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Cheap flights from Dublin to Belfast from £42

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 5/4. 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
22:00 - 11:35
DUB
-
BFS
13h 35m
1 stop
Multiple Airlines Logo
16:40 - 21:20
BFS
-
DUB
4h 40m
1 stop
£67Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
Multiple Airlines Logo
16:15 - 23:20
DUB
-
BFS
7h 05m
1 stop
Multiple Airlines Logo
20:15 - 00:05
BFS
-
DUB
3h 50m
1 stop
£68Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
06:30 - 21:00
DUB
-
BFS
14h 30m
1 stop
Multiple Airlines Logo
09:15 - 19:20
BFS
-
DUB
10h 05m
1 stop
£69Multiple Airlines
Thu, 23 Apr - Thu, 30 Apr
Multiple Airlines Logo
06:30 - 12:20
DUB
-
BFS
5h 50m
1 stop
Multiple Airlines Logo
14:50 - 19:20
BFS
-
DUB
4h 30m
1 stop
£75Multiple Airlines
Thu, 23 Apr - Thu, 30 Apr
Multiple Airlines Logo
19:55 - 08:05
DUB
-
BFS
12h 10m
1 stop
Multiple Airlines Logo
06:30 - 11:35
BFS
-
DUB
5h 05m
1 stop
£76Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
12:30 - 18:55
DUB
-
BFS
6h 25m
1 stop
Multiple Airlines Logo
16:35 - 21:35
BFS
-
DUB
5h 00m
1 stop
£78Multiple Airlines
Mon, 23 Mar - Thu, 26 Mar
Multiple Airlines Logo
20:20 - 06:45
DUB
-
BFS
10h 25m
1 stop
Multiple Airlines Logo
23:30 - 10:25
BFS
-
DUB
10h 55m
1 stop
£79Multiple Airlines
Mon, 27 Apr - Tue, 28 Apr
Multiple Airlines Logo
06:05 - 18:55
DUB
-
BFS
12h 50m
1 stop
Multiple Airlines Logo
19:20 - 23:00
BFS
-
DUB
3h 40m
1 stop
£80Multiple Airlines
Fri, 24 Apr - Fri, 1 May
Multiple Airlines Logo
06:55 - 15:20
DUB
-
BFS
8h 25m
1 stop
Multiple Airlines Logo
16:40 - 21:20
BFS
-
DUB
4h 40m
1 stop
£80Multiple Airlines
Mon, 13 Apr - Tue, 14 Apr
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
Multiple Airlines Logo
05:55 - 19:00
BFS
-
DUB
13h 05m
1 stop
£81Multiple Airlines
Tue, 7 Apr - Tue, 14 Apr

British Airways flights from Dublin to Belfast

Our best British Airways deals on Dublin to Belfast flight tickets
British Airways
27 Apr
DUB20:30Dublin
11h 05m
1 stop
BHD07:35Belfast City
6 May
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
£240
British Airways
27 Apr
DUB20:30Dublin
11h 05m
1 stop
BHD07:35Belfast City
6 May
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
£240
British Airways
31 Mar
DUB12:50Dublin
5h 55m
1 stop
BHD18:45Belfast City
7 Apr
BHD19:30Belfast City
12h 10m
1 stop
DUB07:40Dublin
£252

Aer Lingus flights from Dublin to Belfast

Our best Aer Lingus deals on Dublin to Belfast flight tickets
Aer Lingus
27 Apr
DUB06:40Dublin
8h 20m
1 stop
BHD15:00Belfast City
6 May
BHD15:40Belfast City
6h 05m
1 stop
DUB21:45Dublin
£157
Aer Lingus
10 Apr
DUB17:50Dublin
3h 00m
1 stop
BHD20:50Belfast City
12 Apr
BHD06:50Belfast City
6h 55m
1 stop
DUB13:45Dublin
£193
Aer Lingus
27 Apr
DUB06:40Dublin
8h 20m
1 stop
BHD15:00Belfast City
6 May
BHD07:00Belfast City
14h 45m
1 stop
DUB21:45Dublin
£233

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 10 March 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

Tue 21/4

22:00-11:35

1 stop13h 35m

Belfast Intl

Tue 28/4

16:40-21:20

1 stop4h 40m

£67

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 22/4

16:15-23:20

1 stop7h 05m

Belfast Intl

Wed 29/4

20:15-00:05

1 stop3h 50m

£68

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 23/4

06:30-21:00

1 stop14h 30m

Belfast Intl

Thu 30/4

09:15-19:20

1 stop10h 05m

£69
Fastest return journey

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 23/4

06:30-12:20

1 stop5h 50m

Belfast Intl

Thu 30/4

14:50-19:20

1 stop4h 30m

£75

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 20/4

19:55-08:05

1 stop12h 10m

Belfast Intl

Mon 27/4

06:30-11:35

1 stop5h 05m

£76

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 23/3

12:30-18:55

1 stop6h 25m

Belfast Intl

Thu 26/3

16:35-21:35

1 stop5h 00m

£78

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 27/4

20:20-06:45

1 stop10h 25m

Belfast Intl

Tue 28/4

23:30-10:25

1 stop10h 55m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 24/4

06:05-18:55

1 stop12h 50m

Belfast Intl

Fri 1/5

19:20-23:00

1 stop3h 40m

£80

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 13/4

06:55-15:20

1 stop8h 25m

Belfast Intl

Tue 14/4

16:40-21:20

1 stop4h 40m

£80

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 7/4

20:30-08:05

1 stop11h 35m

Belfast Intl

Tue 14/4

05:55-19:00

1 stop13h 05m

£81

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Dublin to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Dublin to Belfast?

Ryanair is the most popular carrier operating from Dublin to Belfast

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 00m

Direct flights

None
The fastest flight from Dublin to Belfast takes 3h 00m
There are no direct flights from Dublin to Belfast. There are no popular flight routes from Dublin to Belfast.
Search flight deals

  • 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 00m 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.

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.

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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