In terms of precipitation, rainfall in Ireland ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Ireland when rainfall is around 49.0 mm.

If weather is an important factor for your trip to Ireland, 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 Belfast Intl Airport to Ireland?

While some choose either Belfast Intl - Cork or Belfast Intl - Shannon, Belfast Intl - Dublin is the most popular route from Belfast Intl Airport to Ireland.

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

When flying from Belfast Intl Airport to Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

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

£38+ Cheap Flights from Belfast Intl Airport to Ireland

Cheap flight deals from Belfast Intl to Ireland

Enter your travel dates to find the best prices.

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Cheapest flights from Belfast Intl to Ireland
Explore the most affordable flight options available from Belfast Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Wed 21/1008:30 -

1 stop7h 05m

Wed 28/1011:20 -

1 stop9h 35m

Deal found 23/9£78

Wed 4/1108:50 -

1 stop5h 35m

Wed 11/1114:50 -

1 stop5h 40m

Deal found 20/9£94

Fri 6/1121:05 -

1 stop12h 55m

Fri 13/1117:20 -

1 stop15h 45m

Deal found 22/9£101

Sat 17/1020:15 -

1 stop21h 05m

Tue 20/1010:55 -

1 stop5h 20m

Deal found 23/9£104

Find flight deals from Belfast Intl to Ireland

Round-trip from	£78
One-way from	£38

21/10-28/10
2 total stops
16h 40m total
Belfast to Ireland

Search Deals

Ryanair
1/10-31/12
1 total stop
4h 30m total
Belfast to Ireland

Search Deals

Cheapflights Fare Finder

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

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Route

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BelfastMilltown (Kerry)

BFS Belfast Intl - KIR Milltown (Kerry)

BFSKIR

Belfast Intl

Thu 1/10

12:45-17:15

1 stop4h 30m

Milltown (Kerry)

Wed 31/12

00:00-00:00

Nonstop0h 00m

£38

BelfastMilltown (Kerry)

BFS Belfast Intl - KIR Milltown (Kerry)

BFSKIR

Belfast Intl

Thu 1/10

17:55-10:00

2 stops16h 05m

Milltown (Kerry)

Wed 31/12

00:00-00:00

Nonstop0h 00m

£70

BelfastMilltown (Kerry)

BFS Belfast Intl - KIR Milltown (Kerry)

BFSKIR

Belfast Intl

Wed 21/10

08:30-15:35

1 stop7h 05m

Milltown (Kerry)

Wed 28/10

11:20-20:55

1 stop9h 35m

£78

BelfastMilltown (Kerry)

BFS Belfast Intl - KIR Milltown (Kerry)

BFSKIR

Belfast Intl

Wed 4/11

08:50-14:25

1 stop5h 35m

Milltown (Kerry)

Wed 11/11

14:50-20:30

1 stop5h 40m

£94

BelfastMilltown (Kerry)

BFS Belfast Intl - KIR Milltown (Kerry)

BFSKIR

Belfast Intl

Sat 17/10

07:40-17:30

2 stops9h 50m

Milltown (Kerry)

Tue 20/10

10:55-16:15

1 stop5h 20m

£114

BelfastMilltown (Kerry)

BFS Belfast Intl - KIR Milltown (Kerry)

BFSKIR

Belfast Intl

Fri 6/11

21:05-10:00

1 stop12h 55m

Milltown (Kerry)

Fri 13/11

17:35-09:05

2 stops15h 30m

£124

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Sorted by cheapest first

Best time to book a flight from Belfast Intl to Ireland

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

BFS-KIR

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 Belfast Intl Airport to Ireland

BFS-IE0

BFS-KIR

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 Belfast Intl Airport to Ireland?
While some choose either Belfast Intl - Cork or Belfast Intl - Shannon, Belfast Intl - Dublin is the most popular route from Belfast Intl Airport to Ireland.
Can I find deals for flights from Belfast Intl to Ireland that include hotel bookings?
Yes. In addition to deals on Belfast Intl to Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast Intl to Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Ireland.
Can I find deals for business class flights from Belfast Intl to Ireland?
Yes. Cheapflights offers flight deals from Belfast Intl to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

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Cheap flights from Belfast Intl Airport to Ireland from £38

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast Intl to Ireland

Cheapest flights from Belfast Intl to IrelandExplore the most affordable flight options available from Belfast Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Explore the most affordable flight options available from Belfast Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Best flights from Belfast Intl to IrelandDiscover carefully curated flight deals from Belfast Intl to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Discover carefully curated flight deals from Belfast Intl to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Last-minute flights from Belfast Intl to IrelandDiscover last-minute flight deals from Belfast Intl to Ireland. Data last updated 25 September 2026 and is based on user searches.

Discover last-minute flight deals from Belfast Intl to Ireland. Data last updated 25 September 2026 and is based on user searches.

One-way flights from Belfast Intl to IrelandSearch for one-way flight options from Belfast Intl to Ireland. Find affordable one-way fares based on user searches. Data last updated 25 September 2026.

Search for one-way flight options from Belfast Intl to Ireland. Find affordable one-way fares based on user searches. Data last updated 25 September 2026.

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

Best time to book a flight from Belfast Intl to Ireland

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

Cheapflights Insights

Related info for your journey

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

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

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

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

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 Belfast Intl to Ireland

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

Complete your trip

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

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

Search flights from Belfast Intl to Ireland by cabin class

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

Belfast Intl and Ireland flights

Browse other Belfast Intl and Ireland flight options. Last updated on 25 September 2026.

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Belfast Intl to Ireland flights

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

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Cheapest flights from Belfast Intl to Ireland
Explore the most affordable flight options available from Belfast Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 September 2026.

Best flights from Belfast Intl to Ireland
Discover carefully curated flight deals from Belfast Intl to Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 September 2026.

Last-minute flights from Belfast Intl to Ireland
Discover last-minute flight deals from Belfast Intl to Ireland. Data last updated 25 September 2026 and is based on user searches.

One-way flights from Belfast Intl to Ireland
Search for one-way flight options from Belfast Intl to Ireland. Find affordable one-way fares based on user searches. Data last updated 25 September 2026.