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Cheap flights from Ontario to Northern Ireland from C$ 330

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
22 May — 29 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 22 April 2026.

Fri 5/610:05 p.m.
YYZ
-
BFS
1 stop18h 45m
Multiple Airlines
Fri 12/65:05 p.m.
BFS
-
YYZ
3 stops33h 40m
Multiple Airlines
Deal found 22/4C$ 715
Mon 1/610:55 p.m.
YYZ
-
BFS
2 stops19h 25m
Multiple Airlines
Tue 16/64:40 p.m.
BFS
-
YYZ
2 stops25h 40m
Multiple Airlines
Deal found 17/4C$ 726
Mon 1/610:55 p.m.
YYZ
-
BFS
2 stops19h 25m
Multiple Airlines
Mon 8/66:50 p.m.
BFS
-
YYZ
2 stops25h 05m
Multiple Airlines
Deal found 18/4C$ 730
Sun 17/59:55 p.m.
YYZ
-
BFS
1 stop15h 55m
Multiple Airlines
Sun 24/57:35 p.m.
BFS
-
YYZ
3 stops31h 10m
Multiple Airlines
Deal found 19/4C$ 773
Mon 18/57:35 a.m.
YYZ
-
BFS
2 stops22h 40m
Multiple Airlines
Tue 26/511:30 p.m.
BFS
-
YYZ
3 stops27h 15m
Multiple Airlines
Deal found 17/4C$ 781
Mon 1/610:10 p.m.
YYZ
-
BHD
1 stop10h 10m
Multiple Airlines
Tue 16/65:20 p.m.
BHD
-
YYZ
2 stops25h 00m
Multiple Airlines
Deal found 17/4C$ 821
Mon 18/56:45 a.m.
YUL
-
BFS
3 stops32h 55m
Multiple Airlines
Mon 25/56:50 p.m.
BFS
-
YUL
3 stops28h 30m
Multiple Airlines
Deal found 18/4C$ 826
Wed 20/57:15 p.m.
YYZ
-
BHD
1 stop14h 15m
Multiple Airlines
Wed 27/56:20 p.m.
BHD
-
YYZ
1 stop21h 40m
Multiple Airlines
Deal found 20/4C$ 836
Sun 17/59:55 p.m.
YYZ
-
BHD
1 stop12h 00m
Multiple Airlines
Sun 24/59:50 a.m.
BHD
-
YYZ
3 stops40h 55m
Multiple Airlines
Deal found 19/4C$ 851
Mon 18/56:45 a.m.
YUL
-
BHD
3 stops30h 15m
Multiple Airlines
Mon 25/56:20 p.m.
BHD
-
YUL
3 stops29h 00m
Multiple Airlines
Deal found 18/4C$ 860
Tue 12/57:15 p.m.
YYZ
-
BHD
1 stop11h 40m
Multiple Airlines
Tue 19/59:50 a.m.
BHD
-
YYZ
1 stop30h 10m
Multiple Airlines
Deal found 17/4C$ 930
Mon 11/57:15 p.m.
YYZ
-
BHD
1 stop11h 40m
Multiple Airlines
Tue 19/55:20 p.m.
BHD
-
YYZ
3 stops33h 25m
Multiple Airlines
Deal found 18/4C$ 939

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 22 April 2026.

Round-trip from

C$ 715

One-way from

C$ 330

Popular in

July

Cheapest in

April

Average price

C$ 901
5/6-12/6
  • 5/6-12/6
  • 4 total stops
  • 52h 25m total
  • Ontario to Northern Ireland
Search Deals
3/6
  • 3/6
  • 1 total stop
  • 18h 05m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (C$ 937 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease (C$ 377 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 22 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 1/6

10:55 p.m.-11:20 p.m.

2 stops19h 25m

Belfast Intl

Tue 16/6

4:40 p.m.-1:20 p.m.

