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Cheap flights from Belfast Intl Airport to Dublin from £39

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 Intl Airport to Dublin departing on 15/4. 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 Intl Airport 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
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
£71Multiple Airlines
Thu, 14 May - Thu, 21 May
Multiple Airlines Logo
18:50 - 23:20
BFS
-
DUB
4h 30m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£72Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
16:40 - 23:20
BFS
-
DUB
6h 40m
1 stop
Multiple Airlines Logo
06:05 - 10:00
DUB
-
BFS
3h 55m
1 stop
£73Multiple Airlines
Tue, 28 Apr - Tue, 5 May
Multiple Airlines Logo
08:55 - 16:00
BFS
-
DUB
7h 05m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£75Multiple Airlines
Fri, 8 May - Mon, 11 May
Multiple Airlines Logo
17:05 - 23:59
BFS
-
DUB
6h 54m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£76Multiple Airlines
Fri, 8 May - Mon, 11 May
Multiple Airlines Logo
17:05 - 23:59
BFS
-
DUB
6h 54m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£77Multiple Airlines
Fri, 8 May - Mon, 11 May
Multiple Airlines Logo
17:05 - 23:59
BFS
-
DUB
6h 54m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£78Multiple Airlines
Fri, 8 May - Mon, 11 May
Multiple Airlines Logo
18:50 - 00:05
BFS
-
DUB
5h 15m
1 stop
Multiple Airlines Logo
06:55 - 15:20
DUB
-
BFS
8h 25m
1 stop
£79Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Multiple Airlines Logo
08:55 - 21:10
BFS
-
DUB
12h 15m
1 stop
Multiple Airlines Logo
22:20 - 09:05
DUB
-
BFS
10h 45m
1 stop
£80Multiple Airlines
Fri, 15 May - Fri, 22 May
Multiple Airlines Logo
16:55 - 23:05
BFS
-
DUB
6h 10m
1 stop
Multiple Airlines Logo
21:45 - 09:35
DUB
-
BFS
11h 50m
1 stop
£81Multiple Airlines
Sat, 25 Apr - Sat, 2 May

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport 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 2 April 2026.
Use the filters below to find and compare flights from Belfast Intl Airport 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 14/5

12:45-20:30

1 stop7h 45m

Dublin

Thu 21/5

13:00-22:20

1 stop9h 20m

£71

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 11/5

18:50-23:20

1 stop4h 30m

Dublin

Mon 18/5

20:35-10:00

1 stop13h 25m

£72
Fastest return journey

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 28/4

16:40-23:20

1 stop6h 40m

Dublin

Tue 5/5

06:05-10:00

1 stop3h 55m

£73

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

08:55-16:00

1 stop7h 05m

Dublin

Mon 11/5

20:35-10:00

1 stop13h 25m

£75

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

17:05-23:59

1 stop6h 54m

Dublin

Mon 11/5

20:35-10:00

1 stop13h 25m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

17:05-23:59

1 stop6h 54m

Dublin

Mon 11/5

20:35-10:00

1 stop13h 25m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 8/5

17:05-23:59

1 stop6h 54m

Dublin

Mon 11/5

20:35-10:00

1 stop13h 25m

£78

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 27/4

18:50-00:05

1 stop5h 15m

Dublin

Mon 4/5

06:55-15:20

1 stop8h 25m

£79

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 15/5

08:55-21:10

1 stop12h 15m

Dublin

Fri 22/5

22:20-09:05

1 stop10h 45m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 25/4

16:55-23:05

1 stop6h 10m

Dublin

Sat 2/5

21:45-09:35

1 stop11h 50m

£81

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 Intl Airport 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 Intl to Dublin?

Ryanair is the most popular carrier operating from Belfast Intl to Dublin

When to book flights from Belfast Intl Airport to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Belfast Intl Airport to Dublin (BFS to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to Dublin

Fastest flight time

7h 05m

Direct flights

None
The fastest flight from Belfast Intl Airport to Dublin takes 7h 05m
There are no direct flights from Belfast Intl Airport to Dublin. There are no popular flight routes from Belfast Intl Airport to Dublin.
Search flight deals

Frequently asked questions about flying from Belfast Intl Airport to Dublin

  • How far is Belfast Intl to Dublin by plane?

    Belfast Intl and Dublin are 90.7 mi apart from one another. By plane, this route typically takes 7h 05m.

  • When did momondo last update prices for flights from Belfast Intl Airport to Dublin Airport?

    Prices for flights from Belfast Intl Airport to Dublin Airport were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Dublin Airport.

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

    The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Dublin?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to Dublin. momondo saves you time and could save you money on your trip.

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 all potential Belfast to Dublin flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Belfast to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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