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Cheap flights from Northern Ireland to Ontario from C$ 404

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — YYZ
5 Aug — 12 Aug1
1 adult

Cheap flight deals from Northern Ireland to Ontario

Keep the following information in mind while searching for Northern Ireland to Ontario flight deals. Data was last updated 31 July 2025.

Round-trip from

C$ 778

One-way from

C$ 404

Popular in

August

Cheapest in

May

Average price

C$ 1,180
14/9-21/9
  • 14/9-21/9
  • 2 total stops
  • 40h 00m total
  • Northern Ireland to Ontario
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 36h 50m total
  • Northern Ireland to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 239 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 64 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Northern Ireland to Ontario

Cheapest flights from Northern Ireland to Ontario
Explore the most affordable flight options available from Northern Ireland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Sun 14/97:45 a.m.BFS - YYZ
1 stop11h 25mMultiple Airlines
Sun 21/910:15 p.m.YYZ - BFS
1 stop28h 35mMultiple Airlines
Deal found 31/7C$ 778
Thu 4/96:10 a.m.BFS - YUL
1 stop13h 05mMultiple Airlines
Tue 9/911:05 a.m.YUL - BFS
2 stops27h 15mMultiple Airlines
Deal found 30/7C$ 793
Wed 13/812:10 p.m.BHD - YYZ
1 stop27h 50mMultiple Airlines
Wed 20/87:15 p.m.YYZ - BHD
1 stop16h 25mMultiple Airlines
Deal found 30/7C$ 913
Thu 4/97:05 a.m.BHD - YUL
1 stop12h 10mMultiple Airlines
Tue 9/911:05 a.m.YUL - BHD
2 stops21h 40mMultiple Airlines
Deal found 30/7C$ 915
Thu 13/1111:05 a.m.BHD - YUL
1 stop12h 40mBritish Airways
Mon 17/118:40 p.m.YUL - BHD
1 stop12h 35mBritish Airways
Deal found 30/7C$ 944
Wed 17/911:30 a.m.BHD - YYZ
1 stop13h 40mBritish Airways
Sat 27/96:25 p.m.YYZ - BHD
1 stop12h 50mBritish Airways
Deal found 31/7C$ 944
Wed 24/910:00 a.m.BHD - YYZ
1 stop15h 10mAmerican Airlines
Sun 28/910:00 p.m.YYZ - BHD
1 stop14h 40mAmerican Airlines
Deal found 28/7C$ 945
Thu 18/99:35 a.m.BHD - YUL
1 stop15h 40mAmerican Airlines
Mon 22/95:15 p.m.YUL - BHD
2 stops21h 20mAmerican Airlines
Deal found 31/7C$ 1,012
Sun 14/99:55 a.m.BFS - YTZ
2 stops15h 15mMultiple Airlines
Sun 21/96:55 p.m.YTZ - BFS
2 stops20h 25mMultiple Airlines
Deal found 31/7C$ 1,218
Wed 24/910:00 a.m.BHD - YYZ
2 stops16h 30mIberia
Sun 28/910:55 a.m.YYZ - BHD
2 stops19h 35mIberia
Deal found 29/7C$ 1,229
Wed 27/86:40 a.m.BHD - YYZ
2 stops15h 49mVirgin Atlantic
Wed 3/94:35 p.m.YYZ - BHD
1 stop19h 20mVirgin Atlantic
Deal found 30/7C$ 1,348
Wed 27/87:05 a.m.BHD - YTZ
2 stops16h 02mMultiple Airlines
Wed 3/96:55 p.m.YTZ - BHD
2 stops15h 10mMultiple Airlines
Deal found 30/7C$ 1,370

Cheapflights Fare Finder

 
Customize your flight search to find flights from Northern Ireland to Ontario 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 31 July 2025.
Use the filters below to find and compare flights from Northern Ireland to Ontario that are best for you.

Fly from

Northern Ireland

Fly to

Ontario

Route

Depart

Return

Price

BelfastToronto

BFS - YYZ

BFSYYZ

Belfast Intl

Sun 14/9

7:45 a.m.-2:10 p.m.

1 stop11h 25m

Toronto Pearson Intl

Sun 21/9

10:15 p.m.-7:50 a.m.

1 stop28h 35m

C$ 778

BelfastMontreal

BFS - YUL

BFSYUL

Belfast Intl

Thu 4/9

6:10 a.m.-2:15 p.m.

1 stop13h 05m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

11:05 a.m.-7:20 p.m.

2 stops27h 15m

C$ 793

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 13/8

12:10 p.m.-11:00 a.m.

1 stop27h 50m

Toronto Pearson Intl

Wed 20/8

7:15 p.m.-4:40 p.m.

1 stop16h 25m

C$ 913

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 4/9

7:05 a.m.-2:15 p.m.

1 stop12h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

11:05 a.m.-1:45 p.m.

2 stops21h 40m

C$ 915

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 13/11

11:05 a.m.-6:45 p.m.

1 stop12h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 17/11

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

1 stop12h 35m

C$ 944

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 17/9

11:30 a.m.-8:10 p.m.

1 stop13h 40m

Toronto Pearson Intl

Sat 27/9

6:25 p.m.-12:15 p.m.

1 stop12h 50m

C$ 944

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 24/9

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

1 stop15h 10m

Toronto Pearson Intl

Sun 28/9

10:00 p.m.-5:40 p.m.

1 stop14h 40m

C$ 945

BelfastMontreal

BHD - YUL

BHDYUL

Belfast City

Thu 18/9

6:35 a.m.-8:15 p.m.

1 stop18h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

5:15 p.m.-3:40 p.m.

2 stops17h 25m

C$ 1,019

BelfastToronto

BFS - YTZ

BFSYTZ

Belfast Intl

Sun 14/9

9:55 a.m.-8:10 p.m.

2 stops15h 15m

Toronto Island

Sun 21/9

6:55 p.m.-8:20 p.m.

2 stops20h 25m

C$ 1,218

BelfastToronto

BHD - YYZ

BHDYYZ

Belfast City

Wed 24/9

10:00 a.m.-9:30 p.m.

2 stops16h 30m

Toronto Pearson Intl

Sun 28/9

10:55 a.m.-11:30 a.m.

2 stops19h 35m

C$ 1,229

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 19 results
1
2

Best time to book a flight from Northern Ireland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Northern Ireland 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 Northern Ireland to Ontario
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 31 July 2025.
Get a feel of what it's like to fly with Delta,KLM, andVirgin Atlantic from Northern Ireland to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Colin,Sep 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Northern Ireland to Region of Ontario one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as C$ 1,149. Users have also found prices from C$ 1,185 and C$ 2,242 on Aer Lingus and Delta, respectively.

  • Can I find deals for flights from Northern Ireland to Ontario that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Ontario.

  • Can I find deals for business class flights from Northern Ireland to Ontario?

    Yes. Cheapflights offers flight deals from Northern Ireland to Ontario 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 Northern Ireland to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Region of Ontario (average of C$ 167). Flying from Northern Ireland to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 Northern Ireland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Yes! Cheapflights helps users easily find flights from Northern Ireland to Ontario with no change fees.

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