Find flights
When to book
Airlines
FAQs

Cheap flights from Ontario to Northern Ireland from C$ 315

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BFS
23 Aug — 30 Aug1
1 adult

Cheap 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 18 August 2025.

Round-trip from

C$ 797

One-way from

C$ 315

Popular in

July

Cheapest in

October

Average price

C$ 1,477
1/10-8/10
  • 1/10-8/10
  • 4 total stops
  • 61h 30m total
  • Ontario to Northern Ireland
Search Deals
30/9
  • 30/9
  • 1 total stop
  • 11h 20m total
  • Ontario to Northern Ireland
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (C$ 1,016 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease (C$ 363 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Ontario to Northern Ireland

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 18 August 2025.

Wed 1/1010:15 p.m.YYZ - BFS
1 stop15h 20mMultiple Airlines
Wed 8/109:05 p.m.BFS - YYZ
3 stops46h 10mMultiple Airlines
Deal found 17/8C$ 797
Wed 1/1010:15 p.m.YYZ - BFS
1 stop18h 00mMultiple Airlines
Wed 15/106:10 a.m.BFS - YYZ
2 stops16h 00mMultiple Airlines
Deal found 18/8C$ 828
Tue 30/910:45 p.m.YYZ - BFS
1 stop27h 45mMultiple Airlines
Tue 7/106:15 a.m.BFS - YYZ
1 stop14h 25mMultiple Airlines
Deal found 16/8C$ 855
Wed 1/1010:15 p.m.YYZ - BHD
1 stop14h 25mMultiple Airlines
Wed 15/107:05 a.m.BHD - YYZ
2 stops15h 05mMultiple Airlines
Deal found 18/8C$ 875
Wed 19/1110:35 a.m.YUL - BHD
2 stops22h 00mMultiple Airlines
Sun 30/117:20 a.m.BHD - YUL
2 stops16h 05mMultiple Airlines
Deal found 17/8C$ 891
Mon 6/106:29 p.m.YYZ - BHD
2 stops16h 11mBritish Airways
Mon 13/106:30 p.m.BHD - YYZ
1 stop26h 30mBritish Airways
Deal found 17/8C$ 945
Tue 18/118:40 p.m.YUL - BHD
1 stop13h 10mBritish Airways
Sun 30/115:35 p.m.BHD - YUL
1 stop30h 10mBritish Airways
Deal found 18/8C$ 958
Tue 18/117:40 p.m.YUL - BFS
1 stop21h 00mMultiple Airlines
Sun 30/113:45 p.m.BFS - YUL
1 stop25h 25mMultiple Airlines
Deal found 17/8C$ 992
Fri 12/98:50 p.m.YYZ - BHD
2 stops18h 35mMultiple Airlines
Wed 24/97:05 a.m.BHD - YYZ
2 stops19h 50mMultiple Airlines
Deal found 17/8C$ 1,027
Sat 13/911:00 p.m.YYZ - BHD
2 stops16h 25mMultiple Airlines
Sat 20/97:00 a.m.BHD - YYZ
2 stops41h 10mMultiple Airlines
Deal found 16/8C$ 1,047
Mon 29/94:15 p.m.YYZ - BHD
2 stops15h 40mAmerican Airlines
Mon 6/109:50 a.m.BHD - YYZ
2 stops16h 40mAmerican Airlines
Deal found 17/8C$ 1,049
Mon 8/97:30 p.m.YYZ - BHD
2 stops13h 15mMultiple Airlines
Mon 22/97:55 a.m.BHD - YYZ
1 stop32h 05mMultiple Airlines
Deal found 18/8C$ 1,067

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 18 August 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

Wed 1/10

10:15 p.m.-6:35 p.m.

1 stop15h 20m

Belfast Intl

Wed 8/10

9:05 p.m.-2:15 p.m.

3 stops46h 10m

C$ 797

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Wed 1/10

10:15 p.m.-9:15 p.m.

1 stop18h 00m

Belfast Intl

Wed 15/10

6:10 a.m.-5:10 p.m.

2 stops16h 00m

C$ 828

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Tue 30/9

10:45 p.m.-7:30 a.m.

1 stop27h 45m

Belfast Intl

Tue 7/10

6:15 a.m.-3:40 p.m.

1 stop14h 25m

C$ 855

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/10

10:15 p.m.-5:40 p.m.

