How long is the flight from Region of Ontario to Northern Ireland?

For as low as C$ 1,204, British Airways can have you in Northern Ireland from Region of Ontario in 18h 40m. There are 4752 km between Region of Ontario and Northern Ireland.

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

If weather is an important factor for your trip to Northern 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 is the cheapest time of day to fly from ON to NIR?

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

Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

Yes. In addition to deals on Ontario to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Northern Ireland?

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

Can I find deals for business class flights from Ontario to Northern Ireland?

Yes. Cheapflights offers flight deals from Ontario to Northern 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.

C$ 295+ Cheap Flights from Ontario to Northern Ireland

Cheap flight deals from Ontario to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Thu 1/1010:05 p.m. -

1 stop14h 45m

Sun 11/107:00 a.m. -

1 stop12h 15m

Deal found 9/9C$ 884

Wed 21/1010:15 p.m. -

1 stop14h 15m

Sat 31/109:45 a.m. -

2 stops38h 15m

Deal found 9/9C$ 887

Thu 22/1010:45 p.m. -

1 stop15h 35m

Mon 2/116:30 a.m. -

1 stop13h 30m

Deal found 6/9C$ 889

Sat 3/1011:50 p.m. -

1 stop18h 35m

Mon 12/107:05 a.m. -

1 stop13h 55m

Deal found 5/9C$ 891

Sun 27/910:05 p.m. -

1 stop28h 35m

Wed 7/106:10 a.m. -

1 stop13h 05m

Deal found 8/9C$ 903

Sun 11/1010:15 p.m. -

1 stop15h 10m

Sun 25/109:15 p.m. -

2 stops47h 40m

Deal found 8/9C$ 904

Sun 27/910:05 p.m. -

1 stop10h 35m

Wed 7/107:00 a.m. -

1 stop12h 15m

Deal found 8/9C$ 915

Mon 26/1010:35 p.m. -

1 stop18h 40m

Mon 2/116:30 a.m. -

1 stop13h 30m

Deal found 7/9C$ 918

Thu 22/1010:45 p.m. -

1 stop29h 15m

Thu 29/108:05 p.m. -

1 stop23h 55m

Deal found 7/9C$ 920

Mon 28/911:55 p.m. -

2 stops18h 10m

Tue 6/108:20 a.m. -

1 stop12h 20m

Deal found 7/9C$ 926

Sun 27/911:55 p.m. -

2 stops16h 35m

Tue 6/106:15 a.m. -

1 stop14h 25m

Deal found 6/9C$ 928

Mon 26/1010:35 p.m. -

1 stop11h 00m

Mon 2/117:20 a.m. -

1 stop12h 40m

Deal found 7/9C$ 944

Best flights from Ontario to Northern Ireland
Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Wed 21/1010:15 p.m. -

