What is the cheapest month to book a flight from Dublin to Northern Ireland?

Currently, January is the cheapest month in which you can book a flight from Dublin to Northern Ireland (average of £67). Flying from Dublin to Northern Ireland in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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.

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.

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.

£59+ Flights from Dublin to Northern Ireland

Cheap flight deals from Dublin to Northern Ireland

Round-trip from	£71
One-way from	£59

21/8-28/8
2 total stops
14h 00m total
Dublin to Northern Ireland

Search Deals

11/9
1 total stop
21h 15m total
Dublin to Northern Ireland

Search Deals

Find flight deals from Dublin to Northern Ireland

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 9 July 2025.

Thu 21/807:25DUB - BFS

1 stop8h 05mMultiple Airlines

Thu 28/808:10BFS - DUB

1 stop5h 55mMultiple Airlines

Deal found 6/7£71

Sun 23/1106:00DUB - BHD

1 stop3h 20mMultiple Airlines

Mon 24/1110:05BHD - DUB

1 stop11h 10mMultiple Airlines

Deal found 7/7£140

Tue 5/811:25DUB - BHD

1 stop6h 15mAer Lingus

Tue 12/806:55BHD - DUB

1 stop15h 35mAer Lingus

Deal found 8/7£171

Thu 17/721:20DUB - LDY

1 stop16h 25mMultiple Airlines

Mon 21/707:45LDY - DUB

1 stop15h 15mMultiple Airlines

Deal found 7/7£183

Thu 7/808:55DUB - BHD

1 stop12h 20mKLM

Wed 13/806:30BHD - DUB

1 stop13h 45mKLM

Deal found 7/7£184

Mon 1/911:05DUB - BHD

1 stop6h 35mBritish Airways

Wed 10/920:15BHD - DUB

1 stop11h 30mBritish Airways

Deal found 8/7£230

Fri 29/820:15DUB - LDY

1 stop14h 00mBritish Airways

Thu 4/906:30LDY - DUB

1 stop11h 30mBritish Airways

Deal found 7/7£348

Fri 29/813:20DUB - LDY

2 stops20h 55mKLM

Thu 4/906:30LDY - DUB

2 stops13h 45mKLM

Deal found 7/7£360

Mon 4/818:30DUB - BHD

3 stops42h 25mLoganair

Mon 11/812:00BHD - DUB

1 stop23h 30mLoganair

Deal found 7/7£673

Best flights from Dublin to Northern Ireland
Discover carefully curated flight deals from Dublin to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 July 2025.

Thu 21/807:25DUB - BFS

1 stop8h 05mMultiple Airlines

Thu 28/808:10BFS - DUB

1 stop5h 55mMultiple Airlines

Deal found 6/7£71

Tue 5/811:25DUB - BHD

1 stop6h 15mAer Lingus

Tue 12/806:55BHD - DUB

1 stop15h 35mAer Lingus

Deal found 8/7£171

Thu 7/808:55DUB - BHD

1 stop12h 20mKLM

Wed 13/806:30BHD - DUB

1 stop13h 45mKLM

Deal found 7/7£184

Mon 1/911:05DUB - BHD

1 stop6h 35mBritish Airways

Wed 10/920:15BHD - DUB

1 stop11h 30mBritish Airways

Deal found 8/7£230

Sun 23/1106:00DUB - BHD

1 stop3h 20mMultiple Airlines

Mon 24/1110:05BHD - DUB

1 stop11h 10mMultiple Airlines

Deal found 7/7£140

Fri 29/813:45DUB - LDY

1 stop6h 35mMultiple Airlines

Thu 4/910:45LDY - DUB

1 stop4h 25mMultiple Airlines

Deal found 7/7£203

Mon 4/818:30DUB - BHD

3 stops42h 25mLoganair

Mon 11/812:00BHD - DUB

1 stop23h 30mLoganair

Deal found 7/7£673

Fri 29/820:15DUB - LDY

1 stop14h 00mBritish Airways

Thu 4/906:30LDY - DUB

1 stop11h 30mBritish Airways

Deal found 7/7£348

Fri 29/813:20DUB - LDY

2 stops20h 55mKLM

Thu 4/906:30LDY - DUB

2 stops13h 45mKLM

Deal found 7/7£360

Last-minute flights from Dublin to Northern Ireland
Discover last-minute flight deals from Dublin to Northern Ireland. Data last updated 9 July 2025 and is based on user searches.

