In terms of precipitation, rainfall in Belfast Intl Airport ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast Intl Airport when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from Ireland to Belfast Intl Airport?

The most popular route from Ireland to Belfast Intl Airport is Dublin - Belfast Intl. You may also consider Cork - Belfast Intl or Shannon - Belfast Intl.

What is the cheapest time of day to fly from IE to BFS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to Belfast Intl Airport as you normally would.

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

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

How can I find direct flights from Ireland to Belfast Intl?

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

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

Yes. Cheapflights offers flight deals from Ireland 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.

£37+ Cheap Flights from Ireland to Belfast Intl Airport

Cheap flight deals from Ireland to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ireland to Belfast Intl
Explore the most affordable flight options available from Ireland to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Thu 15/1015:45 -

1 stop6h 35m

Wed 21/1017:40 -

1 stop3h 30m

Deal found 3/9£71

Wed 30/918:15 -

1 stop5h 05m

Wed 7/1008:30 -

1 stop9h 20m

Deal found 2/9£73

Thu 3/908:30 -

1 stop6h 50m

Wed 9/907:30 -

1 stop4h 20m

Deal found 31/8£75

Mon 28/906:30 -

1 stop5h 50m

Mon 5/1018:50 -

1 stop13h 00m

Deal found 31/8£75

Thu 1/1008:15 -

1 stop14h 05m

Sat 3/1021:40 -

1 stop10h 50m

Deal found 2/9£76

Thu 1/1010:20 -

1 stop5h 00m

Thu 8/1012:45 -

1 stop5h 25m

Deal found 3/9£76

Thu 22/1009:55 -

1 stop5h 25m

Thu 29/1017:20 -

1 stop6h 05m

Deal found 3/9£76

Sat 3/1008:00 -

1 stop3h 55m

Sat 10/1020:15 -

1 stop12h 30m

Deal found 2/9£78

Thu 15/1010:20 -

1 stop5h 00m

Fri 23/1019:20 -

1 stop5h 40m

Deal found 2/9£78

Thu 15/1008:30 -

1 stop13h 50m

Thu 22/1009:15 -

1 stop11h 15m

Deal found 31/8£79

Mon 28/910:25 -

1 stop11h 30m

Mon 5/1008:40 -

1 stop5h 55m

Deal found 31/8£79

Tue 15/922:25 -

1 stop8h 40m

Sat 19/921:40 -

1 stop10h 50m

Deal found 30/8£79

Best flights from Ireland to Belfast Intl
Discover carefully curated flight deals from Ireland to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Thu 15/1015:45 -