1 stop14h 15m

Sat 31/109:45 a.m. -

2 stops38h 15m

Deal found 9/9C$ 887

Sat 10/1010:00 p.m. -

1 stop29h 40m

Tue 13/109:40 a.m. -

1 stop15h 30m

Deal found 6/9C$ 1,158

Sat 3/1011:50 p.m. -

1 stop18h 35m

Mon 12/107:05 a.m. -

1 stop13h 55m

Deal found 5/9C$ 891

Sun 11/1010:15 p.m. -

1 stop15h 10m

Sun 25/109:15 p.m. -

2 stops47h 40m

Deal found 8/9C$ 904

Mon 28/122:00 p.m. -

3 stops18h 10m

Tue 29/125:55 p.m. -

3 stops32h 55m

Deal found 5/9C$ 2,054

Mon 26/1010:35 p.m. -

1 stop18h 40m

Mon 2/116:30 a.m. -

1 stop13h 30m

Deal found 7/9C$ 918

Fri 23/103:14 p.m. -

2 stops21h 56m

Sun 1/116:30 a.m. -

1 stop18h 45m

Deal found 5/9C$ 1,186

Thu 22/1010:45 p.m. -

1 stop29h 15m

Thu 29/108:05 p.m. -

1 stop23h 55m

Deal found 7/9C$ 920

Sat 10/1010:00 p.m. -

1 stop17h 30m

Wed 14/1010:05 a.m. -

1 stop15h 05m

Deal found 8/9C$ 1,186

Mon 28/911:55 p.m. -

2 stops18h 10m

Tue 6/108:20 a.m. -

1 stop12h 20m

Deal found 7/9C$ 926

Thu 1/1010:30 a.m. -

2 stops18h 40m

Sun 11/101:10 p.m. -

2 stops25h 42m

Deal found 9/9C$ 1,204

Sun 27/911:55 p.m. -

2 stops16h 35m

Tue 6/106:15 a.m. -

1 stop14h 25m

Deal found 6/9C$ 928

Thu 1/1010:30 a.m. -

2 stops18h 40m

Mon 12/106:30 p.m. -

2 stops44h 22m

Deal found 9/9C$ 1,212

Sat 17/106:10 p.m. -

2 stops14h 30m

Fri 23/107:00 a.m. -

2 stops30h 13m

Deal found 9/9C$ 1,011

Sat 10/106:35 p.m. -

2 stops33h 05m

Tue 13/1012:40 p.m. -

2 stops36h 20m

Deal found 5/9C$ 1,355

Sun 11/1011:50 p.m. -

1 stop15h 40m

Sun 25/107:30 a.m. -

1 stop15h 30m

Deal found 8/9C$ 1,045

Mon 21/910:00 p.m. -

2 stops15h 00m

Thu 8/107:30 p.m. -

2 stops34h 07m

Deal found 7/9C$ 1,387

Sun 27/911:10 a.m. -

2 stops22h 50m

Wed 7/106:15 a.m. -

1 stop14h 30m

Deal found 8/9C$ 1,067

Mon 21/98:35 p.m. -

2 stops18h 50m

Thu 8/1012:45 p.m. -

2 stops26h 55m

Deal found 7/9C$ 1,093

Sun 15/119:15 p.m. -

1 stop11h 35m

Wed 18/1111:40 a.m. -

1 stop12h 35m

Deal found 6/9C$ 1,563

Mon 12/104:00 p.m. -

2 stops18h 30m

Thu 15/108:10 p.m. -

1 stop21h 30m

Deal found 8/9C$ 1,124

Fri 23/106:05 p.m. -

1 stop9h 45m

Sun 1/116:30 a.m. -

1 stop18h 45m

Deal found 5/9C$ 1,148

Thu 1/104:15 p.m. -

2 stops26h 10m

Mon 12/108:15 a.m. -

2 stops16h 15m

Deal found 9/9C$ 1,209

Thu 22/104:00 p.m. -

2 stops23h 35m

Thu 29/106:30 a.m. -

2 stops22h 20m

Deal found 7/9C$ 1,215

Sun 11/104:55 p.m. -

2 stops15h 45m

Sun 25/107:30 a.m. -

2 stops18h 06m

Deal found 8/9C$ 1,534

Mon 12/106:30 p.m. -

2 stops13h 25m

Mon 26/106:35 a.m. -

2 stops15h 44m

Deal found 6/9C$ 1,612

Mon 28/1212:45 p.m. -

2 stops15h 20m

Tue 29/127:30 p.m. -

2 stops31h 45m

Deal found 5/9C$ 1,858

Mon 21/94:30 p.m. -

2 stops15h 25m

Thu 15/106:30 a.m. -

2 stops13h 30m

Deal found 7/9C$ 11,665

Find flight deals from Ontario to Northern Ireland

Round-trip from	C$ 789
One-way from	C$ 295

8/1-13/1
4 total stops
59h 40m total
Ontario to Northern Ireland

Search Deals

16/10-31/12
1 total stop
13h 15m total
Ontario to Northern Ireland

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Fri 16/10

10:15 p.m.-4:30 p.m.

1 stop13h 15m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 295

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Tue 20/10

11:55 p.m.-11:20 p.m.

2 stops18h 25m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 335

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Thu 8/10

11:55 p.m.-10:45 a.m.

2 stops29h 50m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 347

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Sat 24/10

9:35 p.m.-11:45 a.m.

2 stops34h 10m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 386

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Tue 6/10

6:25 p.m.-7:50 p.m.

3 stops20h 25m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 430

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

6:45 a.m.-8:45 p.m.

2 stops33h 00m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 430

HamiltonBelfast

YHM Hamilton - BFS Belfast Intl

YHMBFS

Hamilton

Wed 21/10

6:05 a.m.-7:15 p.m.

3 stops32h 10m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 432

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Mon 21/9

9:05 p.m.-7:05 p.m.

