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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 Cheapflights user in the last 72 hours by searching for a flight departing on 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
22 gen — 29 gen1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Dublin

Enter your travel dates to find the best prices.

Best flights from Belfast Intl to Dublin
Discover carefully curated flight deals from Belfast Intl to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 dicembre 2025.

gio 29/106:15BFS - DUB
1 stop13h 20mMultiple Airlines
lun 2/207:00DUB - BFS
1 stop11h 25mMultiple Airlines
Deal found 22/12£81
mer 4/207:40BFS - DUB
1 stop8h 25mMultiple Airlines
mer 11/206:30DUB - BFS
1 stop4h 15mMultiple Airlines
Deal found 21/12£86
gio 5/218:50BFS - DUB
1 stop4h 50mMultiple Airlines
gio 12/206:15DUB - BFS
1 stop9h 55mMultiple Airlines
Deal found 22/12£87
sab 7/207:20BFS - DUB
1 stop9h 05mMultiple Airlines
mer 11/206:45DUB - BFS
1 stop3h 35mMultiple Airlines
Deal found 21/12£88
sab 24/106:00BFS - DUB
1 stop8h 25mMultiple Airlines
lun 26/115:00DUB - BFS
1 stop3h 55mMultiple Airlines
Deal found 22/12£99

Find flight deals from Belfast Intl to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 dicembre 2025.

Round-trip from

£81

One-way from

£42
29/1-2/2
  • 29/1-2/2
  • 2 total stops
  • 24h 45m total
  • Belfast to Dublin
Search Deals
17/1
  • 17/1
  • 1 total stop
  • 8h 40m total
  • Belfast to Dublin
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl 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, Cheapflights users made 858,174 searches. Data last updated 23 dicembre 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Dublin that are best for you.

Fly from

Belfast Intl

Fly to

Dublin

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

gio 29/1

06:15-19:35

1 stop13h 20m

Dublin

lun 2/2

07:00-18:25

1 stop11h 25m

£81

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

mer 4/2

07:40-16:05

1 stop8h 25m

Dublin

mer 11/2

06:30-10:45

1 stop4h 15m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

gio 5/2

18:50-23:40

1 stop4h 50m

Dublin

gio 12/2

06:15-16:10

1 stop9h 55m

£87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

sab 7/2

07:20-16:25

1 stop9h 05m

Dublin

mer 11/2

06:45-10:20

1 stop3h 35m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

sab 24/1

06:00-14:25

1 stop8h 25m

Dublin

lun 26/1

15:00-18:55

1 stop3h 55m

£99

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

sab 17/1

23:10-07:50

1 stop8h 40m

£42

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

lun 9/2

07:00-17:05

1 stop10h 05m

£45

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

mer 31/12

21:20-09:15

1 stop11h 55m

£56

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

dom 5/4

09:35-20:05

1 stop10h 30m

£60

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

mer 31/12

09:40-22:30

2 stops12h 50m

£77

Flights are sorted by cheapest return flights first.

Deals found on 22/12

Best time to book a flight from Belfast Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Belfast Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from Belfast Intl?

    Most people fly into Dublin (DUB) if they book a flight to Dublin from Belfast Intl. On average, Dublin has 0 inbound flights from Belfast Intl per day from 0 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

  • Can I find deals for flights from Belfast Intl to Dublin that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Dublin.

  • Can I find deals for business class flights from Belfast Intl to Dublin?

    Yes. Cheapflights offers flight deals from Belfast Intl to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Dublin?

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

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Alternative routes for Belfast Intl to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Belfast City to Dublin flights
Belfast Intl to Shannon flights
Belfast City to Shannon flights
Belfast Intl to Cork flights
Belfast City to Cork flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast Intl to Dublin?

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Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Dublin?

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Can Cheapflights find flights from Belfast Intl to Dublin with no change fees?

Need flexible booking options for your flight to Dublin from Belfast Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Belfast Intl to Dublin become cheaper?

Yes! Start tracking prices for Belfast Intl to Dublin flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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