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Cheap flights from Ontario to Northern Ireland from C$ 441

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
22 Jan — 29 Jan1
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 23 December 2025.

Mon 22/128:40 p.m.YUL - BHD
1 stop12h 35mBritish Airways
Mon 29/126:35 a.m.BHD - YUL
1 stop17h 10mBritish Airways
Deal found 22/12C$ 1,574
Mon 22/127:05 p.m.YUL - BHD
2 stops20h 55mKLM
Mon 29/126:30 a.m.BHD - YUL
2 stops21h 49mKLM
Deal found 22/12C$ 1,980
Mon 22/125:20 p.m.YOW - BHD
2 stops22h 40mKLM
Mon 29/125:20 p.m.BHD - YOW
2 stops26h 50mKLM
Deal found 21/12C$ 2,078
Mon 22/123:00 p.m.YOW - BHD
2 stops18h 15mMultiple Airlines
Mon 29/127:25 p.m.BHD - YOW
2 stops28h 00mMultiple Airlines
Deal found 21/12C$ 2,186
Mon 22/128:40 p.m.YUL - BHD
2 stops14h 40mMultiple Airlines
Mon 29/122:40 p.m.BHD - YUL
2 stops15h 03mMultiple Airlines
Deal found 21/12C$ 2,218
Mon 22/1210:45 p.m.YYZ - BFS
2 stops17h 25mMultiple Airlines
Wed 24/128:35 a.m.BFS - YYZ
2 stops35h 10mMultiple Airlines
Deal found 21/12C$ 2,266
Mon 22/127:40 p.m.YYZ - BHD
2 stops16h 40mMultiple Airlines
Wed 24/1210:15 a.m.BHD - YYZ
2 stops33h 30mMultiple Airlines
Deal found 21/12C$ 2,283

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 23 December 2025.

Round-trip from

C$ 767

One-way from

C$ 441

Popular in

July

Cheapest in

October

Average price

C$ 1,769
5/2-12/2
  • 5/2-12/2
  • 2 total stops
  • 33h 15m total
  • Ontario to Northern Ireland
Search Deals
4/2
  • 4/2
  • 3 total stops
  • 47h 05m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 857 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (C$ 345 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 23 December 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 - BFS

YYZBFS

Toronto Pearson Intl

Thu 5/2

9:35 p.m.-10:20 p.m.

1 stop19h 45m

Belfast Intl

Thu 12/2

6:30 a.m.-3:00 p.m.

1 stop13h 30m

C$ 767

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 3/2

9:35 p.m.-5:55 p.m.

1 stop15h 20m

Belfast Intl

Tue 10/2

8:55 p.m.-3:00 p.m.

1 stop23h 05m

C$ 799

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Mon 12/1

6:55 p.m.-8:10 p.m.

2 stops20h 15m

Belfast Intl

Tue 20/1

8:55 p.m.-6:28 p.m.

2 stops26h 33m

C$ 907

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 19/1

7:40 p.m.-8:30 p.m.

2 stops19h 50m

Belfast City

Mon 26/1

7:20 a.m.-6:15 p.m.

2 stops15h 55m

C$ 928

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/4

10:00 p.m.-3:35 p.m.

1 stop12h 35m

Belfast City

Sun 12/4

7:10 p.m.-4:05 p.m.

1 stop25h 55m

C$ 932

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/4

10:00 p.m.-3:35 p.m.

1 stop12h 35m

Belfast City

Mon 13/4

9:50 a.m.-4:05 p.m.

1 stop11h 15m

C$ 932

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Mon 19/1

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

1 stop12h 35m

Belfast City

Mon 2/2

11:30 a.m.-6:45 p.m.

1 stop12h 15m

C$ 953

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 19/1

7:40 p.m.-7:05 p.m.

2 stops18h 25m

Belfast Intl

Mon 26/1

8:30 a.m.-6:15 p.m.

2 stops14h 45m

C$ 953

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 19/1

10:05 p.m.-2:15 p.m.

1 stop11h 10m

Belfast City

Mon 26/1

6:35 a.m.-2:50 p.m.

1 stop13h 15m

C$ 958

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 23/3

11:05 p.m.-4:05 p.m.

1 stop13h 00m

Belfast City

Mon 30/3

9:50 a.m.-4:05 p.m.

1 stop11h 15m

C$ 960

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/12

Showing 1-10 of 45 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$ 818). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of C$ 1,378). 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.

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 23 December 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
7,605 reviews
Check prices

Crew

7.6

Entertainment

6.4

Food

6.4

Boarding

6.9

Overall

6.7

Comfort

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,605 reviews
British Airways
6.7
Okay
7,605 reviews
Check prices

Crew

7.6

Entertainment

6.4

Food

6.4

Boarding

6.9

Overall

6.7

Comfort

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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$ 932, British Airways can have you in Northern Ireland from Region of Ontario in 12h 35m. There are 5237 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$ 818). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of C$ 1,378). 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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 822AverageC$ 1,264FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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