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Cheap flights from Dublin to Belfast 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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
9 Jul — 16 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 4 July 2025.

Round-trip from

£82

One-way from

£51
12/8-20/8
  • 12/8-20/8
  • 2 total stops
  • 22h 05m total
  • Dublin to Belfast
Search Deals
19/8
  • 19/8
  • 1 total stop
  • 24h 15m 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 4 July 2025.

Tue 12/820:50DUB - BFS
1 stop12h 20mMultiple Airlines
Wed 20/806:25BFS - DUB
1 stop9h 45mMultiple Airlines
Deal found 3/7£82
Wed 30/706:50DUB - BHD
1 stop4h 50mMultiple Airlines
Wed 6/812:10BHD - DUB
1 stop4h 45mMultiple Airlines
Deal found 2/7£136
Sat 12/706:30DUB - BHD
1 stop11h 45mAer Lingus
Mon 14/715:15BHD - DUB
1 stop5h 45mAer Lingus
Deal found 2/7£150
Mon 18/808:45DUB - BHD
1 stop5h 55mBritish Airways
Wed 27/818:30BHD - DUB
1 stop13h 15mBritish Airways
Deal found 3/7£196
Mon 18/811:10DUB - BHD
1 stop10h 05mKLM
Wed 27/817:25BHD - DUB
1 stop5h 00mKLM
Deal found 2/7£238
Mon 4/818:30DUB - BHD
3 stops42h 25mLoganair
Sun 10/816:20BHD - DUB
1 stop19h 10mLoganair
Deal found 2/7£652

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 4 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

Tue 12/8

20:50-09:10

1 stop12h 20m

Belfast Intl

Wed 20/8

06:25-16:10

1 stop9h 45m

£82

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Wed 30/7

06:50-11:40

1 stop4h 50m

Belfast City

Wed 6/8

12:10-16:55

1 stop4h 45m

£136

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 17/7

06:30-16:25

1 stop9h 55m

Belfast City

Sun 20/7

11:00-17:20

1 stop6h 20m

£173

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 18/8

08:45-14:40

1 stop5h 55m

Belfast City

Wed 27/8

18:30-07:45

1 stop13h 15m

£196

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 18/8

11:10-21:15

1 stop10h 05m

Belfast City

Wed 27/8

17:25-22:25

1 stop5h 00m

£238

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Mon 4/8

18:30-12:55

3 stops42h 25m

Belfast City

Sun 10/8

16:20-11:30

1 stop19h 10m

£652

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 19/8

14:45-15:00

1 stop24h 15m

£51

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Tue 19/8

05:45-10:10

1 stop4h 25m

£59

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Wed 9/7

06:30-16:25

1 stop9h 55m

£67

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 12/7

12:45-20:50

1 stop8h 05m

£195

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 11 results
1
2

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 4 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 4 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
1,367 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.8

Comfort

7.7

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
1,367 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.8

Comfort

7.7

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
1,144 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.8

Comfort

7.7

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
7,093 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Crew

8.4

Food

7.2

Overall

7.8

Comfort

7.7

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?

    £67 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 £195 and £345, 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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