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Cheap flights from Dublin to Belfast from £48

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
23 Jul — 30 Jul1
1 adult

Cheap flight deals from Dublin to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Belfast (BF1). 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 18 July 2025.

Round-trip from

£93

One-way from

£48
5/9-11/9
  • 5/9-11/9
  • 2 total stops
  • 10h 50m total
  • Dublin to Belfast
Search Deals
26/8
  • 26/8
  • 1 total stop
  • 14h 05m total
  • Dublin to Belfast
Search Deals

Find flight deals from Dublin to Belfast

Cheapest flights from Dublin to Belfast
Explore the most affordable flight options available from Dublin to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 July 2025.

Fri 5/918:45DUB - BFS
1 stop4h 05mMultiple Airlines
Thu 11/907:00BFS - DUB
1 stop6h 45mMultiple Airlines
Deal found 16/7£93
Fri 5/907:40DUB - BHD
1 stop8h 45mMultiple Airlines
Thu 11/915:20BHD - DUB
1 stop6h 45mMultiple Airlines
Deal found 16/7£120
Fri 5/906:30DUB - BHD
1 stop13h 25mAer Lingus
Thu 11/906:50BHD - DUB
1 stop11h 05mAer Lingus
Deal found 16/7£151
Fri 5/913:20DUB - BHD
1 stop7h 55mKLM
Thu 11/917:25BHD - DUB
1 stop5h 00mKLM
Deal found 18/7£184
Fri 5/908:35DUB - BHD
1 stop6h 55mBritish Airways
Thu 11/912:40BHD - DUB
1 stop5h 20mBritish Airways
Deal found 18/7£254

Cheapflights Fare Finder

Customise your flight search to find flights from Dublin 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 18 July 2025.
Use the filters below to find and compare flights from Dublin to Belfast that are best for you.

Fly from

Dublin

Fly to

Belfast

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 5/9

18:45-22:50

1 stop4h 05m

Belfast Intl

Thu 11/9

07:00-13:45

1 stop6h 45m

£93

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Fri 5/9

07:40-16:25

1 stop8h 45m

Belfast City

Thu 11/9

15:20-22:05

1 stop6h 45m

£120

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Fri 5/9

06:30-19:55

1 stop13h 25m

Belfast City

Thu 11/9

06:50-17:55

1 stop11h 05m

£151

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Fri 5/9

13:20-21:15

1 stop7h 55m

Belfast City

Thu 11/9

17:25-22:25

1 stop5h 00m

£184

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Fri 5/9

08:35-15:30

1 stop6h 55m

Belfast City

Thu 11/9

12:40-18:00

1 stop5h 20m

£254

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 26/8

07:50-21:55

1 stop14h 05m

£48

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Tue 26/8

05:45-10:10

1 stop4h 25m

£59

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 8/1

14:50-21:00

1 stop6h 10m

£79

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 8/1

06:40-13:50

2 stops7h 10m

£274

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sun 21/9

12:20-12:55

3 stops24h 35m

£388

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Best time to book a flight from Dublin to Belfast

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

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

Find hourly flight availability from Dublin to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 July 2025.

When flying from Dublin to Belfast, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated 18 July 2025.
Get a feel of what it's like to fly with KLM, Aer Lingus, andBritish Airways from Dublin to Belfast by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,374 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

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
1,374 reviews
KLM
7.8
Good
1,374 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

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
1,170 reviews
KLM
7.8
Good
1,374 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

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
7,151 reviews
KLM
7.8
Good
1,374 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.1

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

Find useful and relevant information for your journey from Dublin to Belfast. 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 Belfast?

    If you book a flight to Belfast from Dublin, you will be flying from Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 0 flights from Dublin to Belfast per day from 0 different airlines.

  • What are the cheapest airlines to fly from Dublin to Belfast one-way?

    £79 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and Loganair, with prices starting from £274 and £388, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dublin 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.

  • What is the cheapest month to book a flight from Dublin to Belfast?

    Currently, January is the cheapest month in which you can book a flight from Dublin to Belfast (average of £67). Flying from Dublin to Belfast 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

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

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

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

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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