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Cheap flights from Dublin to Belfast from £39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Belfast departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Dublin to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
£73Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
10:05 - 15:15
DUB
-
BFS
5h 10m
1 stop
Multiple Airlines Logo
19:55 - 23:25
BFS
-
DUB
3h 30m
1 stop
£73Multiple Airlines
Wed, 20 May - Wed, 27 May
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
12:45 - 23:25
BFS
-
DUB
10h 40m
1 stop
£74Multiple Airlines
Thu, 4 Jun - Thu, 11 Jun
Multiple Airlines Logo
10:05 - 15:15
DUB
-
BFS
5h 10m
1 stop
Multiple Airlines Logo
07:30 - 20:45
BFS
-
DUB
13h 15m
1 stop
£75Multiple Airlines
Wed, 20 May - Wed, 27 May
Multiple Airlines Logo
10:20 - 15:20
DUB
-
BFS
5h 00m
1 stop
Multiple Airlines Logo
09:15 - 23:20
BFS
-
DUB
14h 05m
1 stop
£76Multiple Airlines
Thu, 28 May - Thu, 4 Jun
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
£76Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
12:45 - 23:25
BFS
-
DUB
10h 40m
1 stop
£77Multiple Airlines
Thu, 4 Jun - Thu, 11 Jun
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
12:45 - 18:10
BFS
-
DUB
5h 25m
1 stop
£78Multiple Airlines
Thu, 21 May - Thu, 28 May
Multiple Airlines Logo
07:30 - 15:20
DUB
-
BFS
7h 50m
1 stop
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
£79Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
10:20 - 22:20
DUB
-
BFS
12h 00m
1 stop
Multiple Airlines Logo
21:40 - 09:10
BFS
-
DUB
11h 30m
1 stop
£79Multiple Airlines
Thu, 14 May - Sat, 23 May

British Airways flights from Dublin to Belfast

Our best British Airways deals on Dublin to Belfast flight tickets
British Airways
18 May
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
26 May
BHD06:45Belfast City
12h 50m
1 stop
DUB19:35Dublin
£232
British Airways
4 Jun
DUB10:30Dublin
8h 15m
1 stop
BHD18:45Belfast City
12 Jun
BHD20:10Belfast City
11h 30m
1 stop
DUB07:40Dublin
£239
British Airways
8 May
DUB20:10Dublin
12h 40m
1 stop
BHD08:50Belfast City
15 May
BHD20:10Belfast City
11h 30m
1 stop
DUB07:40Dublin
£242

Aer Lingus flights from Dublin to Belfast

Our best Aer Lingus deals on Dublin to Belfast flight tickets
Aer Lingus
8 Jun
DUB06:30Dublin
6h 40m
1 stop
BHD13:10Belfast City
14 Jun
BHD17:55Belfast City
4h 45m
1 stop
DUB22:40Dublin
£193
Aer Lingus
28 May
DUB09:45Dublin
7h 35m
1 stop
BHD17:20Belfast City
4 Jun
BHD07:00Belfast City
11h 35m
1 stop
DUB18:35Dublin
£245
Aer Lingus
8 May
DUB07:50Dublin
7h 10m
1 stop
BHD15:00Belfast City
15 May
BHD07:00Belfast City
7h 40m
1 stop
DUB14:40Dublin
£279

momondo 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, momondo users made 279,928 searches. Data last updated 24 April 2026.
Use the filters below to find and compare flights from Dublin to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 4/6

13:00-22:20

1 stop9h 20m

Belfast Intl

Wed 10/6

15:40-20:45

1 stop5h 05m

£73
Fastest return journey

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 20/5

10:05-15:15

1 stop5h 10m

Belfast Intl

Wed 27/5

19:55-23:25

1 stop3h 30m

£73

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 4/6

13:00-22:20

1 stop9h 20m

Belfast Intl

Thu 11/6

12:45-23:25

1 stop10h 40m

£74

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 20/5

10:05-15:15

1 stop5h 10m

Belfast Intl

Wed 27/5

07:30-20:45

1 stop13h 15m

£75

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 28/5

10:20-15:20

1 stop5h 00m

Belfast Intl

Thu 4/6

09:15-23:20

1 stop14h 05m

£76

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 4/6

13:00-22:20

1 stop9h 20m

Belfast Intl

Wed 10/6

15:40-20:45

1 stop5h 05m

£76

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 4/6

13:00-22:20

1 stop9h 20m

Belfast Intl

Thu 11/6

12:45-23:25

1 stop10h 40m

£77

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 21/5

13:00-22:20

1 stop9h 20m

Belfast Intl

Thu 28/5

12:45-18:10

1 stop5h 25m

£78

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 4/6

07:30-15:20

1 stop7h 50m

Belfast Intl

Wed 10/6

15:40-20:45

1 stop5h 05m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 14/5

10:20-22:20

1 stop12h 00m

Belfast Intl

Sat 23/5

21:40-09:10

1 stop11h 30m

£79

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Cheap Dublin to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to Belfast

Fastest flight time

3h 30m

Direct flights

None
The fastest flight from Dublin to Belfast takes 3h 30m
There are no direct flights from Dublin to Belfast. There are no popular flight routes from Dublin to Belfast.
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Frequently asked questions about flying from Dublin to Belfast

  • How far is Dublin to Belfast by plane?

    A flight from Dublin to Belfast will travel around 87.5 mi. Typically, this will take 3h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Dublin Airport to Belfast?

    Prices for flights from Dublin Airport to Belfast refresh daily.

  • How old do you have to be to fly from Dublin Airport to Belfast?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The necessary travel and health documents for your Belfast trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Dublin to Belfast

  • How do I get Price Alerts for flights from Dublin to Belfast?

    Confirm your travel details to search for the latest offers for flights from Dublin to Belfast. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Dublin to Belfast with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Dublin to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Dublin to Belfast with flexible booking policies on momondo?

Flights from Dublin to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Dublin to Belfast?

momondo helps you find the best flight between Dublin and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Dublin to Belfast right now. Can momondo alert me if prices change?

Price alerts on flights to Belfast from Dublin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Belfast trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport