Find flights
When to book
FAQs

Cheap flights from Dublin to Belfast Intl Airport 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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BFS
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Belfast Intl
Explore the most affordable flight options available from Dublin to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2025.

Tue 30/1209:00DUB - BFS
1 stop8h 00mMultiple Airlines
Tue 6/105:45BFS - DUB
1 stop4h 05mMultiple Airlines
Deal found 20/12£109
Mon 29/1206:15DUB - BFS
1 stop6h 55mMultiple Airlines
Thu 1/117:15BFS - DUB
1 stop5h 10mMultiple Airlines
Deal found 20/12£125
Tue 23/1218:25DUB - BFS
1 stop13h 15mMultiple Airlines
Sat 27/1220:00BFS - DUB
1 stop4h 50mMultiple Airlines
Deal found 22/12£191
Mon 22/1222:35DUB - BFS
1 stop9h 00mMultiple Airlines
Fri 26/1213:10BFS - DUB
1 stop10h 49mMultiple Airlines
Deal found 22/12£208

Find flight deals from Dublin to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Belfast Intl (BFS). 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 23 December 2025.

Round-trip from

£78

One-way from

£51
4/2-11/2
  • 4/2-11/2
  • 2 total stops
  • 9h 05m total
  • Dublin to Belfast
Search Deals
18/6
  • 18/6
  • 1 total stop
  • 7h 50m total
  • Dublin to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Belfast Intl 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 23 December 2025.
Use the filters below to find and compare flights from Dublin to Belfast Intl Airport that are best for you.

Fly from

Dublin

Fly to

Belfast Intl

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 4/2

06:45-10:20

1 stop3h 35m

Belfast Intl

Wed 11/2

07:55-13:25

1 stop5h 30m

£78

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sun 18/1

21:45-07:25

1 stop9h 40m

Belfast Intl

Sun 25/1

05:45-11:35

1 stop5h 50m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 5/2

22:15-10:30

1 stop12h 15m

Belfast Intl

Thu 12/2

14:00-19:00

1 stop5h 00m

£82

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 12/2

06:10-16:15

1 stop10h 05m

Belfast Intl

Mon 16/2

12:40-23:35

1 stop10h 55m

£83

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 2/2

09:15-14:55

1 stop5h 40m

Belfast Intl

Wed 11/2

07:55-13:25

1 stop5h 30m

£100

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 3/2

18:25-10:20

1 stop15h 55m

Belfast Intl

Tue 10/2

06:30-20:50

1 stop14h 20m

£105

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 9/6

06:05-10:00

1 stop3h 55m

Belfast Intl

Tue 16/6

07:35-14:05

1 stop6h 30m

£130

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 9/6

06:05-10:00

1 stop3h 55m

Belfast Intl

Mon 15/6

07:00-10:00

1 stop3h 00m

£144

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 9/6

06:05-10:00

1 stop3h 55m

Belfast Intl

Fri 12/6

20:50-23:59

1 stop3h 09m

£152

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 18/6

07:30-15:20

1 stop7h 50m

£51

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Showing 1-10 of 15 results
1
2

Best time to book a flight from Dublin to Belfast Intl

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

Related info for your journey

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

    Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to Belfast Intl. You should not have trouble finding flights to Belfast Intl from Dublin; the airport handles an average of 0 outbound flights to Belfast Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Dublin airport to Belfast Intl. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dublin to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Belfast Intl?

Cheapflights helps you search for flights from Dublin to Belfast Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Dublin to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Dublin to Belfast Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Dublin to Belfast Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Dublin today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.