1 stop14h 25m

Belfast City

Wed 15/10

7:05 a.m.-5:10 p.m.

2 stops15h 05m

C$ 875

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

10:35 a.m.-1:35 p.m.

2 stops22h 00m

Belfast City

Sun 30/11

7:20 a.m.-6:25 p.m.

2 stops16h 05m

C$ 891

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 6/10

3:10 p.m.-12:55 p.m.

2 stops16h 45m

Belfast City

Mon 13/10

7:30 p.m.-4:00 p.m.

1 stop25h 30m

C$ 945

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Wed 1/10

6:05 p.m.-1:30 p.m.

1 stop14h 25m

Belfast City

Wed 15/10

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

1 stop13h 40m

C$ 945

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Tue 18/11

8:40 p.m.-11:30 a.m.

1 stop9h 50m

Belfast City

Sun 30/11

3:10 p.m.-6:45 p.m.

1 stop32h 35m

C$ 958

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

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

1 stop12h 35m

Belfast City

Sun 30/11

8:25 p.m.-6:45 p.m.

1 stop27h 20m

C$ 958

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Tue 18/11

7:40 p.m.-9:40 p.m.

1 stop21h 00m

Belfast Intl

Sun 30/11

3:45 p.m.-12:10 p.m.

1 stop25h 25m

C$ 992

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/8

Showing 1-10 of 41 results
1
2
3
...
5

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 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 18 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Northern Ireland as you normally would.

How much does it cost to fly round-trip from Region of Ontario to Northern Ireland?

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 18 August 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
7,277 reviews
Check prices

Entertainment

6.4

Food

6.3

Comfort

6.7

Boarding

6.9

Crew

7.6

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

ACC - LGW

The flight was excellent , the crew were friendly and efficient , the entertainment on screen made a long (although not a long haul flight) very pleasing the meals and wine and fruit juice were very satisfying all in all a great experience
British Airways
6.7
Okay
7,277 reviews
British Airways
6.7
Okay
7,277 reviews
Check prices

Entertainment

6.4

Food

6.3

Comfort

6.7

Boarding

6.9

Crew

7.6

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

ACC - LGW

The flight was excellent , the crew were friendly and efficient , the entertainment on screen made a long (although not a long haul flight) very pleasing the meals and wine and fruit juice were very satisfying all in all a great experience

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$ 945, British Airways can have you in Northern Ireland from Region of Ontario in 16h 45m. There are 5237 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Vancouver Intl to Heathrow flights
Pearson Intl to Gatwick flights
Pearson Intl to London City flights
Pierre Elliott Trudeau Intl to Heathrow flights
Toronto Island to Heathrow flights
Vancouver Intl to Gatwick flights
Pearson Intl to Stansted flights
Pearson Intl to Luton flights
Vancouver Intl to London City flights
Calgary to Heathrow flights
Toronto Island to Gatwick flights
Pierre Elliott Trudeau Intl to Gatwick flights
Halifax to Heathrow flights
Pearson Intl to Edinburgh flights
Pierre Elliott Trudeau Intl to London City flights
Abbotsford to Heathrow flights
Ottawa to Heathrow flights
Pearson Intl to Manchester flights
Pearson Intl to Glasgow Intl flights
Calgary to Gatwick flights
Pierre Elliott Trudeau Intl to Luton flights
Vancouver Intl to Edinburgh flights
Pierre Elliott Trudeau Intl to Stansted flights
Vancouver Intl to Luton flights
Calgary to London City flights
Winnipeg to Heathrow flights
Ottawa to Gatwick flights
Winnipeg to Gatwick flights
Pierre Elliott Trudeau Intl to Edinburgh flights
Halifax to Gatwick flights
Pearson Intl to Birmingham flights
Calgary to Luton flights
Vancouver Intl to Stansted flights
Abbotsford to Gatwick flights
Toronto Island to Edinburgh flights
Ottawa to London City flights
Winnipeg to London City flights
Edmonton to Heathrow flights
Halifax to London City flights
Toronto Island to Manchester flights
Pierre Elliott Trudeau Intl to Southend flights
Vancouver Intl to Birmingham flights
Abbotsford to Edinburgh flights
Hamilton to Heathrow flights
Kelowna to Heathrow flights
Victoria to Heathrow flights
Vancouver Intl to Glasgow Intl flights
Calgary to Stansted 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 18 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 825AverageC$ 1,269FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.