Find flights
When to book
FAQs

Cheap flights from Dublin to Belfast from £39

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BHD
27 Jan — 3 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dublin to Belfast

Enter your travel dates to find the best prices.

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 28 December 2025.

Wed 31/1219:55DUB - BFS
1 stop12h 30mMultiple Airlines
Fri 2/121:20BFS - DUB
1 stop11h 35mMultiple Airlines
Deal found 26/12£116
Wed 31/1206:40DUB - BHD
1 stop11h 45mMultiple Airlines
Fri 2/106:50BHD - DUB
1 stop14h 20mMultiple Airlines
Deal found 26/12£146

Find 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 28 December 2025.

Round-trip from

£79

One-way from

£39
20/2-22/2
  • 20/2-22/2
  • 2 total stops
  • 14h 45m total
  • Dublin to Belfast
Search Deals
Ryanair
  • Ryanair
  • 9/2
  • 1 total stop
  • 10h 00m total
  • Dublin to Belfast
Search Deals

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 28 December 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

Fri 20/2

15:00-20:25

1 stop5h 25m

Belfast Intl

Sun 22/2

23:05-08:25

1 stop9h 20m

£79

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 9/2

13:30-18:25

1 stop4h 55m

Belfast Intl

Mon 16/2

18:50-23:05

1 stop4h 15m

£85

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 11/2

06:30-10:45

1 stop4h 15m

Belfast Intl

Wed 18/2

15:45-23:05

1 stop7h 20m

£87

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 23/1

15:15-21:05

1 stop5h 50m

Belfast Intl

Fri 30/1

18:00-23:05

1 stop5h 05m

£87

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Tue 13/1

07:20-19:55

1 stop12h 35m

Belfast City

Mon 19/1

10:05-15:05

1 stop5h 00m

£88

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 13/1

19:20-08:20

1 stop13h 00m

Belfast Intl

Mon 19/1

08:50-15:05

1 stop6h 15m

£90

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 19/2

07:30-22:30

1 stop15h 00m

Belfast Intl

Mon 23/2

07:20-21:35

1 stop14h 15m

£93

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Thu 19/2

06:15-16:05

1 stop9h 50m

Belfast City

Mon 23/2

08:00-14:55

1 stop6h 55m

£96

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 10/2

09:00-17:00

1 stop8h 00m

Belfast Intl

Tue 17/2

07:00-11:55

1 stop4h 55m

£96

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Fri 23/1

06:30-16:20

1 stop9h 50m

Belfast City

Fri 30/1

17:20-00:05

1 stop6h 45m

£107

Flights are sorted by cheapest return flights first.

Deals found on 26/12

Showing 1-10 of 32 results
1
2
3
4

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 28 December 2025.

It’s typically best to fly out from Dublin to Belfast in the evening. Doing so could potentially save you 45% on the flight price compared to flying in the morning, which is usually more expensive.

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.

  • 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.

See more FAQs

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?

When you search for this flight from Dublin to Belfast, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Dublin to Belfast by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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.

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

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!

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.