1 stop6h 35m

Wed 21/1017:40 -

1 stop3h 30m

Deal found 3/9£71

Wed 30/918:15 -

1 stop5h 05m

Wed 7/1008:30 -

1 stop9h 20m

Deal found 2/9£73

Thu 1/1010:20 -

1 stop5h 00m

Thu 8/1012:45 -

1 stop5h 25m

Deal found 3/9£76

Tue 13/1022:00 -

1 stop13h 35m

Fri 16/1012:15 -

1 stop11h 05m

Deal found 3/9£77

Thu 8/1010:20 -

1 stop12h 00m

Thu 15/1012:45 -

1 stop7h 45m

Deal found 30/8£77

Sat 3/1008:00 -

1 stop3h 55m

Sat 10/1020:15 -

1 stop12h 30m

Deal found 2/9£78

Tue 29/908:30 -

1 stop7h 45m

Tue 6/1007:35 -

1 stop6h 30m

Deal found 1/9£78

Thu 15/1008:30 -

1 stop13h 50m

Thu 22/1009:15 -

1 stop11h 15m

Deal found 31/8£79

Tue 13/1006:30 -

1 stop3h 30m

Tue 20/1007:35 -

1 stop6h 30m

Deal found 1/9£79

Mon 28/910:25 -

1 stop11h 30m

Mon 5/1008:40 -

1 stop5h 55m

Deal found 31/8£79

Mon 12/1021:05 -

1 stop12h 55m

Mon 19/1008:40 -

1 stop12h 00m

Deal found 30/8£79

Thu 1/1008:30 -

1 stop13h 50m

Tue 6/1023:30 -

1 stop10h 05m

Deal found 1/9£80

Fri 2/1015:00 -

1 stop8h 00m

Mon 5/1008:40 -

1 stop5h 55m

Deal found 3/9£82

Thu 1/1008:15 -

1 stop14h 05m

Sat 3/1021:40 -

1 stop10h 50m

Deal found 31/8£82

Sat 7/1122:40 -

1 stop8h 45m

Sun 8/1122:00 -

1 stop12h 00m

Deal found 31/8£82

Thu 1/1023:50 -

1 stop8h 40m

Sun 4/1007:10 -

1 stop3h 20m

Deal found 30/8£82

Fri 16/1012:35 -

1 stop6h 55m

Fri 23/1019:20 -

1 stop5h 40m

Deal found 1/9£82

Wed 14/1016:00 -

1 stop7h 20m

Wed 21/1008:30 -

1 stop7h 05m

Deal found 30/8£84

Sun 18/1019:05 -

1 stop13h 10m

Sun 25/1007:10 -

1 stop9h 50m

Deal found 3/9£84

Sun 18/1023:10 -

1 stop10h 00m

Sun 25/1021:00 -

1 stop3h 45m

Deal found 3/9£92

Fri 2/1008:45 -

1 stop10h 45m

Fri 9/1007:35 -

1 stop12h 20m

Deal found 1/9£93

Sat 17/1006:55 -

2 stops14h 20m

Sat 24/1020:15 -

1 stop12h 10m

Deal found 2/9£99

Fri 2/1015:00 -

1 stop8h 00m

Sun 4/1012:20 -

1 stop5h 00m

Deal found 1/9£101

Sat 17/1006:05 -

1 stop8h 10m

Sat 24/1006:55 -

2 stops13h 25m

Deal found 2/9£110

Fri 16/1015:00 -

1 stop8h 00m

Fri 23/1008:55 -

1 stop4h 50m

Deal found 1/9£117

Find flight deals from Ireland to Belfast Intl

Round-trip from	£73
One-way from	£37

30/9-7/10
2 total stops
14h 25m total
Ireland to Belfast

Search Deals

20/10-31/12
1 total stop
6h 40m total
Ireland to Belfast

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Mon 21/9

15:40-21:30

1 stop5h 50m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£39

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Wed 30/9

18:15-23:20

1 stop5h 05m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£39

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Fri 2/10

06:05-11:50

1 stop5h 45m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£42

ShannonBelfast

SNN Shannon - BFS Belfast Intl

SNNBFS

Shannon

Thu 1/10

08:30-22:20

1 stop13h 50m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£43

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Thu 10/9

13:00-15:05

1 stop26h 05m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£44

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Wed 9/9

21:00-22:20

1 stop25h 20m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£45

Fastest return journey

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Tue 15/9

06:40-11:15

1 stop4h 35m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£56

CorkBelfast

ORK Cork - BFS Belfast Intl

ORKBFS

Cork

Sun 13/9

09:10-12:20

1 stop27h 10m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£60

ShannonBelfast

SNN Shannon - BFS Belfast Intl

SNNBFS

Shannon

Sun 13/9

17:00-08:50

1 stop15h 50m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£62

ShannonBelfast

SNN Shannon - BFS Belfast Intl

SNNBFS

Shannon

Mon 14/9

06:20-08:05

2 stops25h 45m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 36 resultsSorted by cheapest first

Best time to book a flight from Ireland to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Ireland with our price prediction graph.

DUB-BFS

SNN-BFS

ORK-BFS

KIR-BFS

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 Ireland to Belfast Intl Airport

IE0-BFS

DUB-BFS

SNN-BFS

ORK-BFS

KIR-BFS

No data available for this route at this time. Please check back soon.

Related info for your journey

What are the most popular routes from Ireland to Belfast Intl Airport?
The most popular route from Ireland to Belfast Intl Airport is Dublin - Belfast Intl. You may also consider Cork - Belfast Intl or Shannon - Belfast Intl.
Can I find deals for flights from Ireland to Belfast Intl that include hotel bookings?
Yes. In addition to deals on Ireland to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Belfast Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Belfast Intl.
Can I find deals for business class flights from Ireland to Belfast Intl?
Yes. Cheapflights offers flight deals from Ireland 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

Armagh

Newry

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Belfast Intl flight routes

Complete your trip

Direct flights to Northern Ireland

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for Ireland to Belfast Intl

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Manchester to Belfast Intl flights