1 stop17h 00m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 473

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

YTZBFS

Toronto Island

Thu 22/10

4:55 p.m.-7:20 p.m.

2 stops21h 25m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 483

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

YTZBFS

Toronto Island

Mon 21/9

12:55 p.m.-10:40 a.m.

2 stops40h 45m

Belfast Intl

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 492

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 45 resultsSorted by cheapest first

...

Best time to book a flight from Ontario to Northern Ireland

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

YYZ-BFS

YUL-BFS

YOW-BFS

YHM-BFS

YTZ-BFS

Estimated round-trip 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 Ontario to Northern Ireland

CAON-GBNIR

YYZ-BFS

YUL-BFS

YOW-BFS

YHM-BFS

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

Reviews of airlines servicing Northern Ireland

Check out reviews from past customers who have flown with British Airways from Ontario to Northern Ireland to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

8,210 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2026

BUD - LHR

We had an absolute nightmare experience with British Airways. Check in was bad. They “lost” our business class seats that I selected a long time ago. Our luggage almost didn’t make it on the plane in London to LAX. Flight attendant was rude!! Not that it should matter but she thought bc of the seat assignment issue we were “upgraded” and that’s we had no choice in meals. Not that the meals were any good anyway.

British Airways

6.7

Okay

8,210 reviews

British Airways

6.7

Okay

8,210 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Jul 2026

BUD - LHR

Related info for your journey

How long is the flight from Region of Ontario to Northern Ireland?
For as low as C$ 1,204, British Airways can have you in Northern Ireland from Region of Ontario in 18h 40m. There are 4752 km between Region of Ontario and Northern Ireland.
Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?
Yes. In addition to deals on Ontario to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Northern Ireland.
Can I find deals for business class flights from Ontario to Northern Ireland?
Yes. Cheapflights offers flight deals from Ontario to Northern 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Return Flight Options

Top destinations

Alternative routes for Ontario to Northern Ireland

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Top airline flying from Ontario to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
British Airways	CheapestC$ 1,041	AverageC$ 1,440	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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How does Cheapflights help users find flights from Ontario to Northern Ireland?

Deals for Ontario to Northern Ireland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Northern Ireland?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Northern Ireland 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 Ontario to Northern Ireland with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to Northern Ireland with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Northern Ireland become cheaper?

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

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Cheap flights from Ontario to Northern Ireland from C$ 295

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Northern Ireland

Cheapest flights from Ontario to Northern IrelandExplore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Ontario to Northern IrelandDiscover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Last-minute flights from Ontario to Northern IrelandDiscover last-minute flight deals from Ontario to Northern Ireland. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Northern Ireland. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Ontario to Northern IrelandSearch for one-way flight options from Ontario to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Search for one-way flight options from Ontario to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Find flight deals from Ontario to Northern Ireland

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Best time to book a flight from Ontario to Northern Ireland

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

Cheapflights Insights

Reviews of airlines servicing Northern Ireland

Check out reviews from past customers who have flown with British Airways from Ontario to Northern Ireland to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Region of Ontario to Northern Ireland?

Can I find deals for flights from Ontario to Northern Ireland that include hotel bookings?

How can I find direct flights from Ontario to Northern Ireland?

Can I find deals for business class flights from Ontario to Northern 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 Ontario to Northern Ireland

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

Complete your trip

Complete your trip to Northern Ireland by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United Kingdom

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

Search flights from Ontario to Northern Ireland by cabin class

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

Ontario and Northern Ireland flights

Browse other Ontario and Northern Ireland flight options. Last updated on 9 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Northern Ireland

Find the right flight back to Ontario after your stay in Northern Ireland

Ontario to Northern Ireland flights

Consider these flights travelling from Ontario to Northern Ireland.

Top airline flying from Ontario to Northern Ireland

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How does Cheapflights help users find flights from Ontario to Northern Ireland?

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Can Cheapflights find flights from Ontario to Northern Ireland with no change fees?

Can Cheapflights notify me if prices for flights from Ontario to Northern Ireland become cheaper?

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Travel Smart

Cheapest flights from Ontario to Northern Ireland
Explore the most affordable flight options available from Ontario to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Ontario to Northern Ireland
Discover carefully curated flight deals from Ontario to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Last-minute flights from Ontario to Northern Ireland
Discover last-minute flight deals from Ontario to Northern Ireland. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Ontario to Northern Ireland
Search for one-way flight options from Ontario to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.