2 stops25h 40m

C$ 726

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Fri 5/6

10:05 p.m.-9:50 p.m.

1 stop18h 45m

Belfast Intl

Fri 12/6

5:05 p.m.-2:00 p.m.

2 stops25h 55m

C$ 775

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 18/5

7:35 a.m.-11:15 a.m.

2 stops22h 40m

Belfast Intl

Tue 26/5

8:15 p.m.-1:20 p.m.

2 stops22h 05m

C$ 782

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 1/6

10:10 p.m.-1:20 p.m.

1 stop10h 10m

Belfast City

Tue 16/6

5:20 p.m.-1:20 p.m.

2 stops25h 00m

C$ 821

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

6:45 a.m.-8:40 p.m.

3 stops32h 55m

Belfast Intl

Mon 25/5

6:50 p.m.-6:20 p.m.

3 stops28h 30m

C$ 826

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 12/5

7:15 p.m.-4:20 p.m.

1 stop16h 05m

Belfast Intl

Tue 19/5

4:40 p.m.-9:45 p.m.

3 stops34h 05m

C$ 827

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Mon 11/5

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

1 stop16h 00m

Belfast Intl

Tue 19/5

9:15 p.m.-11:00 a.m.

1 stop18h 45m

C$ 833

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 17/5

7:15 p.m.-12:20 p.m.

2 stops12h 05m

Belfast Intl

Sun 24/5

7:35 p.m.-9:45 p.m.

3 stops31h 10m

C$ 838

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 16/6

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

1 stop19h 25m

Belfast Intl

Tue 23/6

10:45 p.m.-11:00 a.m.

1 stop17h 15m

C$ 844

TorontoBelfast

YTZ - BFS

YTZBFS

Toronto Island

Thu 4/6

6:55 p.m.-8:35 p.m.

2 stops20h 40m

Belfast Intl

Thu 11/6

9:10 p.m.-9:48 p.m.

2 stops29h 38m

C$ 993

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 55 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 22 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
7,905 reviews
Check prices

Boarding

6.9

Overall

6.7

Food

6.4

Comfort

6.8

Entertainment

6.4

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
7,905 reviews
British Airways
6.7
Okay
7,905 reviews
Check prices

Boarding

6.9

Overall

6.7

Food

6.4

Comfort

6.8

Entertainment

6.4

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$ 1,622, 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.
Pearson Intl to Heathrow flights
Pearson Intl to Gatwick flights
Vancouver Intl to Heathrow flights
Pearson Intl to Stansted flights
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Toronto Island to Heathrow flights
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Vancouver Intl to Gatwick flights
Pearson Intl to Luton flights
Toronto Island to Gatwick flights
Calgary to Heathrow flights
Vancouver Intl to London City flights
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Pearson Intl to Edinburgh flights
Pearson Intl to Manchester flights
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Pierre Elliott Trudeau Intl to Stansted flights
Pierre Elliott Trudeau Intl to London City flights
Halifax to Heathrow flights
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Calgary to Gatwick flights
Pearson Intl to Glasgow Intl flights
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Vancouver Intl to Edinburgh flights
Calgary to London City flights
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Calgary to Stansted flights
Pierre Elliott Trudeau Intl to Southend flights
Calgary to Luton flights
Vancouver Intl to Luton flights
Halifax to Gatwick flights
Edmonton to Heathrow flights
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Edmonton to Gatwick flights
Ottawa to Stansted flights
Vancouver Intl to Manchester flights
Calgary to Edinburgh flights
Halifax to Stansted flights
Halifax to London City flights
Toronto Island to Edinburgh flights
Edmonton to Stansted flights
Edmonton to London City flights
Winnipeg to Heathrow flights
Halifax to Luton flights
Ottawa to Gatwick flights
Vancouver Intl to Glasgow Intl flights
Abbotsford to Gatwick flights
Pearson Intl to Birmingham flights

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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 811AverageC$ 1,201FlexibilityNo 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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