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Cheap flights from Ontario to Northern Ireland from C$ 397

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
1 Jan — 8 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 2 December 2025.

Wed 31/126:50 a.m.YYZ - BFS
3 stops28h 20mMultiple Airlines
Wed 7/17:55 p.m.BFS - YYZ
2 stops20h 55mMultiple Airlines
Deal found 29/11C$ 1,264
Wed 31/129:35 p.m.YYZ - BHD
1 stop11h 00mMultiple Airlines
Wed 7/110:10 a.m.BHD - YYZ
1 stop30h 40mMultiple Airlines
Deal found 29/11C$ 1,447
Tue 9/123:00 p.m.YOW - BHD
2 stops14h 30mMultiple Airlines
Tue 16/123:05 p.m.BHD - YOW
2 stops31h 04mMultiple Airlines
Deal found 2/12C$ 1,523
Wed 31/125:25 p.m.YYZ - BHD
2 stops17h 55mAer Lingus
Wed 7/16:50 p.m.BHD - YYZ
2 stops50h 05mAer Lingus
Deal found 2/12C$ 1,528
Wed 31/125:40 p.m.YYZ - BHD
1 stop11h 35mBritish Airways
Wed 7/16:50 p.m.BHD - YYZ
2 stops26h 05mBritish Airways
Deal found 2/12C$ 1,573
Wed 31/126:23 p.m.YYZ - BHD
2 stops14h 52mAmerican Airlines
Wed 7/111:25 a.m.BHD - YYZ
2 stops15h 26mAmerican Airlines
Deal found 29/11C$ 1,576
Wed 31/125:50 p.m.YYZ - BHD
1 stop18h 00mDelta
Wed 7/15:20 p.m.BHD - YYZ
2 stops29h 03mDelta
Deal found 1/12C$ 1,581
Wed 31/1210:55 p.m.YYZ - BHD
2 stops17h 05mKLM
Wed 7/15:20 p.m.BHD - YYZ
2 stops29h 03mKLM
Deal found 1/12C$ 1,618
Tue 9/123:00 p.m.YOW - BFS
2 stops14h 20mMultiple Airlines
Tue 16/121:55 p.m.BFS - YOW
3 stops31h 56mMultiple Airlines
Deal found 2/12C$ 1,762

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 2 December 2025.

Round-trip from

C$ 740

One-way from

C$ 397

Popular in

July

Cheapest in

October

Average price

C$ 1,797
22/1-29/1
  • 22/1-29/1
  • 4 total stops
  • 38h 25m total
  • Ontario to Northern Ireland
Search Deals
17/1
  • 17/1
  • 2 total stops
  • 42h 40m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 882 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease (C$ 356 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 2 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 22/1

7:40 p.m.-10:20 p.m.

2 stops21h 40m

Belfast Intl

Thu 29/1

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

2 stops16h 45m

C$ 740

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 16/1

9:35 p.m.-8:55 a.m.

1 stop30h 20m

Belfast Intl

Fri 23/1

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

1 stop13h 30m

C$ 846

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 14/5

11:55 p.m.-7:30 p.m.

2 stops14h 35m

Belfast Intl

Thu 28/5

12:45 p.m.-1:20 p.m.

2 stops29h 35m

C$ 879

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 25/2

5:40 p.m.-9:10 a.m.

1 stop10h 30m

Belfast City

Sun 1/3

3:10 p.m.-5:28 p.m.

2 stops31h 18m

C$ 944

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 25/2

10:05 p.m.-4:35 p.m.

1 stop13h 30m

Belfast City

Sun 1/3

5:35 p.m.-2:50 p.m.

1 stop26h 15m

C$ 965

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Fri 16/1

10:05 p.m.-9:10 a.m.

1 stop30h 05m

Belfast City

Mon 19/1

9:15 a.m.-8:15 p.m.

1 stop16h 00m

C$ 988

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

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

1 stop12h 35m

Belfast City

Sun 25/1

3:10 p.m.-10:44 p.m.

2 stops36h 34m

C$ 997

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Fri 16/1

8:10 p.m.-3:10 p.m.

2 stops14h 00m

Belfast Intl

Fri 23/1

8:05 a.m.-12:15 p.m.

2 stops33h 10m

C$ 1,000

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Fri 16/1

6:05 p.m.-2:15 p.m.

1 stop15h 10m

Belfast City

Mon 19/1

6:35 a.m.-5:40 p.m.

2 stops16h 05m

C$ 1,018

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 6/3

9:55 p.m.-10:45 p.m.

2 stops19h 50m

Belfast Intl

Wed 11/3

6:00 a.m.-4:00 p.m.

1 stop14h 00m

C$ 1,021

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/11

Showing 1-10 of 32 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$ 830). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of C$ 1,400). 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 2 December 2025.

It’s typically best to fly out from Region of Ontario to Northern Ireland in the evening. Doing so could potentially save you 35% 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 2 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
7,550 reviews
Check prices

Crew

7.6

Entertainment

6.4

Comfort

6.7

Overall

6.7

Boarding

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Amit,Nov 2025

BOM - LHR

Food and presentation were excellent. Staff was very courteous. On time boarding, on time flight. Comfortable seats (lie flats) and clear announcements and updates.
British Airways
6.7
Okay
7,550 reviews
British Airways
6.7
Okay
7,550 reviews
Check prices

Crew

7.6

Entertainment

6.4

Comfort

6.7

Overall

6.7

Boarding

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Amit,Nov 2025

BOM - LHR

Food and presentation were excellent. Staff was very courteous. On time boarding, on time flight. Comfortable seats (lie flats) and clear announcements and updates.

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$ 944, American Airlines can have you in Northern Ireland from Region of Ontario in 10h 30m. 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$ 830). Flying from Region of Ontario to Northern Ireland in July is currently the most expensive (average of C$ 1,400). 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 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 835AverageC$ 1,288FlexibilityNo 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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