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$315+ Cheap flights from Ontario (ONT) to Belgium

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Ontario to Belgium

Cheapest flights from Ontario to Belgium
Explore the most affordable flight options available from Ontario to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:00 am
ONT
-
BRU
2 stops18h 05m
United Airlines
Thu 12/1010:10 am
BRU
-
ONT
2 stops19h 10m
United Airlines
Deal found 3/8$605
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
ONT
-
BRU
1 stop17h 00m
United Airlines
Tue 4/289:55 am
BRU
-
ONT
2 stops45h 36m
United Airlines
Deal found 3/7$635
This Finnair deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:59 pm
ONT
-
BRU
2 stops37h 36m
Multiple Airlines
Mon 4/277:05 pm
BRU
-
ONT
2 stops34h 49m
Multiple Airlines
Deal found 3/6$662
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:05 am
ONT
-
BRU
2 stops22h 10m
United Airlines
Tue 4/219:55 am
BRU
-
ONT
2 stops45h 36m
United Airlines
Deal found 3/8$681
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
ONT
-
BRU
1 stop17h 00m
United Airlines
Thu 9/2410:15 am
BRU
-
ONT
1 stop21h 11m
United Airlines
Deal found 3/6$707
This oojo deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:52 pm
ONT
-
BRU
2 stops18h 33m
British Airways
Sun 5/108:40 pm
BRU
-
ONT
2 stops34h 19m
British Airways
Deal found 3/9$753
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
ONT
-
BRU
1 stop15h 40m
Delta
Thu 9/179:45 am
BRU
-
ONT
1 stop17h 16m
Delta
Deal found 3/10$757
This British Airways deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:59 pm
ONT
-
BRU
2 stops17h 01m
British Airways
Mon 11/911:50 am
BRU
-
ONT
2 stops19h 09m
British Airways
Deal found 3/10$768
This Air Canada deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 am
ONT
-
BRU
2 stops16h 50m
Multiple Airlines
Sat 5/99:40 am
BRU
-
ONT
2 stops17h 21m
Multiple Airlines
Deal found 3/9$771

Find flight deals from Ontario to Belgium

Keep the following information in mind while searching for Ontario to Belgium flight deals. Data was last updated March 11, 2026.

Round-trip from

$635
(United Airlines)

One-way from

$315
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$712
From Ontario to Belgium
Search Deals
One-way flight from Ontario to Belgium
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Belgium 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 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Ontario to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 4/20

11:59 pm-10:35 pm

2 stops37h 36m

Brussels Bruxelles-National

Mon 4/27

7:05 pm-8:54 pm

2 stops34h 49m

$662

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Fri 4/17

7:00 am-9:00 am

1 stop17h 00m

Brussels Bruxelles-National

Tue 4/21

9:55 am-10:31 pm

2 stops45h 36m

$685

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 9/1

7:00 am-9:00 am

1 stop17h 00m

Brussels Bruxelles-National

Thu 9/24

10:15 am-10:26 pm

1 stop21h 11m

$707
Quickest round-trip

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 9/6

7:00 am-7:40 am

1 stop15h 40m

Brussels Bruxelles-National

Fri 9/18

9:45 am-6:01 pm

1 stop17h 16m

$757

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 9/6

7:00 am-7:40 am

1 stop15h 40m

Brussels Bruxelles-National

Thu 9/17

9:45 am-6:01 pm

1 stop17h 16m

$757

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 4/27

7:05 am-7:40 am

1 stop15h 35m

Brussels Bruxelles-National

Mon 5/25

9:45 am-6:36 pm

1 stop17h 51m

$821

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 4/20

7:05 am-7:40 am

1 stop15h 35m

Brussels Bruxelles-National

Mon 4/27

6:20 am-11:44 pm

2 stops26h 24m

$874

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Thu 8/20

7:00 am-9:00 am

1 stop17h 00m

Brussels Bruxelles-National

Thu 9/3

10:15 am-6:19 pm

1 stop17h 04m

$892

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 4/18

4:52 pm-7:55 pm

2 stops18h 03m

Brussels Bruxelles-National

Fri 5/1

10:45 am-9:59 pm

2 stops20h 14m

$915

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 7/25

10:59 pm-7:40 am

1 stop23h 41m

Brussels Bruxelles-National

Wed 8/5

9:45 am-10:09 pm

1 stop21h 24m

$972

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Belgium

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

What is the cheapest month to book a flight from Ontario to Belgium?

Currently, January is the cheapest month in which you can book a flight from Ontario to Belgium (average of $450). Flying from Ontario to Belgium in June is currently the most expensive (average of $890). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Belgium?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Belgium from Ontario.

  • How long is the flight from Ontario to Belgium?

    There are many flights that can get you from Ontario to Belgium in 15h 40m. Fly via United Airlines or Delta to get the fastest option. There are 5590 mi between Ontario and Belgium. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Belgium 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 Ontario to Belgium?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Belgium (average of $450). Flying from Ontario to Belgium in June is currently the most expensive (average of $890). 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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