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Cheap flights from Dublin to Belfast from £36

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 25/8. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Dublin to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:55 - 08:05
DUB
-
BFS
12h 10m
1 stop
Multiple Airlines Logo
07:35 - 19:55
BFS
-
DUB
12h 20m
1 stop
£69Multiple Airlines
Mon, 10 Aug - Tue, 18 Aug
Multiple Airlines Logo
16:25 - 23:05
DUB
-
BFS
6h 40m
1 stop
Multiple Airlines Logo
07:35 - 19:55
BFS
-
DUB
12h 20m
1 stop
£70Multiple Airlines
Tue, 18 Aug - Tue, 25 Aug
Multiple Airlines Logo
20:55 - 08:30
DUB
-
BFS
11h 35m
1 stop
Multiple Airlines Logo
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
£71Multiple Airlines
Thu, 3 Sep - Thu, 10 Sep
Multiple Airlines Logo
06:05 - 10:00
DUB
-
BFS
3h 55m
1 stop
Multiple Airlines Logo
07:30 - 20:45
BFS
-
DUB
13h 15m
1 stop
£72Multiple Airlines
Tue, 11 Aug - Wed, 12 Aug
Multiple Airlines Logo
10:05 - 15:15
DUB
-
BFS
5h 10m
1 stop
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
£73Multiple Airlines
Wed, 19 Aug - Wed, 26 Aug
Multiple Airlines Logo
21:10 - 10:00
DUB
-
BFS
12h 50m
1 stop
Multiple Airlines Logo
20:15 - 07:50
BFS
-
DUB
11h 35m
1 stop
£74Multiple Airlines
Mon, 14 Sep - Tue, 22 Sep
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
Multiple Airlines Logo
07:35 - 19:55
BFS
-
DUB
12h 20m
1 stop
£75Multiple Airlines
Sun, 16 Aug - Tue, 25 Aug
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
07:30 - 16:00
BFS
-
DUB
8h 30m
1 stop
£76Multiple Airlines
Thu, 27 Aug - Wed, 2 Sep
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
Multiple Airlines Logo
08:40 - 20:10
BFS
-
DUB
11h 30m
1 stop
£76Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep
Multiple Airlines Logo
06:10 - 19:15
DUB
-
BFS
13h 05m
1 stop
Multiple Airlines Logo
12:45 - 23:25
BFS
-
DUB
10h 40m
1 stop
£77Multiple Airlines
Thu, 17 Sep - Thu, 24 Sep

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Aer Lingus flights from Dublin to Belfast

Our best Aer Lingus deals on Dublin to Belfast flight tickets
Aer Lingus
17 Aug
DUB07:50Dublin
13h 00m
1 stop
BHD20:50Belfast City
25 Aug
BHD15:40Belfast City
5h 15m
1 stop
DUB20:55Dublin
£151
Aer Lingus
10 Aug
DUB07:10Dublin
13h 40m
1 stop
BHD20:50Belfast City
18 Aug
BHD12:25Belfast City
9h 20m
1 stop
DUB21:45Dublin
£165

British Airways flights from Dublin to Belfast

Our best British Airways deals on Dublin to Belfast flight tickets
British Airways
13 Oct
DUB20:25Dublin
12h 35m
1 stop
BHD09:00Belfast City
14 Oct
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
£176
British Airways
13 Oct
DUB20:25Dublin
12h 35m
1 stop
BHD09:00Belfast City
14 Oct
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
£177
British Airways
13 Oct
DUB20:25Dublin
12h 35m
1 stop
BHD09:00Belfast City
14 Oct
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
£178

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 July 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

Mon 10/8

19:55-08:05

1 stop12h 10m

Belfast Intl

Tue 18/8

07:35-19:55

1 stop12h 20m

£69

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 18/8

16:25-23:05

1 stop6h 40m

Belfast Intl

Tue 25/8

07:35-19:55

1 stop12h 20m

£70

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 3/9

20:55-08:30

1 stop11h 35m

Belfast Intl

Thu 10/9

12:45-23:55

1 stop11h 10m

£71

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 11/8

06:05-10:00

1 stop3h 55m

Belfast Intl

Wed 12/8

07:30-20:45

1 stop13h 15m

£72
Fastest return journey

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 19/8

10:05-15:15

1 stop5h 10m

Belfast Intl

Wed 26/8

07:30-12:30

1 stop5h 00m

£73

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 14/9

21:10-10:00

1 stop12h 50m

Belfast Intl

Tue 22/9

20:15-07:50

1 stop11h 35m

£74

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 16/8

23:10-08:15

1 stop9h 05m

Belfast Intl

Tue 25/8

07:35-19:55

1 stop12h 20m

£75

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 27/8

13:00-22:20

1 stop9h 20m

Belfast Intl

Wed 2/9

07:30-16:00

1 stop8h 30m

£76

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 14/9

20:35-10:00

1 stop13h 25m

Belfast Intl

Mon 21/9

08:40-20:10

1 stop11h 30m

£76

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 17/9

06:10-19:15

1 stop13h 05m

Belfast Intl

Thu 24/9

12:45-23:25

1 stop10h 40m

£77

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

5h 30m

Direct flights

None
The fastest flight from Dublin to Belfast takes 5h 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 5h 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

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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