HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$329+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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.

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 June 12, 2025.

Round-trip from

$604
(Delta)

One-way from

$329
(Trip.com)

Popular in

July

Cheapest in

November

Average price

$1,053
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 ($196 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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 8/57:05 amONT - BRU
1 stop16h 35mDelta
Fri 8/2210:45 amBRU - ONT
1 stop20h 35mDelta
Deal found 6/12$604
This United Airlines deal was found by Cheapflights users on 6/11. 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 12/97:00 amONT - BRU
1 stop16h 55mUnited Airlines
Fri 1/911:15 amBRU - ONT
2 stops20h 11mUnited Airlines
Deal found 6/11$609
This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:05 amONT - BRU
1 stop16h 35mKLM
Sun 8/2410:45 amBRU - ONT
1 stop17h 26mKLM
Deal found 6/12$704
This Gurufare deal was found by Cheapflights users on 6/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:45 pmONT - BRU
2 stops17h 50mBritish Airways
Wed 9/1710:55 amBRU - ONT
2 stops20h 38mBritish Airways
Deal found 6/11$737
This Air Canada deal was found by Cheapflights users on 6/9. 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.
Wed 8/137:00 amONT - BRU
2 stops15h 50mMultiple Airlines
Fri 9/510:00 amBRU - ONT
2 stops19h 43mMultiple Airlines
Deal found 6/9$891
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:22 pmONT - BRU
2 stops22h 13mAmerican Airlines
Sat 9/610:20 amBRU - ONT
2 stops21h 13mAmerican Airlines
Deal found 6/10$1,351
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1610:54 amONT - BRU
2 stops18h 51mIberia
Tue 8/2612:05 pmBRU - ONT
2 stops19h 43mIberia
Deal found 6/10$2,269

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 June 12, 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

Tue 8/5

7:05 am-8:40 am

1 stop16h 35m

Brussels Bruxelles-National

Fri 8/22

10:45 am-10:20 pm

1 stop20h 35m

$604

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 12/9

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

Fri 1/9

11:15 am-10:26 pm

2 stops20h 11m

$609

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 9/8

4:45 pm-7:35 pm

2 stops17h 50m

Brussels Bruxelles-National

Wed 9/17

10:55 am-10:33 pm

2 stops20h 38m

$737

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 8/13

7:00 am-7:50 am

2 stops15h 50m

Brussels Bruxelles-National

Fri 9/5

10:00 am-8:43 pm

2 stops19h 43m

$891

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 8/5

7:05 am-8:40 am

1 stop16h 35m

Brussels Bruxelles-National

Sun 8/10

10:45 am-7:20 pm

1 stop17h 35m

$919

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 9/1

12:22 pm-7:35 pm

2 stops22h 13m

Brussels Bruxelles-National

Sat 9/6

10:20 am-10:33 pm

2 stops21h 13m

$1,351

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Fri 8/29

5:10 am-8:00 am

2 stops17h 50m

Brussels Bruxelles-National

Tue 9/30

10:00 am-8:24 pm

2 stops19h 24m

$3,164

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 8/16

10:50 am-2:45 pm

2 stops18h 55m

Brussels Bruxelles-National

Sat 8/23

12:05 pm-10:48 pm

2 stops19h 43m

$5,684

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 7/23

10:03 am-12:50 pm

2 stops17h 47m

$329

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 7/23

5:05 am-8:00 am

2 stops17h 55m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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, November is the cheapest month in which you can book a flight from Ontario to Brussels (average of $614). Flying from Ontario to Brussels in June is currently the most expensive (average of $1,096). 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 June 12, 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 morning, which can drop the price by up to 6% versus a flight at noon.

Rainfall in Brussels by month

Plan your trip to Brussels by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Brussels ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Brussels when rainfall is around 1.6 in.

Temperature in Brussels by month

Plan your trip to Brussels by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Brussels, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and United Airlines from Ontario to Brussels to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    One-way options have recently been found by users for as low as $493 on United Airlines. Other airlines that offer cheap prices include Delta from $518 and KLM from $543 one-way.

  • 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, November is the cheapest month in which you can book a flight from Ontario to Brussels (average of $614). Flying from Ontario to Brussels in June is currently the most expensive (average of $1,096). 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
Las Vegas to Bruxelles-National flights
Los Angeles to Charleroi Brussels flights
San Jose to Bruxelles-National flights
Oakland to Bruxelles-National flights
Sacramento to Bruxelles-National flights
San Francisco to Charleroi Brussels flights
Long Beach to Bruxelles-National flights
Las Vegas to Charleroi Brussels flights
Santa Barbara to Bruxelles-National flights
San Diego to Charleroi Brussels flights
Los Angeles to Antwerp flights
San Luis Obispo to Bruxelles-National flights
San Francisco to Antwerp flights
Arcata to Bruxelles-National 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.