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$473+ 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$633
(United Airlines)

One-way from

$473
(Expedia)

Popular in

June

Cheapest in

March

Average price

$691
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. 20% potential increase in price ($200 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 August 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 August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/13. 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 12/35:05 amONT - BRU
2 stops17h 45mUnited Airlines
Sun 12/710:10 amBRU - ONT
2 stops21h 39mUnited Airlines
Deal found 8/13$656
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 11/21:29 pmONT - BRU
2 stops14h 46mUnited Airlines
Sun 11/1610:00 amBRU - ONT
2 stops21h 31mUnited Airlines
Deal found 8/13$660
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 12/271:00 pmONT - BRU
2 stops15h 15mUnited Airlines
Sat 1/1010:10 amBRU - ONT
1 stop21h 16mUnited Airlines
Deal found 8/14$710
This Delta deal was found by Cheapflights users on 8/12. 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.
Tue 9/27:05 amONT - BRU
1 stop16h 35mDelta
Fri 9/1210:45 amBRU - ONT
1 stop17h 30mDelta
Deal found 8/12$711
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/262:59 pmONT - BRU
2 stops16h 21mBritish Airways
Mon 1/58:45 pmBRU - ONT
2 stops30h 08mBritish Airways
Deal found 8/13$712
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:05 amONT - BRU
2 stops16h 35mDelta
Wed 9/1010:45 amBRU - ONT
1 stop17h 26mDelta
Deal found 8/13$716
This Air Canada deal was found by Cheapflights users on 8/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:00 amONT - BRU
2 stops15h 50mMultiple Airlines
Wed 9/1010:00 amBRU - ONT
2 stops19h 43mMultiple Airlines
Deal found 8/13$718
This Ovago deal was found by Cheapflights users on 8/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:22 pmONT - BRU
2 stops20h 23mBritish Airways
Mon 9/159:15 pmBRU - ONT
2 stops30h 39mBritish Airways
Deal found 8/12$737
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 9/127:00 amONT - BRU
1 stop17h 00mUnited Airlines
Fri 9/1910:00 amBRU - ONT
2 stops45h 30mUnited Airlines
Deal found 8/13$738
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 9/31:15 pmONT - BRU
2 stops16h 20mDelta
Fri 9/1210:45 amBRU - ONT
1 stop17h 30mDelta
Deal found 8/12$756
This Air Canada deal was found by Cheapflights users on 8/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/216:38 pmONT - BRU
2 stops28h 12mMultiple Airlines
Tue 12/210:00 amBRU - ONT
2 stops35h 17mMultiple Airlines
Deal found 8/13$757

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 August 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

Tue 1/13

5:40 am-7:50 am

2 stops17h 10m

Brussels Bruxelles-National

Sat 1/24

10:00 am-10:26 pm

2 stops45h 26m

$633

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 12/3

5:05 am-7:50 am

2 stops17h 45m

Brussels Bruxelles-National

Sun 12/7

10:10 am-10:49 pm

2 stops21h 39m

$656

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 11/3

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

Mon 11/17

10:10 am-6:36 pm

1 stop17h 26m

$656

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 11/2

1:29 pm-1:15 pm

2 stops14h 46m

Brussels Bruxelles-National

Sun 11/16

10:00 am-10:31 pm

2 stops21h 31m

$660

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Fri 1/16

5:40 am-7:50 am

2 stops17h 10m

Brussels Bruxelles-National

Sat 1/24

10:00 am-10:26 pm

2 stops45h 26m

$683

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 12/24

5:03 pm-7:35 pm

2 stops17h 32m

$473

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 8/24

7:00 am-7:45 am

2 stops15h 45m

$493

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 9/9

7:05 am-8:40 am

1 stop16h 35m

$493

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 9/10

5:10 am-8:05 am

2 stops17h 55m

$493

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 9/10

7:00 am-9:00 am

1 stop17h 00m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 13 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, November is the cheapest month in which you can book a flight from Ontario to Belgium (average of $614). Flying from Ontario to Belgium in June is currently the most expensive (average of $1,079). 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 August 14, 2025.

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

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.

  • What are the cheapest airlines to fly from Ontario to Belgium one-way?

    $473 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $493 and $518, respectively.

  • 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, November is the cheapest month in which you can book a flight from Ontario to Belgium (average of $614). Flying from Ontario to Belgium in June is currently the most expensive (average of $1,079). 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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