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Cheap flights from Ontario to Northern Ireland from C$ 348

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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Northern Ireland

Enter your travel dates to find the best prices.

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 10 August 2026.

Tue 15/97:15 p.m. -
1 stop19h 25m
Tue 22/99:15 p.m. -
1 stop18h 45m
Deal found 6/8C$ 792
Thu 1/107:35 a.m. -
2 stops30h 25m
Fri 16/106:15 a.m. -
1 stop14h 25m
Deal found 9/8C$ 854
Wed 23/94:00 p.m. -
2 stops23h 15m
Thu 8/108:55 p.m. -
1 stop20h 45m
Deal found 7/8C$ 886
Thu 1/106:15 p.m. -
2 stops15h 45m
Fri 16/107:00 a.m. -
2 stops30h 13m
Deal found 9/8C$ 900
Wed 23/94:00 p.m. -
2 stops22h 40m
Thu 8/108:40 p.m. -
1 stop21h 00m
Deal found 7/8C$ 907
Tue 15/98:19 a.m. -
2 stops24h 41m
Tue 22/96:15 a.m. -
2 stops34h 25m
Deal found 9/8C$ 909
Wed 16/99:55 p.m. -
1 stop14h 10m
Sat 3/106:00 a.m. -
1 stop14h 40m
Deal found 7/8C$ 910
Wed 16/99:55 p.m. -
1 stop11h 35m
Sat 3/107:00 a.m. -
1 stop13h 40m
Deal found 7/8C$ 931
Tue 15/97:00 p.m. -
2 stops23h 20m
Sat 26/96:20 a.m. -
2 stops19h 10m
Deal found 7/8C$ 964
Sat 19/910:05 p.m. -
1 stop17h 20m
Mon 5/106:10 a.m. -
2 stops18h 20m
Deal found 9/8C$ 988
Sun 9/810:15 p.m. -
1 stop11h 40m
Mon 24/86:30 p.m. -
1 stop24h 40m
Deal found 6/8C$ 1,003
Sun 9/810:15 p.m. -
1 stop11h 40m
Tue 18/86:35 p.m. -
1 stop24h 35m
Deal found 6/8C$ 1,010

Find flight deals from Ontario to Northern Ireland

Keep the following information in mind while searching for Ontario to Northern Ireland flight deals. Data was last updated 10 August 2026.

Round-trip from

C$ 792

One-way from

C$ 348
15/9-22/9
  • 15/9-22/9
  • 2 total stops
  • 38h 10m total
  • Ontario to Northern Ireland
Search Deals
22/10
  • 22/10
  • 2 total stops
  • 37h 55m total
  • Ontario to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Northern Ireland 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 629,999 searches. Data last updated 10 August 2026.
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

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Tue 15/9

7:15 p.m.-7:40 p.m.

1 stop19h 25m

Belfast Intl

Tue 22/9

9:15 p.m.-11:00 a.m.

1 stop18h 45m

C$ 792

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Thu 1/10

7:35 a.m.-7:00 p.m.

2 stops30h 25m

Belfast Intl

Fri 16/10

7:55 p.m.-2:10 p.m.

2 stops23h 15m

C$ 854

OttawaBelfast

YOW Ottawa - BFS Belfast Intl

YOWBFS

Ottawa

Wed 23/9

4:00 p.m.-8:15 p.m.

2 stops23h 15m

Belfast Intl

Thu 8/10

8:55 p.m.-12:40 p.m.

1 stop20h 45m

C$ 886

TorontoBelfast

YYZ Toronto Pearson Intl - BHD Belfast City

YYZBHD

Toronto Pearson Intl

Thu 1/10

6:15 p.m.-3:00 p.m.

2 stops15h 45m

Belfast City

Fri 16/10

7:00 a.m.-8:13 a.m.

2 stops30h 13m

C$ 900

TorontoBelfast

YTZ Toronto Island - BFS Belfast Intl

YTZBFS

Toronto Island

Tue 15/9

8:19 a.m.-2:00 p.m.

2 stops24h 41m

Belfast Intl

Tue 22/9

6:15 a.m.-11:40 a.m.

2 stops34h 25m

C$ 909

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Wed 16/9

9:55 p.m.-5:05 p.m.

1 stop14h 10m

Belfast Intl

Sat 3/10

6:00 a.m.-3:40 p.m.

1 stop14h 40m

C$ 910

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

7:00 p.m.-11:20 p.m.

2 stops23h 20m

Belfast Intl

Sat 26/9

6:20 a.m.-8:30 p.m.

2 stops19h 10m

C$ 964

MontrealBelfast

YUL Montreal Pierre Elliott Trudeau Intl - BFS Belfast Intl

YULBFS

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

10:05 p.m.-8:25 p.m.

1 stop17h 20m

Belfast Intl

Mon 5/10

6:10 a.m.-7:30 p.m.

2 stops18h 20m

C$ 988

TorontoBelfast

YYZ Toronto Pearson Intl - BFS Belfast Intl

YYZBFS

Toronto Pearson Intl

Sun 1/11

5:25 p.m.-8:10 p.m.

2 stops21h 45m

Belfast Intl

Mon 9/11

6:30 a.m.-3:20 p.m.

2 stops37h 50m

C$ 999

TorontoBelfast

YYZ Toronto Pearson Intl - BHD Belfast City

YYZBHD

Toronto Pearson Intl

Sun 1/11

5:25 p.m.-8:30 p.m.

2 stops22h 05m

Belfast City

Mon 9/11

7:20 a.m.-3:20 p.m.

2 stops37h 00m

C$ 1,013

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 51 resultsSorted by cheapest first
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6

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.
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

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

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated 10 August 2026.
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
8,153 reviews
Check prices

Entertainment

6.5

Comfort

6.8

Crew

7.7

Food

6.4

Boarding

7.0

Overall

6.7

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
8,153 reviews
British Airways
6.7
Okay
8,153 reviews
Check prices

Entertainment

6.5

Comfort

6.8

Crew

7.7

Food

6.4

Boarding

7.0

Overall

6.7

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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as C$ 1,122, British Airways can have you in Northern Ireland from Region of Ontario in 13h 30m. There are 5237 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

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Alternative routes for Ontario to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ontario to Northern Ireland

Discover the top airline that operate flights from Ontario to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 993AverageC$ 1,482FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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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