HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$436+ Cheap flights from Ontario (ONT) to Brussels

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 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Brussels with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Ontario to Brussels

Cheapest flights from Ontario to Brussels
Explore the most affordable flight options available from Ontario to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 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.
Sun 10/267:00 amONT - BRU
2 stops22h 15mUnited Airlines
Thu 11/2011:55 amBRU - ONT
2 stops19h 56mUnited 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
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.
Sat 11/86:38 pmONT - BRU
2 stops33h 37mUnited Airlines
Tue 11/2510:10 amBRU - ONT
1 stop21h 21mUnited Airlines
Deal found 10/14$658

Cheap flight deals from Ontario to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 16, 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 Brussels
Search Deals
One-way flight from Ontario to Brussels
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Brussels 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 16, 2025.
Use the filters below to find and compare flights from Ontario to Brussels that are best for you.

Fly from

Ontario

Fly to

Brussels

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

$546

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 11/12

6:05 am-8:55 am

2 stops41h 50m

Brussels Bruxelles-National

Sun 11/16

10:10 am-10:31 pm

1 stop21h 21m

$553

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 11/11

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

Sun 11/23

10:10 am-10:31 pm

1 stop21h 21m

$556

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 3/4

1:00 pm-1:15 pm

2 stops15h 15m

Brussels Bruxelles-National

Tue 3/10

10:10 am-10:15 pm

1 stop20h 05m

$603

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

Sat 1/3

11:59 pm-8:55 am

2 stops47h 56m

$440

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 1/10

5:05 am-1:15 pm

2 stops23h 10m

$440

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 1/4

11:59 pm-1:15 pm

2 stops28h 16m

$440

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Thu 1/8

1:20 pm-1:15 pm

2 stops14h 55m

$440

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 11/24

5:05 am-1:15 pm

2 stops23h 10m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 14 results
1
2

Best time to book a flight from Ontario to Brussels

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

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

Currently, March is the cheapest month in which you can book a flight from Ontario to Brussels (average of $444). Flying from Ontario to Brussels 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 BRU?

Find hourly flight availability from Ontario to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

When flying from Ontario to Brussels, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 56% versus a flight at noon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Brussels. 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 Brussels?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to Brussels. On average, Ontario has 0 outbound flights to Brussels per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Ontario to Brussels?

    There are many flights that can get you from Ontario to Brussels in 16h 55m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 5590 mi.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Ontario to Brussels (average of $444). Flying from Ontario to Brussels 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Bruxelles-National flights
San Francisco to Bruxelles-National flights
Ontario to Bruxelles-National flights
Santa Ana to Bruxelles-National flights
San Diego to Bruxelles-National flights
Los Angeles to Charleroi Brussels flights
San Jose to Bruxelles-National flights
San Francisco to Charleroi Brussels flights
Oakland to Bruxelles-National flights
Long Beach to Bruxelles-National flights
Las Vegas to Bruxelles-National flights
Sacramento to Bruxelles-National flights
Santa Barbara to Bruxelles-National flights
Arcata to Bruxelles-National flights
San Luis Obispo to Bruxelles-National flights
Los Angeles to Antwerp flights
Las Vegas to Charleroi Brussels flights
San Diego to Charleroi Brussels flights
San Francisco to Antwerp flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.