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Cheap flights from Belfast Intl Airport to Dublin from £53

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 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Belfast Intl Airport to Dublin

Cheap return flights

Logo
08:40 - 15:20BFS-DUB
6h 40m1 stop
Logo
12:45 - 21:20DUB-BFS
8h 35m1 stop
£101
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Mo, 8 Sep - Mi, 10 Sep
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07:25 - 12:35BFS-DUB
5h 10m1 stop
Logo
21:35 - 09:00DUB-BFS
11h 25m1 stop
£103
Find Deal
Di, 2 Sep - Mi, 3 Sep
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07:25 - 14:35BFS-DUB
7h 10m1 stop
Logo
06:30 - 10:25DUB-BFS
3h 55m1 stop
£104
Find Deal
Mi, 10 Sep - Mi, 17 Sep
Logo
07:45 - 17:20BFS-DUB
9h 35m1 stop
Logo
08:25 - 14:35DUB-BFS
6h 10m1 stop
£104
Find Deal
Di, 2 Sep - Mi, 3 Sep
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15:55 - 23:40BFS-DUB
7h 45m1 stop
Logo
21:25 - 06:50DUB-BFS
9h 25m1 stop
£106
Find Deal
Do, 11 Sep - Di, 16 Sep
Logo
06:25 - 12:25BFS-DUB
6h 00m1 stop
Logo
18:30 - 07:50DUB-BFS
13h 20m1 stop
£108
Find Deal
Mi, 27 Aug - Mi, 3 Sep
Logo
07:15 - 12:50BFS-DUB
5h 35m1 stop
Logo
23:00 - 09:45DUB-BFS
10h 45m1 stop
£110
Find Deal
So, 14 Sep - So, 21 Sep
Logo
07:10 - 14:05BFS-DUB
6h 55m1 stop
Logo
17:05 - 22:15DUB-BFS
5h 10m1 stop
£110
Find Deal
Do, 28 Aug - Do, 4 Sep
Logo
08:20 - 16:45BFS-DUB
8h 25m1 stop
Logo
10:10 - 21:05DUB-BFS
10h 55m1 stop
£119
Find Deal
Do, 11 Sep - Mo, 15 Sep
Logo
08:20 - 14:45BFS-DUB
6h 25m1 stop
Logo
06:40 - 21:05DUB-BFS
14h 25m1 stop
£121
Find Deal
Do, 11 Sep - Mo, 15 Sep

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 1 August 2025.
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

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mo 8/9

08:40-15:20

1 stop6h 40m

Dublin

Mi 10/9

12:45-21:20

1 stop8h 35m

£101

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Di 2/9

07:25-12:35

1 stop5h 10m

Dublin

Mi 3/9

21:35-09:00

1 stop11h 25m

£103

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mi 10/9

07:25-14:35

1 stop7h 10m

Dublin

Mi 17/9

06:30-10:25

1 stop3h 55m

£104

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Di 2/9

07:45-17:20

1 stop9h 35m

Dublin

Mi 3/9

08:25-14:35

1 stop6h 10m

£104

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 11/9

15:55-23:40

1 stop7h 45m

Dublin

Di 16/9

21:25-06:50

1 stop9h 25m

£106

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mi 27/8

06:25-12:25

1 stop6h 00m

Dublin

Mi 3/9

18:30-07:50

1 stop13h 20m

£108

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

So 14/9

07:15-12:50

1 stop5h 35m

Dublin

So 21/9

23:00-09:45

1 stop10h 45m

£110

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 28/8

07:10-14:05

1 stop6h 55m

Dublin

Do 4/9

17:05-22:15

1 stop5h 10m

£110

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 11/9

08:20-16:45

1 stop8h 25m

Dublin

Mo 15/9

10:10-21:05

1 stop10h 55m

£119

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Do 11/9

08:20-14:45

1 stop6h 25m

Dublin

Mo 15/9

06:40-21:05

1 stop14h 25m

£121

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 time of day to depart on your flight to Dublin?

Flying to Dublin from Belfast Intl Airport 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 £159 on average. Flights to Dublin from Belfast Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Best price found

£53

Fastest flight time

3h 35m

Direct flights

None

Airports in Dublin

1 airport
The best one-way flight to Dublin from Belfast Intl Airport in the past 72 hours is £53. The best return flight deal from Belfast Intl Airport to Dublin found on momondo in the last 72 hours is £101.
The fastest flight from Belfast Intl Airport to Dublin takes 3h 35m
There are no direct flights from Belfast Intl Airport to Dublin. Popular non-direct route for this connection is Belfast Intl Airport - Dublin Airport.
There is 1 airport near Dublin: Dublin (DUB)
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  • 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 4h 35m.

  • 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
Swords
Kilkenny
Dundalk
Bray
Cavan
Athlone
Carlingford
Malahide
Kildare
Wicklow
Drogheda
Arklow
Mullingar
Enniscorthy
Gorey
Portmarnock
Naas
Tullamore
Leixlip
Maynooth

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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