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Cheap flights from Ontario to Northern Ireland from C$ 344

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
5 May — 12 May1
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 5 April 2026.

Mon 18/59:35 p.m.
YYZ
-
BFS
2 stops20h 45m
Multiple Airlines
Wed 3/63:40 p.m.
BFS
-
YYZ
3 stops30h 35m
Multiple Airlines
Deal found 31/3C$ 739
Mon 25/59:35 p.m.
YYZ
-
BFS
2 stops13h 40m
Multiple Airlines
Wed 10/63:40 p.m.
BFS
-
YYZ
3 stops35h 05m
Multiple Airlines
Deal found 2/4C$ 757
Sun 31/54:15 p.m.
YYZ
-
BFS
3 stops24h 15m
Multiple Airlines
Wed 10/68:15 p.m.
BFS
-
YYZ
2 stops24h 35m
Multiple Airlines
Deal found 2/4C$ 807
Mon 1/69:35 p.m.
YYZ
-
BFS
2 stops20h 45m
Multiple Airlines
Wed 10/68:15 p.m.
BFS
-
YYZ
2 stops24h 35m
Multiple Airlines
Deal found 2/4C$ 809
Fri 29/510:15 p.m.
YYZ
-
BFS
1 stop13h 15m
Multiple Airlines
Fri 12/65:05 p.m.
BFS
-
YYZ
2 stops25h 55m
Multiple Airlines
Deal found 2/4C$ 818
Wed 13/57:15 p.m.
YYZ
-
BFS
1 stop16h 50m
Multiple Airlines
Wed 27/55:40 p.m.
BFS
-
YYZ
1 stop22h 20m
Multiple Airlines
Deal found 2/4C$ 820
Fri 29/510:15 p.m.
YYZ
-
BFS
1 stop13h 15m
Multiple Airlines
Wed 10/63:40 p.m.
BFS
-
YYZ
2 stops26h 40m
Multiple Airlines
Deal found 3/4C$ 824
Mon 11/58:35 p.m.
YUL
-
BFS
2 stops18h 40m
Multiple Airlines
Mon 25/56:10 a.m.
BFS
-
YUL
2 stops16h 10m
Multiple Airlines
Deal found 31/3C$ 863
Mon 18/511:50 p.m.
YYZ
-
BHD
1 stop12h 00m
Multiple Airlines
Tue 2/65:20 p.m.
BHD
-
YYZ
1 stop27h 40m
Multiple Airlines
Deal found 1/4C$ 884
Mon 15/611:50 p.m.
YYZ
-
BHD
1 stop12h 00m
Multiple Airlines
Sun 21/68:10 p.m.
BHD
-
YYZ
1 stop24h 50m
Multiple Airlines
Deal found 31/3C$ 892
Sat 6/611:50 p.m.
YYZ
-
BHD
1 stop28h 10m
Multiple Airlines
Sat 13/65:10 p.m.
BHD
-
YYZ
1 stop27h 50m
Multiple Airlines
Deal found 31/3C$ 895
Sun 10/511:00 p.m.
YUL
-
BFS
1 stop14h 25m
Multiple Airlines
Thu 28/512:45 p.m.
BFS
-
YUL
2 stops37h 15m
Multiple Airlines
Deal found 31/3C$ 903

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 5 April 2026.

Round-trip from

C$ 739

One-way from

C$ 344

Popular in

July

Cheapest in

April

Average price

C$ 920
18/5-3/6
  • 18/5-3/6
  • 5 total stops
  • 51h 20m total
  • Ontario to Northern Ireland
Search Deals
19/5
  • 19/5
  • 1 total stop
  • 16h 35m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (C$ 977 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease (C$ 392 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 5 April 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 15/6

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

1 stop16h 00m

Belfast Intl

Sun 21/6

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

1 stop18h 35m

C$ 817

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 13/5

7:15 p.m.-5:05 p.m.

1 stop16h 50m

Belfast Intl

Wed 27/5

5:40 p.m.-11:00 a.m.

1 stop22h 20m

C$ 820

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 31/5

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

1 stop17h 00m

Belfast Intl

Thu 11/6

9:35 p.m.-4:00 p.m.

1 stop23h 25m

C$ 846
Quickest round-trip

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 6/6

7:15 p.m.-8:55 a.m.

1 stop8h 40m

Belfast Intl

Sat 13/6

6:55 a.m.-3:50 p.m.

2 stops13h 55m

C$ 862

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sat 2/5

7:15 p.m.-10:40 p.m.

2 stops22h 25m

Belfast Intl

Sat 9/5

8:15 p.m.-3:50 p.m.

2 stops24h 35m

C$ 870

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 15/6

11:50 p.m.-4:50 p.m.

1 stop12h 00m

Belfast City

Sun 21/6

8:10 p.m.-4:00 p.m.

1 stop24h 50m

C$ 892

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 17/5

7:15 p.m.-5:35 p.m.

1 stop17h 20m

Belfast Intl

Sun 24/5

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

1 stop18h 35m

C$ 894

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Sat 6/6

11:50 p.m.-9:00 a.m.

1 stop28h 10m

Belfast City

Sat 13/6

5:10 p.m.-4:00 p.m.

1 stop27h 50m

C$ 895

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 23/6

11:50 p.m.-3:15 p.m.

1 stop10h 25m

Belfast Intl

Mon 6/7

8:40 a.m.-4:00 p.m.

1 stop12h 20m

C$ 908

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

8:35 p.m.-7:20 p.m.

2 stops17h 45m

Belfast Intl

Fri 19/6

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

1 stop13h 10m

C$ 945

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 56 resultsSorted by cheapest first
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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
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 5 April 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
7,853 reviews
Check prices

Entertainment

6.4

Food

6.4

Boarding

6.9

Overall

6.7

Comfort

6.8

Crew

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2026

NCE - LHR

I was transferred to AA airlines with seating far away from my wif.
British Airways
6.7
Okay
7,853 reviews
British Airways
6.7
Okay
7,853 reviews
Check prices

Entertainment

6.4

Food

6.4

Boarding

6.9

Overall

6.7

Comfort

6.8

Crew

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Mar 2026

NCE - LHR

I was transferred to AA airlines with seating far away from my wif.

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$ 1,549, Delta can have you in Northern Ireland from Region of Ontario in 21h 26m. There are 4752 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 5 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 828AverageC$ 1,236FlexibilityNo 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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