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Cheap flights from Ontario to Belfast from C$ 321

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BHD
5 Aug — 12 Aug1
1 adult

Cheap flight deals from Ontario to Belfast

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

Round-trip from

C$ 764

One-way from

C$ 346

Popular in

July

Cheapest in

October

Average price

C$ 4,230
7/9-16/9
  • 7/9-16/9
  • 3 total stops
  • 36h 25m total
  • Ontario to Belfast
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13/9
  • 13/9
  • 2 total stops
  • 40h 35m total
  • Ontario to Belfast
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (C$ 965 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease (C$ 358 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ontario to Belfast

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

Sun 7/910:15 p.m.YYZ - BFS
1 stop12h 40mMultiple Airlines
Tue 16/97:55 p.m.BFS - YYZ
2 stops23h 45mMultiple Airlines
Deal found 30/7C$ 764
Mon 13/1010:15 p.m.YYZ - BHD
1 stop14h 25mMultiple Airlines
Sun 19/107:05 a.m.BHD - YYZ
2 stops14h 45mMultiple Airlines
Deal found 30/7C$ 859
Thu 23/1010:05 p.m.YUL - BFS
1 stop13h 20mMultiple Airlines
Sat 1/119:40 a.m.BFS - YUL
1 stop15h 20mMultiple Airlines
Deal found 30/7C$ 876
Mon 13/1010:00 p.m.YYZ - BHD
1 stop14h 30mAmerican Airlines
Tue 21/109:35 a.m.BHD - YYZ
1 stop15h 35mAmerican Airlines
Deal found 30/7C$ 877
Mon 6/1010:00 p.m.YYZ - BHD
1 stop12h 40mBritish Airways
Mon 13/101:50 p.m.BHD - YYZ
1 stop11h 20mBritish Airways
Deal found 29/7C$ 888
Wed 19/112:30 p.m.YUL - BHD
2 stops18h 05mMultiple Airlines
Sun 30/117:20 a.m.BHD - YUL
2 stops16h 05mMultiple Airlines
Deal found 31/7C$ 942
Wed 19/118:40 p.m.YUL - BHD
1 stop12h 35mBritish Airways
Sun 30/115:35 p.m.BHD - YUL
1 stop30h 10mBritish Airways
Deal found 31/7C$ 955
Mon 20/106:50 p.m.YUL - BHD
1 stop21h 25mDelta
Mon 3/115:20 p.m.BHD - YUL
2 stops48h 34mDelta
Deal found 30/7C$ 1,067
Sat 23/85:55 a.m.YOW - BFS
3 stops24h 05mMultiple Airlines
Sun 14/94:20 p.m.BFS - YOW
3 stops37h 02mMultiple Airlines
Deal found 31/7C$ 1,110
Wed 19/117:05 p.m.YUL - BHD
2 stops16h 45mKLM
Sun 30/115:20 p.m.BHD - YUL
1 stop29h 00mKLM
Deal found 31/7C$ 1,142
Sat 23/810:00 a.m.YOW - BHD
2 stops30h 10mMultiple Airlines
Sun 14/97:05 a.m.BHD - YOW
3 stops22h 17mMultiple Airlines
Deal found 31/7C$ 1,252
Fri 19/129:55 a.m.YUL - BHD
2 stops19h 35mAmerican Airlines
Fri 2/18:45 a.m.BHD - YUL
1 stop15h 00mAmerican Airlines
Deal found 31/7C$ 1,789

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Belfast 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 Ontario to Belfast that are best for you.

Fly from

Ontario

Fly to

Belfast

Route

Depart

Return

Price

TorontoBelfast

YYZ - BFS

YYZBFS

Toronto Pearson Intl

Sun 7/9

10:15 p.m.-3:55 p.m.

1 stop12h 40m

Belfast Intl

Tue 16/9

7:55 p.m.-2:40 p.m.

2 stops23h 45m

C$ 764

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 13/10

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

1 stop14h 25m

Belfast City

Sun 19/10

7:05 a.m.-4:50 p.m.

2 stops14h 45m

C$ 859

MontrealBelfast

YUL - BFS

YULBFS

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

10:05 p.m.-4:25 p.m.

1 stop13h 20m

Belfast Intl

Sat 1/11

9:40 a.m.-9:00 p.m.

1 stop15h 20m

C$ 876

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 13/10

10:00 p.m.-5:30 p.m.

1 stop14h 30m

Belfast City

Tue 21/10

9:35 a.m.-8:10 p.m.

1 stop15h 35m

C$ 877

TorontoBelfast

YYZ - BHD

YYZBHD

Toronto Pearson Intl

Mon 6/10

10:00 p.m.-3:40 p.m.

1 stop12h 40m

Belfast City

Mon 13/10

1:50 p.m.-8:10 p.m.

1 stop11h 20m

C$ 888

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

2:30 p.m.-1:35 p.m.

2 stops18h 05m

Belfast City

Sun 30/11

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

2 stops16h 05m

C$ 942

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

5:35 p.m.-6:45 p.m.

1 stop30h 10m

C$ 955

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Mon 20/10

6:50 p.m.-9:15 p.m.

1 stop21h 25m

Belfast City

Mon 3/11

5:20 p.m.-12:54 p.m.

2 stops48h 34m

C$ 1,067

OttawaBelfast

YOW - BFS

YOWBFS

Ottawa

Sat 23/8

5:55 a.m.-11:00 a.m.

3 stops24h 05m

Belfast Intl

Sun 14/9

4:20 p.m.-12:22 a.m.

3 stops37h 02m

C$ 1,110

MontrealBelfast

YUL - BHD

YULBHD

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

7:05 p.m.-4:50 p.m.

2 stops16h 45m

Belfast City

Sun 30/11

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

1 stop29h 00m

C$ 1,142

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 23 results
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Best time to book a flight from Ontario to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast

What is the cheapest time of day to fly from ON to BFS?

Find hourly flight availability from Ontario to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 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 Belfast as you normally would.

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

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 31 July 2025.
Get a feel of what it's like to fly with Delta,KLM, andAmerican Airlines from Ontario to Belfast by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
7,222 reviews
Delta
8.0
Very good
7,981 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Belfast. 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 Region of Ontario to Belfast one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as C$ 742. However, be on the lookout for offers from British Airways and Aer Lingus, as they are both options that can get you from Region of Ontario to Belfast for a low price.

  • What are the most popular routes from Region of Ontario to Belfast?

    The most popular flight routes from Region of Ontario to Belfast are Toronto Pearson Intl - Belfast Intl, Toronto Pearson Intl - Belfast City and Montreal Pierre Elliott Trudeau Intl - Belfast Intl.

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

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

  • How can I find direct flights from Ontario to Belfast?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Belfast 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

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Top airline flying from Ontario to Belfast

Discover the top airline that operate flights from Ontario to Belfast. 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 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 826AverageC$ 1,287FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Belfast?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Belfast?

Cheapflights helps you find that perfect flight to Belfast from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Belfast with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Belfast flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Belfast become cheaper?

Yes! Start tracking prices for Ontario to Belfast flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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