Birmingham to Belfast Intl flights

Dublin to Belfast Intl flights

Heathrow to Belfast Intl flights

Heathrow to Belfast City flights

London City to Belfast Intl flights

Manchester to Belfast City flights

Gatwick to Belfast City flights

London City to Belfast City flights

Charles de Gaulle to Belfast Intl flights

Stansted to Belfast Intl flights

Luton to Belfast City flights

Edinburgh to Belfast Intl flights

Barcelona-El Prat to Belfast Intl flights

Stansted to Belfast City flights

Dublin to Belfast City flights

Glasgow Intl to Belfast Intl flights

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Frankfurt to Belfast Intl flights

Bristol to Belfast Intl flights

Edinburgh to Belfast City flights

Bruxelles-National to Belfast Intl flights

Amsterdam to Belfast City flights

Birmingham to Belfast City flights

Reus to Belfast Intl flights

Cork to Belfast Intl flights

Charles de Gaulle to Belfast City flights

Southend to Belfast Intl flights

Amsterdam to Belfast Intl flights

Alicante to Belfast Intl flights

Glasgow Intl to Belfast City flights

Frederic Chopin to Belfast Intl flights

Southampton to Belfast Intl flights

Frankfurt to Belfast City flights

Palma de Mallorca to Belfast Intl flights

Madrid to Belfast Intl flights

Porto to Belfast Intl flights

Barcelona-El Prat to Belfast City flights

Frankfurt-Hahn to Belfast Intl flights

Liverpool to Belfast City flights

Newcastle upon Tyne to Belfast Intl flights

Cork to Belfast City flights

Charleroi Brussels to Belfast Intl flights

Leonardo da Vinci/Fiumicino to Belfast Intl flights

Cardiff to Belfast Intl flights

Bruxelles-National to Belfast City flights

Berlin to Belfast Intl flights

Fly with Cheapflights

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Cheapflights helps you search for flights from Ireland 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 Ireland to Belfast Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Belfast Intl.

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

Yes, we can. To see specific flights from Ireland to Belfast Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ireland 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 Ireland today and book when prices fit your budget.

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Cheap flights from Ireland to Belfast Intl Airport from £37

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Belfast Intl

Cheapest flights from Ireland to Belfast IntlExplore the most affordable flight options available from Ireland to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Explore the most affordable flight options available from Ireland to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Best flights from Ireland to Belfast IntlDiscover carefully curated flight deals from Ireland to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Discover carefully curated flight deals from Ireland to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Last-minute flights from Ireland to Belfast IntlDiscover last-minute flight deals from Ireland to Belfast Intl. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from Ireland to Belfast Intl. Data last updated 3 September 2026 and is based on user searches.

One-way flights from Ireland to Belfast IntlSearch for one-way flight options from Ireland to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Search for one-way flight options from Ireland to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Find flight deals from Ireland to Belfast Intl

Round-trip from

One-way from

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Use the filters below to find and compare flights from Ireland to Belfast Intl Airport that are best for you.

Best time to book a flight from Ireland to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Ireland with our price prediction graph.

Cheapflights Insights

Related info for your journey

What are the most popular routes from Ireland to Belfast Intl Airport?

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

How can I find direct flights from Ireland to Belfast Intl?

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

Travelling to a place near Belfast Intl Airport?

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.

Alternative routes for Ireland to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Belfast Intl

Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 September 2026.

Complete your trip

Complete your trip to Belfast Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Northern Ireland

Book a non-stop flight to one of these other cities located in Northern Ireland.

Search flights from Ireland to Belfast Intl by cabin class

Find flights from Ireland to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ireland and Belfast Intl flights

Browse other Ireland and Belfast Intl flight options. Last updated on 3 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Ireland to Belfast Intl flights

Consider these flights travelling from Ireland to Belfast Intl.

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

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

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

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

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Book with Flexibility

Travel Smart

Cheapest flights from Ireland to Belfast Intl
Explore the most affordable flight options available from Ireland to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2026.

Best flights from Ireland to Belfast Intl
Discover carefully curated flight deals from Ireland to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2026.

Last-minute flights from Ireland to Belfast Intl
Discover last-minute flight deals from Ireland to Belfast Intl. Data last updated 3 September 2026 and is based on user searches.

One-way flights from Ireland to Belfast Intl
Search for one-way flight options from Ireland to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.