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Cheap flights from Ontario to Northern Ireland from C$ 365

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
23 Apr — 30 Apr1
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 24 March 2026.

Mon 4/57:15 p.m.
YYZ
-
BFS
2 stops23h 05m
Multiple Airlines
Mon 11/56:30 a.m.
BFS
-
YYZ
2 stops14h 20m
Multiple Airlines
Deal found 19/3C$ 840
Mon 4/58:35 p.m.
YUL
-
BFS
2 stops18h 50m
Multiple Airlines
Sat 30/56:20 a.m.
BFS
-
YUL
1 stop12h 55m
Multiple Airlines
Deal found 23/3C$ 904
Sat 23/57:15 p.m.
YYZ
-
BFS
1 stop20h 35m
Multiple Airlines
Sun 31/59:25 p.m.
BFS
-
YYZ
1 stop18h 35m
Multiple Airlines
Deal found 20/3C$ 910
Sat 23/57:15 p.m.
YYZ
-
BHD
1 stop14h 20m
Multiple Airlines
Sun 31/53:05 p.m.
BHD
-
YYZ
1 stop24h 55m
Multiple Airlines
Deal found 20/3C$ 917
Mon 6/410:35 p.m.
YYZ
-
BFS
1 stop28h 00m
Multiple Airlines
Tue 21/48:55 p.m.
BFS
-
YYZ
1 stop24h 05m
Multiple Airlines
Deal found 23/3C$ 919
Thu 28/511:50 p.m.
YYZ
-
BFS
1 stop16h 50m
Multiple Airlines
Fri 5/610:10 p.m.
BFS
-
YYZ
1 stop22h 50m
Multiple Airlines
Deal found 21/3C$ 923
Mon 4/58:35 p.m.
YUL
-
BHD
2 stops18h 55m
Multiple Airlines
Sat 30/57:00 a.m.
BHD
-
YUL
1 stop12h 15m
Multiple Airlines
Deal found 23/3C$ 941
Sun 5/77:15 p.m.
YYZ
-
BFS
1 stop14h 20m
Multiple Airlines
Sun 12/79:25 p.m.
BFS
-
YYZ
1 stop18h 35m
Multiple Airlines
Deal found 20/3C$ 966
Sun 7/610:05 p.m.
YYZ
-
BHD
1 stop8h 50m
Multiple Airlines
Sun 21/612:50 p.m.
BHD
-
YYZ
1 stop29h 20m
Multiple Airlines
Deal found 21/3C$ 970
Tue 1/97:15 p.m.
YYZ
-
BFS
1 stop16h 05m
Multiple Airlines
Tue 8/99:15 p.m.
BFS
-
YYZ
1 stop18h 45m
Multiple Airlines
Deal found 22/3C$ 982
Wed 2/97:15 p.m.
YYZ
-
BFS
1 stop16h 50m
Multiple Airlines
Wed 9/95:40 p.m.
BFS
-
YYZ
1 stop22h 20m
Multiple Airlines
Deal found 23/3C$ 984
Thu 28/511:50 p.m.
YYZ
-
BHD
1 stop12h 30m
Multiple Airlines
Fri 5/67:00 a.m.
BHD
-
YYZ
1 stop14h 00m
Multiple Airlines
Deal found 21/3C$ 984

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 24 March 2026.

Round-trip from

C$ 840

One-way from

C$ 365

Popular in

July

Cheapest in

February

Average price

C$ 1,692
4/5-11/5
  • 4/5-11/5
  • 4 total stops
  • 37h 25m total
  • Ontario to Northern Ireland
Search Deals
5/5
  • 5/5
  • 3 total stops
  • 16h 00m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (C$ 845 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease (C$ 375 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 24 March 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 - BFS

YYZBFS

Toronto Pearson Intl

Mon 4/5

7:15 p.m.-4:15 p.m.

1 stop16h 00m

Belfast Intl

Mon 11/5

9:55 p.m.-1:20 p.m.

2 stops20h 25m

C$ 851

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 23/5

7:15 p.m.-8:50 p.m.

1 stop20h 35m

Belfast Intl

Sun 31/5

9:25 p.m.-11:00 a.m.

1 stop18h 35m

C$ 910

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 6/4

10:35 p.m.-7:35 a.m.

1 stop28h 00m

Belfast Intl

Tue 21/4

8:55 p.m.-4:00 p.m.

1 stop24h 05m

C$ 919

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Thu 28/5

11:50 p.m.-9:40 p.m.

1 stop16h 50m

Belfast Intl

Fri 5/6

10:10 p.m.-4:00 p.m.

1 stop22h 50m

C$ 923

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 5/7

7:15 p.m.-2:35 p.m.

1 stop14h 20m

Belfast Intl

Sun 12/7

9:25 p.m.-11:00 a.m.

1 stop18h 35m

C$ 966

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

8:25 p.m.-7:05 p.m.

1 stop17h 40m

Belfast Intl

Tue 28/4

2:45 p.m.-12:50 p.m.

1 stop27h 05m

C$ 989

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 5/9

7:15 p.m.-8:50 p.m.

1 stop20h 35m

Belfast Intl

Sat 12/9

10:25 p.m.-11:00 a.m.

1 stop17h 35m

C$ 996

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 6/4

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

1 stop16h 55m

Belfast City

Tue 21/4

2:20 p.m.-4:00 p.m.

1 stop30h 40m

C$ 1,018

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Sun 26/7

6:25 p.m.-2:35 p.m.

2 stops15h 10m

Belfast Intl

Sun 9/8

9:25 p.m.-5:35 p.m.

2 stops25h 10m

C$ 1,025

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 17/8

7:15 p.m.-10:15 p.m.

1 stop22h 00m

Belfast Intl

Sat 29/8

10:25 p.m.-11:00 a.m.

1 stop17h 35m

C$ 1,058

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

Showing 1-10 of 60 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 24 March 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
7,813 reviews
Check prices

Boarding

6.9

Comfort

6.8

Entertainment

6.4

Overall

6.7

Food

6.4

Crew

7.6

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance
British Airways
6.7
Okay
7,813 reviews
British Airways
6.7
Okay
7,813 reviews
Check prices

Boarding

6.9

Comfort

6.8

Entertainment

6.4

Overall

6.7

Food

6.4

Crew

7.6

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance

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$ 1,507, British Airways can have you in Northern Ireland from Region of Ontario in 9h 30m. 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.

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 24 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 815AverageC$ 1,239FlexibilityNo 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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