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Cheap flights from Dublin to Northern Ireland from £51

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BFS
21 Jan — 28 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Northern Ireland
Explore the most affordable flight options available from Dublin to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 December 2025.

Tue 30/1209:00DUB - BFS
1 stop8h 00mMultiple Airlines
Tue 6/105:45BFS - DUB
1 stop4h 05mMultiple Airlines
Deal found 20/12£109
Mon 29/1206:15DUB - BFS
1 stop6h 55mMultiple Airlines
Thu 1/117:15BFS - DUB
1 stop5h 10mMultiple Airlines
Deal found 20/12£126
Mon 29/1206:15DUB - BHD
1 stop3h 35mMultiple Airlines
Thu 1/116:55BHD - DUB
1 stop4h 50mMultiple Airlines
Deal found 20/12£132
Tue 30/1206:40DUB - BHD
1 stop6h 10mMultiple Airlines
Tue 6/115:25BHD - DUB
1 stop5h 10mMultiple Airlines
Deal found 20/12£146

Find flight deals from Dublin to Northern Ireland

Keep the following information in mind while searching for Dublin to Northern Ireland flight deals. Data was last updated 22 December 2025.

Round-trip from

£78

One-way from

£51
4/2-11/2
  • 4/2-11/2
  • 2 total stops
  • 9h 05m total
  • Dublin to Northern Ireland
Search Deals
18/6
  • 18/6
  • 1 total stop
  • 7h 50m total
  • Dublin to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Northern Ireland 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 22 December 2025.
Use the filters below to find and compare flights from Dublin to Northern Ireland that are best for you.

Fly from

Dublin

Fly to

Northern Ireland

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 4/2

06:45-10:20

1 stop3h 35m

Belfast Intl

Wed 11/2

07:55-13:25

1 stop5h 30m

£78

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 18/1

21:45-07:25

1 stop9h 40m

Belfast Intl

Sun 25/1

05:45-11:35

1 stop5h 50m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 5/2

22:15-10:30

1 stop12h 15m

Belfast Intl

Thu 12/2

14:00-19:00

1 stop5h 00m

£82

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 12/2

06:10-16:15

1 stop10h 05m

Belfast Intl

Mon 16/2

10:35-23:35

1 stop13h 00m

£86

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 2/2

09:15-14:55

1 stop5h 40m

Belfast Intl

Wed 11/2

07:55-13:25

1 stop5h 30m

£100

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 3/2

18:25-10:20

1 stop15h 55m

Belfast Intl

Tue 10/2

06:30-20:50

1 stop14h 20m

£105

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sun 18/1

06:20-14:25

1 stop8h 05m

Belfast City

Sun 25/1

15:05-18:35

1 stop3h 30m

£107

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 12/2

06:50-14:50

1 stop8h 00m

Belfast City

Mon 16/2

13:15-23:35

1 stop10h 20m

£108

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 2/2

20:45-09:35

1 stop12h 50m

Belfast City

Wed 11/2

16:50-20:05

1 stop3h 15m

£112

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Tue 3/2

07:50-13:35

1 stop5h 45m

Belfast City

Tue 10/2

17:20-20:50

1 stop3h 30m

£125

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Showing 1-10 of 49 results
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Best time to book a flight from Dublin to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Dublin 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 Dublin to Northern Ireland

What is the cheapest time of day to fly from DUB to NIR?

Find hourly flight availability from Dublin to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 December 2025.

One of the essential ways to save on airfare from Dublin to Northern Ireland is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 45% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Northern Ireland. 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 from for flights from Dublin to Northern Ireland?

    Dublin (DUB), located 5.7 mi from the city center, is the airport you fly out of when you book flights from Dublin to Northern Ireland.

  • What are the most popular routes from Dublin to Northern Ireland?

    When deciding which route to take from Dublin to Northern Ireland consider Dublin - Belfast Intl, Dublin - Belfast City or Dublin - Londonderry Eglinton as they are the most popular.

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

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

  • How can I find direct flights from Dublin to Northern Ireland?

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

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

    Yes. Cheapflights offers flight deals from Dublin to Northern Ireland 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 Dublin to Northern Ireland

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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 Dublin to Northern Ireland?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Northern Ireland from Dublin today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Northern Ireland from Dublin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Dublin to Northern Ireland with no change fees.

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

Yes, Cheapflights offers price alerts on Dublin to Northern Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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