Thu 17/718:30DUB - BFS

1 stop13h 40mMultiple Airlines

Sat 19/705:45BFS - DUB

1 stop4h 05mMultiple Airlines

Deal found 7/7£139

Thu 17/721:20DUB - LDY

1 stop16h 25mMultiple Airlines

Mon 21/707:45LDY - DUB

1 stop15h 15mMultiple Airlines

Deal found 7/7£183

Thu 17/707:10DUB - BHD

1 stop6h 40mMultiple Airlines

Sat 19/715:10BHD - DUB

1 stop7h 00mMultiple Airlines

Deal found 7/7£240

Mon 4/818:30DUB - BHD

3 stops42h 25mLoganair

Mon 11/812:00BHD - DUB

1 stop23h 30mLoganair

Deal found 7/7£673

Tue 5/811:25DUB - BHD

1 stop6h 15mAer Lingus

Tue 12/806:55BHD - DUB

1 stop15h 35mAer Lingus

Deal found 8/7£171

Wed 6/806:50DUB - BHD

1 stop7h 40mMultiple Airlines

Wed 13/815:25BHD - DUB

1 stop7h 10mMultiple Airlines

Deal found 8/7£144

Thu 7/808:55DUB - BHD

1 stop12h 20mKLM

Wed 13/806:30BHD - DUB

1 stop13h 45mKLM

Deal found 7/7£184

Thu 14/808:35DUB - BHD

1 stop7h 00mBritish Airways

Wed 20/814:35BHD - DUB

1 stop17h 10mBritish Airways

Deal found 8/7£246

Thu 21/807:25DUB - BFS

1 stop8h 05mMultiple Airlines

Thu 28/808:10BFS - DUB

1 stop5h 55mMultiple Airlines

Deal found 6/7£71

Fri 29/820:15DUB - LDY

1 stop14h 00mBritish Airways

Thu 4/906:30LDY - DUB

1 stop11h 30mBritish Airways

Deal found 7/7£348

Fri 29/813:20DUB - LDY

2 stops20h 55mKLM

Thu 4/906:30LDY - DUB

2 stops13h 45mKLM

Deal found 7/7£360

One-way flights from Dublin to Northern Ireland
Search for one-way flight options from Dublin to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 9 July 2025.

Thu 11/919:10DUB - BHD

1 stop21h 15mMultiple Airlines

Deal found 8/7£59

Sat 11/1015:40DUB - BFS

1 stop19h 20mMultiple Airlines

Deal found 8/7£60

Tue 22/710:20DUB - BHD

1 stop3h 25mAer Lingus

Deal found 8/7£76

Wed 16/707:50DUB - LDY

1 stop3h 05mMultiple Airlines

Deal found 8/7£90

Tue 15/712:10DUB - BHD

3 stops24h 45mLoganair

Deal found 8/7£568

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dublin to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 21/8

07:25-15:30

1 stop8h 05m

Belfast Intl

Thu 28/8

08:10-14:05

1 stop5h 55m

£71

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sun 23/11

06:00-09:20

1 stop3h 20m

Belfast City

Mon 24/11

10:05-21:15

1 stop11h 10m

£140

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Tue 5/8

11:25-17:40

1 stop6h 15m

Belfast City

Tue 12/8

06:55-22:30

1 stop15h 35m

£171

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 7/8

08:55-21:15

1 stop12h 20m

Belfast City

Wed 13/8

06:30-20:15

1 stop13h 45m

£184

DublinLondonderry

DUB - LDY

DUBLDY

Dublin

Fri 29/8

13:45-20:20

1 stop6h 35m

Londonderry Eglinton

Thu 4/9

10:45-15:10

1 stop4h 25m

£203

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 1/9

11:05-17:40

1 stop6h 35m

Belfast City

Wed 10/9

20:15-07:45

1 stop11h 30m

£230

DublinLondonderry

DUB - LDY

DUBLDY

Dublin

Fri 29/8

20:15-10:15

1 stop14h 00m

Londonderry Eglinton

Thu 4/9

06:30-18:00

1 stop11h 30m

£348

DublinLondonderry

DUB - LDY

DUBLDY

Dublin

Fri 29/8

13:20-10:15

2 stops20h 55m

Londonderry Eglinton

Thu 4/9

06:30-20:15

2 stops13h 45m

£360

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 4/8

18:30-12:55

3 stops42h 25m

Belfast City

Mon 11/8

12:00-11:30

1 stop23h 30m

£673

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 11/9

19:10-16:25

1 stop21h 15m

£59

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 14 results

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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Northern Ireland as you normally would.

Reviews of airlines servicing Northern Ireland

Get a feel of what it's like to fly with KLM, Aer Lingus, andBritish Airways from Dublin to Northern Ireland by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,370 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,370 reviews

KLM

7.8

Good

1,370 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,151 reviews

KLM

7.8

Good

1,370 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.6

Okay

7,096 reviews

KLM

7.8

Good

1,370 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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.
What is the cheapest month to book a flight from Dublin to Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from Dublin to Northern Ireland (average of £67). Flying from Dublin to Northern Ireland in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dublin to Northern Ireland

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Cork to Manchester flights

Cork to Stansted flights

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Dublin to Newquay flights

Shannon to Belfast City flights

Knock to Luton flights

Shannon to Stansted flights

Knock to Stansted flights

Shannon to Gatwick flights

Shannon to London City flights

Knock to Gatwick flights

Knock to Edinburgh flights

Dublin to Inverness flights

Shannon to Edinburgh flights

Direct flights to United Kingdom

Fly with Cheapflights

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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Cheap flights from Dublin to Northern Ireland from £59

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 9 July 2025.

Round-trip from

One-way from

Find flight deals from Dublin to Northern Ireland

Cheapest flights from Dublin to Northern IrelandExplore 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 9 July 2025.

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 9 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dublin to Northern Ireland that are best for you.

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.

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 9 July 2025.

Reviews of airlines servicing Northern Ireland

Get a feel of what it's like to fly with KLM, Aer Lingus, andBritish Airways from Dublin to Northern Ireland by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

What is the cheapest month to book a flight from Dublin to Northern Ireland?

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

See prices for flight routes from nearby airports that may be better suited for you.

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?

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

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 9 July 2025.