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$436+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheap flight deals from Ontario to Belgium

Keep the following information in mind while searching for Ontario to Belgium flight deals. Data was last updated October 14, 2025.

Round-trip from

$530
(United Airlines)

One-way from

$436
(Air Canada)

Popular in

June

Cheapest in

March

Average price

$717
From Ontario to Belgium
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One-way flight from Ontario to Belgium
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Highest demand for flights based on searches. 19% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 14, 2025.

This United Airlines deal was found by Cheapflights users on 10/14. 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 11/281:29 pmONT - BRU
2 stops34h 26mUnited Airlines
Fri 12/510:00 amBRU - ONT
3 stops45h 49mUnited Airlines
Deal found 10/14$530
This Air Canada deal was found by Cheapflights users on 10/14. 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.
Fri 11/285:05 amONT - BRU
3 stops23h 10mMultiple Airlines
Fri 12/510:00 amBRU - ONT
3 stops45h 49mMultiple Airlines
Deal found 10/14$536
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Thu 11/137:00 amONT - BRU
1 stop16h 55mUnited Airlines
Wed 11/2610:10 amBRU - ONT
1 stop21h 21mUnited Airlines
Deal found 10/14$546
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/126:05 amONT - BRU
2 stops41h 50mUnited Airlines
Sun 11/1610:10 amBRU - ONT
1 stop21h 21mUnited Airlines
Deal found 10/13$553
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/117:00 amONT - BRU
1 stop16h 55mUnited Airlines
Sun 11/2311:55 amBRU - ONT
2 stops19h 56mUnited Airlines
Deal found 10/14$556
This United Airlines deal was found by Cheapflights users on 10/14. 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 10/266:00 amONT - BRU
2 stops23h 15mUnited Airlines
Wed 11/1910:10 amBRU - ONT
1 stop21h 21mUnited Airlines
Deal found 10/14$653
This United Airlines deal was found by Cheapflights users on 10/14. 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 10/267:00 amONT - BRU
2 stops22h 15mUnited Airlines
Fri 11/2110:10 amBRU - ONT
2 stops19h 34mUnited Airlines
Deal found 10/14$657

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 October 14, 2025.
Use the filters below to find and compare flights from Ontario to Belgium that are best for you.

Fly from

Ontario

Fly to

Belgium

Route

Depart

Return

Price

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Thu 11/13

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

Wed 11/26

10:10 am-10:31 pm

1 stop21h 21m

$548

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 11/12

5:05 am-8:55 am

2 stops42h 50m

Brussels Bruxelles-National

Sun 11/16

10:10 am-10:31 pm

1 stop21h 21m

$553

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 10/27

5:05 am-1:15 pm

2 stops24h 10m

Brussels Bruxelles-National

Wed 11/19

10:10 am-10:31 pm

1 stop21h 21m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 10/29

7:00 am-1:15 pm

2 stops22h 15m

Brussels Bruxelles-National

Thu 11/20

10:10 am-10:31 pm

1 stop21h 21m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 11/4

7:00 am-1:15 pm

2 stops21h 15m

Brussels Bruxelles-National

Wed 11/26

11:55 am-10:51 pm

2 stops19h 56m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 11/4

5:05 am-8:55 am

2 stops42h 50m

Brussels Bruxelles-National

Thu 11/20

11:55 am-10:51 pm

2 stops19h 56m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 10/28

5:05 am-1:15 pm

2 stops24h 10m

Brussels Bruxelles-National

Tue 11/25

10:10 am-10:31 pm

1 stop21h 21m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 11/9

7:00 am-1:15 pm

2 stops21h 15m

Brussels Bruxelles-National

Tue 11/25

11:55 am-10:51 pm

2 stops19h 56m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 11/3

5:05 am-1:15 pm

2 stops23h 10m

Brussels Bruxelles-National

Wed 11/26

11:55 am-10:51 pm

2 stops19h 56m

$653

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 1/4

11:59 pm-1:15 pm

2 stops28h 16m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 19 results
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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, March is the cheapest month in which you can book a flight from Ontario to Belgium (average of $444). Flying from Ontario to Belgium in June is currently the most expensive (average of $888). 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.

What is the cheapest time of day to fly from ONT to BE?

Find hourly flight availability from Ontario to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

One of the essential ways to save on airfare from Ontario to Belgium is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 56% on airfare.

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 16h 55m. Fly via United Airlines to get the fastest option. There are 5590 mi between Ontario and Belgium.

  • 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, March is the cheapest month in which you can book a flight from Ontario to Belgium (average of $444). Flying from Ontario to Belgium in June is currently the most expensive (average of $888). 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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