Find flights
When to book
FAQs

Cheap flights from Ireland to Belfast from £39

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
27 Mar — 3 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Belfast
Explore the most affordable flight options available from Ireland to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 February 2026.

Tue 7/406:05
DUB
-
BFS
1 stop3h 55m
Multiple Airlines
Tue 14/407:35
BFS
-
DUB
1 stop8h 50m
Multiple Airlines
Deal found 21/2£73
Sat 4/419:40
DUB
-
BFS
1 stop13h 10m
Multiple Airlines
Mon 13/409:15
BFS
-
DUB
1 stop9h 40m
Multiple Airlines
Deal found 22/2£73
Mon 23/305:45
DUB
-
BFS
1 stop13h 10m
Multiple Airlines
Mon 30/308:40
BFS
-
DUB
1 stop8h 20m
Multiple Airlines
Deal found 23/2£75
Fri 10/406:05
DUB
-
BFS
1 stop12h 50m
Multiple Airlines
Fri 17/417:05
BFS
-
DUB
1 stop4h 05m
Multiple Airlines
Deal found 24/2£76
Wed 8/410:05
DUB
-
BFS
1 stop5h 10m
Multiple Airlines
Wed 15/407:30
BFS
-
DUB
1 stop8h 30m
Multiple Airlines
Deal found 22/2£76
Thu 9/406:15
DUB
-
BFS
1 stop13h 00m
Multiple Airlines
Thu 16/406:40
BFS
-
DUB
1 stop9h 35m
Multiple Airlines
Deal found 23/2£78
Sun 10/506:45
DUB
-
BFS
1 stop13h 55m
Multiple Airlines
Sun 24/522:00
BFS
-
DUB
1 stop10h 45m
Multiple Airlines
Deal found 24/2£79
Wed 8/417:15
ORK
-
BFS
1 stop6h 05m
Multiple Airlines
Wed 15/415:40
BFS
-
ORK
1 stop8h 15m
Multiple Airlines
Deal found 21/2£81
Thu 16/417:35
KIR
-
BFS
1 stop4h 45m
Multiple Airlines
Fri 17/408:55
BFS
-
KIR
1 stop4h 50m
Multiple Airlines
Deal found 24/2£82
Thu 19/309:05
SNN
-
BFS
1 stop13h 45m
Multiple Airlines
Thu 26/319:45
BFS
-
SNN
1 stop12h 25m
Multiple Airlines
Deal found 23/2£82
Fri 17/420:20
ORK
-
BFS
1 stop14h 25m
Multiple Airlines
Sat 18/420:15
BFS
-
ORK
1 stop12h 30m
Multiple Airlines
Deal found 21/2£82
Mon 16/320:00
DUB
-
BFS
1 stop13h 05m
Multiple Airlines
Tue 24/305:45
BFS
-
DUB
1 stop4h 05m
Multiple Airlines
Deal found 23/2£83

Find flight deals from Ireland to Belfast

Keep the following information in mind while searching for Ireland to Belfast flight deals. Data was last updated 25 February 2026.

Round-trip from

£73

One-way from

£39
7/4-14/4
  • 7/4-14/4
  • 2 total stops
  • 12h 45m total
  • Ireland to Belfast
Search Deals
29/4
  • 29/4
  • 1 total stop
  • 13h 15m total
  • Ireland to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast 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 25 February 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Ireland

Fly to

Belfast

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 7/4

06:05-10:00

1 stop3h 55m

Belfast Intl

Tue 14/4

07:35-16:25

1 stop8h 50m

£73

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 4/4

19:40-08:50

1 stop13h 10m

Belfast Intl

Mon 13/4

09:15-18:55

1 stop9h 40m

£73

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 9/4

06:15-19:15

1 stop13h 00m

Belfast Intl

Thu 16/4

06:40-16:15

1 stop9h 35m

£75

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 10/4

06:05-18:55

1 stop12h 50m

Belfast Intl

Fri 17/4

17:05-21:10

1 stop4h 05m

£76

CorkBelfast

ORK - BFS

ORKBFS

Cork

Wed 8/4

17:15-23:20

1 stop6h 05m

Belfast Intl

Wed 15/4

15:40-23:55

1 stop8h 15m

£81

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Thu 19/3

09:05-22:50

1 stop13h 45m

Belfast Intl

Thu 26/3

19:45-08:10

1 stop12h 25m

£82

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 16/3

20:00-09:05

1 stop13h 05m

Belfast Intl

Tue 24/3

05:45-09:50

1 stop4h 05m

£83

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 7/3

22:40-06:45

1 stop8h 05m

Belfast Intl

Fri 13/3

21:05-15:50

1 stop18h 45m

£86

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 16/3

20:45-08:55

1 stop12h 10m

Belfast City

Tue 24/3

12:15-23:05

1 stop10h 50m

£91

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 22/3

21:40-08:20

1 stop10h 40m

Belfast Intl

Sun 29/3

22:10-12:30

1 stop14h 20m

£92

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Ireland to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Ireland 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.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Belfast
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • How long is the flight from Ireland to Belfast?

    Ryanair can get you from Ireland to Belfast in just under 25h 55m. Your travel time can differ by up to . Airlines will cover a distance of 219 mi.

  • What are the most popular routes from Ireland to Belfast?

    The most popular route from Ireland to Belfast is Dublin - Belfast Intl. You may also consider Cork - Belfast Intl or Dublin - Belfast City.

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

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

  • How can I find direct flights from Ireland to Belfast?

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

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

    Yes. Cheapflights offers flight deals from Ireland to Belfast 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Belfast Intl flights
Luton to Belfast Intl flights
Heathrow to Belfast Intl flights
Gatwick to Belfast City flights
Heathrow to Belfast City flights
Manchester to Belfast Intl flights
Charles de Gaulle to Belfast Intl flights
London City to Belfast City flights
London City to Belfast Intl flights
Birmingham to Belfast Intl flights
Manchester to Belfast City flights
Stansted to Belfast City flights
Luton to Belfast City flights
Stansted to Belfast Intl flights
Bristol to Belfast Intl flights
Glasgow Intl to Belfast Intl flights
Birmingham to Belfast City flights
Edinburgh to Belfast Intl flights
Glasgow Intl to Belfast City flights
Liverpool to Belfast Intl flights
Charles de Gaulle to Belfast City flights
Amsterdam to Belfast Intl flights
Bristol to Belfast City flights
Edinburgh to Belfast City flights
East Midlands to Belfast Intl flights
Newcastle upon Tyne to Belfast Intl flights
Leeds to Belfast Intl flights
Liverpool to Belfast City flights
Southampton to Belfast Intl flights
Dublin to Belfast Intl flights
Lyon to Belfast Intl flights
Malpensa to Belfast Intl flights
Linate to Belfast Intl flights
Leeds to Belfast City flights
Southampton to Belfast City flights
Beauvais-Tille to Belfast Intl flights
Cardiff to Belfast Intl flights
Cardiff to Belfast City flights
East Midlands to Belfast City flights
Bergamo to Belfast Intl flights
Newcastle upon Tyne to Belfast City flights
Cork to Belfast Intl flights
Nantes to Belfast Intl flights
Krakow to Belfast Intl flights
Dublin to Belfast City flights
Barcelona-El Prat to Belfast Intl flights
Duesseldorf Intl to Belfast Intl flights
Bruxelles-National to Belfast Intl flights
Malpensa to Belfast City flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Belfast?

Cheapflights helps you search for flights from Ireland to Belfast via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Ireland to Belfast by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Belfast flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Ireland to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.