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Cheap flights from Ontario to Northern Ireland from C$ 436

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.
YYZ — BFS
12 Dec — 19 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 November 2025.

Round-trip from

C$ 848

One-way from

C$ 436

Popular in

July

Cheapest in

October

Average price

C$ 2,340
7/3-15/3
  • 7/3-15/3
  • 2 total stops
  • 23h 35m total
  • Ontario to Northern Ireland
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9/2
  • 9/2
  • 2 total stops
  • 45h 20m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 885 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (C$ 358 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 12 November 2025.

Mon 17/116:20 p.m.YYZ - BHD
2 stops14h 55mAmerican Airlines
Mon 24/1111:30 a.m.BHD - YYZ
2 stops16h 00mAmerican Airlines
Deal found 10/11C$ 967
Mon 8/126:24 p.m.YYZ - BHD
2 stops14h 51mAmerican Airlines
Mon 15/126:35 a.m.BHD - YYZ
2 stops15h 52mAmerican Airlines
Deal found 10/11C$ 972
Mon 17/119:35 p.m.YYZ - BFS
1 stop31h 30mMultiple Airlines
Mon 24/118:55 p.m.BFS - YYZ
1 stop23h 05mMultiple Airlines
Deal found 10/11C$ 983
Wed 12/117:05 a.m.YYZ - BHD
2 stops22h 10mMultiple Airlines
Wed 19/1111:25 a.m.BHD - YYZ
1 stop13h 50mMultiple Airlines
Deal found 11/11C$ 987
Mon 17/119:35 p.m.YYZ - BHD
1 stop11h 00mMultiple Airlines
Mon 24/112:15 p.m.BHD - YYZ
1 stop29h 45mMultiple Airlines
Deal found 10/11C$ 1,047
Mon 8/1212:00 p.m.YYZ - BFS
2 stops28h 40mMultiple Airlines
Mon 15/128:40 a.m.BFS - YYZ
2 stops18h 04mMultiple Airlines
Deal found 10/11C$ 1,073
Wed 12/119:35 p.m.YYZ - BFS
1 stop29h 55mMultiple Airlines
Thu 20/116:30 a.m.BFS - YYZ
1 stop13h 30mMultiple Airlines
Deal found 10/11C$ 1,130
Wed 12/115:40 p.m.YYZ - BHD
1 stop11h 35mBritish Airways
Thu 20/1111:05 a.m.BHD - YYZ
1 stop14h 10mBritish Airways
Deal found 10/11C$ 1,148
Thu 13/116:20 p.m.YYZ - BHD
2 stops14h 40mBritish Airways
Sat 15/116:00 p.m.BHD - YYZ
1 stop25h 50mBritish Airways
Deal found 9/11C$ 1,192
Wed 12/114:44 p.m.YYZ - BHD
2 stops16h 31mBritish Airways
Wed 19/117:25 p.m.BHD - YYZ
2 stops31h 33mBritish Airways
Deal found 11/11C$ 1,193
Thu 13/119:35 p.m.YYZ - BFS
1 stop19h 45mMultiple Airlines
Sat 15/118:10 a.m.BFS - YYZ
1 stop11h 50mMultiple Airlines
Deal found 9/11C$ 1,223
Thu 13/119:35 p.m.YYZ - BHD
1 stop17h 55mMultiple Airlines
Sat 15/117:25 a.m.BHD - YYZ
1 stop12h 35mMultiple Airlines
Deal found 9/11C$ 1,235

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 12 November 2025.
Use the filters below to find and compare flights from Ontario to Northern Ireland that are best for you.

Fly from

Ontario

Fly to

Northern Ireland

Route

Depart

Return

Price

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Sat 7/3

9:35 p.m.-1:35 p.m.

1 stop11h 00m

Belfast City

Sun 15/3

7:25 a.m.-4:00 p.m.

1 stop12h 35m

C$ 848

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 11/3

10:35 p.m.-10:20 p.m.

1 stop19h 45m

Belfast Intl

Tue 24/3

8:35 a.m.-4:00 p.m.

1 stop11h 25m

C$ 903

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 13/1

8:40 p.m.-11:30 a.m.

1 stop9h 50m

Belfast City

Mon 19/1

6:35 a.m.-6:45 p.m.

1 stop17h 10m

C$ 958

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Mon 12/1

8:40 p.m.-2:15 p.m.

1 stop12h 35m

Belfast City

Wed 21/1

11:25 a.m.-6:45 p.m.

1 stop12h 20m

C$ 958

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

8:40 p.m.-2:15 p.m.

1 stop12h 35m

Belfast City

Mon 19/1

9:15 a.m.-6:45 p.m.

1 stop14h 30m

C$ 958

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 8/12

6:24 p.m.-2:15 p.m.

2 stops14h 51m

Belfast City

Mon 15/12

6:35 a.m.-5:27 p.m.

2 stops15h 52m

C$ 972

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 14/3

8:15 p.m.-10:10 a.m.

1 stop9h 55m

Belfast Intl

Sat 21/3

9:05 p.m.-12:40 p.m.

1 stop19h 35m

C$ 981

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 11/3

10:35 p.m.-8:30 p.m.

1 stop17h 55m

Belfast City

Tue 24/3

7:20 a.m.-4:00 p.m.

1 stop12h 40m

C$ 997

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

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

1 stop20h 55m

Belfast Intl

Fri 23/1

5:30 p.m.-12:40 p.m.

1 stop24h 10m

C$ 1,000

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

8:40 p.m.-2:15 p.m.

1 stop12h 35m

Belfast City

Sun 25/1

12:10 p.m.-6:45 p.m.

1 stop11h 35m

C$ 1,017

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 43 results
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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

What is the cheapest month to book a flight from Region of Ontario to Northern Ireland?

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Northern Ireland (average of C$ 833). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of C$ 1,404). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to NIR?

Find hourly flight availability from Ontario to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 November 2025.

It’s typically best to fly out from Region of Ontario to Northern Ireland in the evening. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

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 12 November 2025.
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
7,513 reviews
Check prices

Overall

6.7

Comfort

6.7

Crew

7.6

Boarding

6.9

Food

6.3

Entertainment

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

ALG - LGW

Didn't like anything from this flight starting with the lady at the counter. Nasty attitude.
British Airways
6.7
Okay
7,513 reviews
British Airways
6.7
Okay
7,513 reviews
Check prices

Overall

6.7

Comfort

6.7

Crew

7.6

Boarding

6.9

Food

6.3

Entertainment

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

ALG - LGW

Didn't like anything from this flight starting with the lady at the counter. Nasty attitude.

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$ 958, American Airlines can have you in Northern Ireland from Region of Ontario in 9h 50m. There are 4752 km between Region of Ontario and Northern Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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.

  • What is the cheapest month to book a flight from Region of Ontario to Northern Ireland?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Northern Ireland (average of C$ 833). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of C$ 1,404). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 12 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 837AverageC$ 1,312FlexibilityNo 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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