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Cheap flights from Belfast Intl Airport 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 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
19:45 - 23:25
BFS
-
DUB
3h 40m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
£77Multiple Airlines
Rab, 8 Apr - Min, 12 Apr
Multiple Airlines Logo
12:45 - 23:25
BFS
-
DUB
10h 40m
1 stop
Multiple Airlines Logo
06:15 - 19:15
DUB
-
BFS
13h 00m
1 stop
£78Multiple Airlines
Kam, 2 Apr - Kam, 9 Apr
Multiple Airlines Logo
05:45 - 17:55
BFS
-
DUB
12h 10m
1 stop
Multiple Airlines Logo
13:30 - 21:55
DUB
-
BFS
8h 25m
1 stop
£79Multiple Airlines
Sab, 21 Mar - Sen, 23 Mar
Multiple Airlines Logo
23:10 - 09:20
BFS
-
DUB
10h 10m
1 stop
Multiple Airlines Logo
14:10 - 21:55
DUB
-
BFS
7h 45m
1 stop
£79Multiple Airlines
Sab, 28 Mar - Sen, 30 Mar
Multiple Airlines Logo
12:45 - 18:10
BFS
-
DUB
5h 25m
1 stop
Multiple Airlines Logo
10:20 - 15:20
DUB
-
BFS
5h 00m
1 stop
£82Multiple Airlines
Kam, 16 Apr - Kam, 23 Apr
Multiple Airlines Logo
22:25 - 09:25
BFS
-
DUB
11h 00m
1 stop
Multiple Airlines Logo
15:30 - 18:55
DUB
-
BFS
3h 25m
1 stop
£84Multiple Airlines
Sab, 21 Mar - Sen, 23 Mar
Multiple Airlines Logo
05:45 - 09:50
BFS
-
DUB
4h 05m
1 stop
Multiple Airlines Logo
21:30 - 07:25
DUB
-
BFS
9h 55m
1 stop
£87Multiple Airlines
Sel, 24 Mar - Kam, 26 Mar
Multiple Airlines Logo
09:30 - 18:10
BFS
-
DUB
8h 40m
1 stop
Multiple Airlines Logo
06:45 - 16:30
DUB
-
BFS
9h 45m
1 stop
£88Multiple Airlines
Sab, 4 Apr - Sab, 11 Apr
Multiple Airlines Logo
07:35 - 23:45
BFS
-
DUB
16h 10m
1 stop
Multiple Airlines Logo
08:30 - 16:15
DUB
-
BFS
7h 45m
1 stop
£98Multiple Airlines
Sel, 21 Apr - Sel, 28 Apr
Multiple Airlines Logo
07:00 - 13:45
BFS
-
DUB
6h 45m
1 stop
Multiple Airlines Logo
21:15 - 10:20
DUB
-
BFS
13h 05m
1 stop
£99Multiple Airlines
Sen, 16 Mar - Sel, 17 Mar

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 19 Februari 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

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Rab 8/4

19:45-23:25

1 stop3h 40m

Dublin

Min 12/4

23:10-08:15

1 stop9h 05m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Kam 2/4

12:45-23:25

1 stop10h 40m

Dublin

Kam 9/4

06:15-19:15

1 stop13h 00m

£78

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sab 21/3

05:45-17:55

1 stop12h 10m

Dublin

Sen 23/3

13:30-21:55

1 stop8h 25m

£79

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sab 28/3

23:10-09:20

1 stop10h 10m

Dublin

Sen 30/3

14:10-21:55

1 stop7h 45m

£79

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Kam 16/4

12:45-18:10

1 stop5h 25m

Dublin

Kam 23/4

10:20-15:20

1 stop5h 00m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sab 21/3

22:25-09:25

1 stop11h 00m

Dublin

Sen 23/3

15:30-18:55

1 stop3h 25m

£84

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sel 24/3

05:45-09:50

1 stop4h 05m

Dublin

Kam 26/3

21:30-07:25

1 stop9h 55m

£87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sab 4/4

09:30-18:10

1 stop8h 40m

Dublin

Sab 11/4

06:45-16:30

1 stop9h 45m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sel 21/4

07:35-23:45

1 stop16h 10m

Dublin

Sel 28/4

08:30-16:15

1 stop7h 45m

£98

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sen 16/3

07:00-13:45

1 stop6h 45m

Dublin

Sel 17/3

21:15-10:20

1 stop13h 05m

£99

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
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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

6h 45m

Direct flights

None
The fastest flight from Belfast Intl Airport to Dublin takes 6h 45m
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

  • 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 6h 45m.

  • 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.

  • How do I get Price Alerts for flights from Belfast Intl Airport to Dublin?

    Confirm your travel details to search for the latest offers for flights from Belfast Intl Airport to Dublin. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Belfast Intl Airport 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 show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near Dublin?

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

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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