS
-
DUB
8h 45m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
€87Multiple Airlines
Thu, 4 Jun - Mon, 8 Jun
Multiple Airlines Logo
08:55 - 16:00
BFS
-
DUB
7h 05m
1 stop
Multiple Airlines Logo
10:05 - 15:15
DUB
-
BFS
5h 10m
1 stop
€88Multiple Airlines
Fri, 8 May - Wed, 13 May
Multiple Airlines Logo
09:40 - 23:00
BFS
-
DUB
13h 20m
1 stop
Multiple Airlines Logo
20:20 - 09:05
DUB
-
BFS
12h 45m
1 stop
€89Multiple Airlines
Fri, 1 May - Fri, 8 May
Multiple Airlines Logo
08:55 - 16:00
BFS
-
DUB
7h 05m
1 stop
Multiple Airlines Logo
10:05 - 15:15
DUB
-
BFS
5h 10m
1 stop
€90Multiple Airlines
Fri, 8 May - Wed, 13 May
Multiple Airlines Logo
08:40 - 20:10
BFS
-
DUB
11h 30m
1 stop
Multiple Airlines Logo
21:10 - 10:00
DUB
-
BFS
12h 50m
1 stop
€91Multiple Airlines
Mon, 25 May - Mon, 1 Jun
Multiple Airlines Logo
06:55 - 14:05
BFS
-
DUB
7h 10m
1 stop
Multiple Airlines Logo
20:25 - 09:35
DUB
-
BFS
13h 10m
1 stop
€91Multiple Airlines
Sat, 9 May - Sat, 16 May
Aer Lingus Logo
09:50 - 14:50
BHD
-
DUB
5h 00m
1 stop
Aer Lingus Logo
11:30 - 14:55
DUB
-
BHD
3h 25m
1 stop
€213Aer Lingus
Thu, 4 Jun - Mon, 8 Jun
British Airways Logo
14:20 - 19:30
BHD
-
DUB
5h 10m
1 stop
British Airways Logo
20:30 - 08:50
DUB
-
BHD
12h 20m
1 stop
€221British Airways
Thu, 4 Jun - Mon, 8 Jun

British Airways flights from Belfast to Dublin

Our best British Airways deals on Belfast to Dublin flight tickets
British Airways
4 Jun
BHD14:20Belfast City
5h 10m
1 stop
DUB19:30Dublin
8 Jun
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€221
British Airways
4 Jun
BHD06:30Belfast City
6h 25m
1 stop
DUB12:55Dublin
8 Jun
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€222
British Airways
26 Aug
BHD10:05Belfast City
9h 25m
1 stop
DUB19:30Dublin
27 Aug
DUB18:50Dublin
15h 20m
1 stop
BHD10:10Belfast City
€237

Aer Lingus flights from Belfast to Dublin

Our best Aer Lingus deals on Belfast to Dublin flight tickets
Aer Lingus
4 Jun
BHD09:50Belfast City
5h 00m
1 stop
DUB14:50Dublin
8 Jun
DUB11:30Dublin
3h 25m
1 stop
BHD14:55Belfast City
€213
Aer Lingus
4 Jun
BHD11:05Belfast City
7h 30m
1 stop
DUB18:35Dublin
8 Jun
DUB07:30Dublin
13h 35m
1 stop
BHD21:05Belfast City
€253
Aer Lingus
4 Jun
BHD11:05Belfast City
7h 30m
1 stop
DUB18:35Dublin
8 Jun
DUB07:30Dublin
13h 35m
1 stop
BHD21:05Belfast City
€344

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 13,528 searches. Data last updated 14 April 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

Thu 7/5

12:45-20:30

1 stop7h 45m

Dublin

Sun 10/5

23:10-08:15

1 stop9h 05m

€85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

08:55-16:00

1 stop7h 05m

Dublin

Fri 15/5

13:30-19:30

1 stop6h 00m

€86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 4/6

13:55-22:40

1 stop8h 45m

Dublin

Mon 8/6

20:35-10:00

1 stop13h 25m

€87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

08:55-16:00

1 stop7h 05m

Dublin

Wed 13/5

10:05-15:15

1 stop5h 10m

€88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 1/5

09:40-23:00

1 stop13h 20m

Dublin

Fri 8/5

20:20-09:05

1 stop12h 45m

€89

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

08:55-16:00

1 stop7h 05m

Dublin

Wed 13/5

10:05-15:15

1 stop5h 10m

€90

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 25/5

08:40-20:10

1 stop11h 30m

Dublin

Mon 1/6

21:10-10:00

1 stop12h 50m

€91

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 9/5

06:55-14:05

1 stop7h 10m

Dublin

Sat 16/5

20:25-09:35

1 stop13h 10m

€91
Fastest return journey

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 4/6

09:50-14:50

1 stop5h 00m

Dublin

Mon 8/6

11:30-14:55

1 stop3h 25m

€213

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 4/6

14:20-19:30

1 stop5h 10m

Dublin

Mon 8/6

20:30-08:50

1 stop12h 20m

€221

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 30m

Direct flights

None
The fastest flight from Belfast to Dublin takes 5h 30m
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?

    There are 140.9 km between Belfast and Dublin. 5h 30m 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 refresh daily.

  • How old do you have to be to fly from Belfast to Dublin Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Belfast to Dublin

  • 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?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Cavan
Wicklow
Dundalk
Naas
Tullamore
Kildare
Bray
Swords
Gorey
Leixlip
Mullingar
Malahide
Maynooth
Carlingford
Castleknock
Enniscorthy
Arklow
Thurles

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to Dublin?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to Dublin for you.

Can I find flights from Belfast to Dublin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Dublin from Belfast with this policy.

How can momondo help me find flights from Belfast to Dublin?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to Dublin.

I’m not ready to book a flight from Belfast to Dublin right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Dublin from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Dublin trip

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