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$375+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Round-trip from

$464
(oojo)

One-way from

$375
(United Airlines)

Popular in

June

Cheapest in

March

Average price

$755
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 ($197 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 November 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 November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/26. 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 12/2411:59 pmONT - BRU
1 stop23h 56mUnited Airlines
Mon 12/2910:10 amBRU - ONT
1 stop21h 15mUnited Airlines
Deal found 11/26$1,115
This United Airlines deal was found by Cheapflights users on 11/26. 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 12/2311:59 pmONT - BRU
1 stop23h 56mUnited Airlines
Mon 12/2910:10 amBRU - ONT
1 stop21h 15mUnited Airlines
Deal found 11/26$1,129
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/201:40 pmONT - BRU
2 stops33h 10mUnited Airlines
Sat 1/1011:15 amBRU - ONT
2 stops19h 43mUnited Airlines
Deal found 11/24$1,221
This United Airlines deal was found by Cheapflights users on 11/26. 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 12/2311:59 pmONT - BRU
1 stop23h 56mUnited Airlines
Wed 12/3110:10 amBRU - ONT
1 stop21h 15mUnited Airlines
Deal found 11/26$1,264
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/125:05 amONT - BRU
2 stops17h 45mUnited Airlines
Mon 12/2210:10 amBRU - ONT
1 stop21h 15mUnited Airlines
Deal found 11/24$1,272
This United Airlines deal was found by Cheapflights users on 11/26. 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 12/231:40 pmONT - BRU
2 stops33h 10mUnited Airlines
Tue 12/3010:00 amBRU - ONT
2 stops45h 25mUnited Airlines
Deal found 11/26$1,278
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/285:05 amONT - BRU
2 stops17h 45mUnited Airlines
Sun 1/410:00 amBRU - ONT
2 stops45h 25mUnited Airlines
Deal found 11/25$1,302
This United Airlines deal was found by Cheapflights users on 11/26. 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 12/2311:59 pmONT - BRU
1 stop23h 56mUnited Airlines
Sun 12/2810:10 amBRU - ONT
1 stop21h 15mUnited Airlines
Deal found 11/26$1,334
This oojo deal was found by Cheapflights users on 11/24. 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.
Thu 11/2712:55 pmONT - BRU
2 stops19h 05mBritish Airways
Mon 12/18:45 pmBRU - ONT
2 stops30h 37mBritish Airways
Deal found 11/24$1,363
This United Airlines deal was found by Cheapflights users on 11/26. 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 12/2511:59 pmONT - BRU
1 stop23h 56mUnited Airlines
Wed 12/3110:10 amBRU - ONT
1 stop21h 15mUnited Airlines
Deal found 11/26$1,366

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 November 26, 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 1/8

4:45 pm-5:00 pm

2 stops15h 15m

Brussels Bruxelles-National

Thu 1/22

10:15 am-10:48 pm

2 stops21h 33m

$489

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Fri 1/9

1:53 pm-8:55 am

2 stops34h 02m

Brussels Bruxelles-National

Fri 1/16

10:00 am-12:47 pm

2 stops35h 47m

$503

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Fri 1/9

6:00 am-7:50 am

2 stops16h 50m

Brussels Bruxelles-National

Fri 1/16

10:00 am-12:17 pm

3 stops35h 17m

$507

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 1/28

1:24 pm-1:15 pm

2 stops14h 51m

Brussels Bruxelles-National

Sun 2/1

9:40 am-11:18 am

2 stops34h 38m

$521

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 4/15

5:02 pm-9:55 am

2 stops31h 53m

Brussels Bruxelles-National

Tue 4/28

10:55 am-9:56 pm

2 stops20h 01m

$1,123

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 12/23

11:59 pm-8:55 am

1 stop23h 56m

Brussels Bruxelles-National

Mon 12/29

10:10 am-10:25 pm

1 stop21h 15m

$1,129

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 5/17

5:00 am-8:05 am

2 stops18h 05m

Brussels Bruxelles-National

Sun 5/24

10:00 am-10:26 pm

2 stops45h 26m

$1,153

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 4/4

5:02 pm-6:00 pm

2 stops39h 58m

Brussels Bruxelles-National

Sun 4/12

10:40 am-9:56 pm

2 stops20h 16m

$1,214

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 12/20

1:40 pm-7:50 am

2 stops33h 10m

Brussels Bruxelles-National

Sat 1/10

11:15 am-9:58 pm

2 stops19h 43m

$1,221

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 12/23

11:59 pm-8:55 am

1 stop23h 56m

Brussels Bruxelles-National

Wed 12/31

10:10 am-10:25 pm

1 stop21h 15m

$1,264

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 23 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 $443). Flying from Ontario to Belgium in June is currently the most expensive (average of $889). 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 15m. Fly via British Airways or United Airlines 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, March is the cheapest month in which you can book a flight from Ontario to Belgium (average of $443). Flying from Ontario to Belgium in June is currently the most expensive (average of $889). 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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