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$320+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Round-trip from

$712
(United Airlines)

One-way from

$320
(Trip.com)

Popular in

July

Cheapest in

March

Average price

$905
From Ontario to Brussels
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One-way flight from Ontario to Brussels
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Highest demand for flights based on searches. 18% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/30. 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 10/56:38 pmONT - BRU
2 stops52h 27mUnited Airlines
Wed 10/1510:00 amBRU - ONT
2 stops45h 30mUnited Airlines
Deal found 4/30$667
This Air Canada deal was found by Cheapflights users on 4/30. 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 8/87:00 amONT - BRU
2 stops16h 00mMultiple Airlines
Sat 8/3010:00 amBRU - ONT
2 stops19h 33mMultiple Airlines
Deal found 4/30$794
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Tue 5/205:05 amONT - BRU
2 stops17h 45mAir Canada
Tue 6/109:40 amBRU - ONT
2 stops35h 51mAir Canada
Deal found 4/29$804
This Delta deal was found by Cheapflights users on 4/30. 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.
Mon 9/2910:59 pmONT - BRU
1 stop24h 41mDelta
Wed 10/810:45 amBRU - ONT
1 stop17h 57mDelta
Deal found 4/30$821
This British Airways deal was found by Cheapflights users on 4/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/122:44 pmONT - BRU
2 stops19h 51mBritish Airways
Wed 5/2110:55 amBRU - ONT
2 stops21h 48mBritish Airways
Deal found 4/30$1,198
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Thu 6/1212:55 pmONT - BRU
2 stops20h 55mAmerican Airlines
Wed 6/2510:20 amBRU - ONT
2 stops21h 42mAmerican Airlines
Deal found 4/30$1,424
This KLM deal was found by Cheapflights users on 4/29. 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.
Sat 6/147:05 amONT - BRU
1 stop16h 35mKLM
Sun 6/2210:45 amBRU - ONT
1 stop18h 09mKLM
Deal found 4/29$1,782
This oojo deal was found by Cheapflights users on 4/30. 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.
Mon 5/1912:45 pmONT - BRU
2 stops24h 45mIberia
Thu 5/227:05 amBRU - ONT
2 stops23h 53mIberia
Deal found 4/30$10,356

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 May 1, 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

Sun 10/5

6:38 pm-8:05 am

2 stops52h 27m

Brussels Bruxelles-National

Wed 10/15

10:00 am-10:30 pm

2 stops45h 30m

$712

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Tue 5/20

5:05 am-7:50 am

2 stops17h 45m

Brussels Bruxelles-National

Tue 6/10

9:40 am-12:31 pm

2 stops35h 51m

$804

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 9/29

10:59 pm-8:40 am

1 stop24h 41m

Brussels Bruxelles-National

Wed 10/8

10:45 am-7:42 pm

1 stop17h 57m

$821

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 5/11

4:35 pm-6:00 pm

2 stops16h 25m

Brussels Bruxelles-National

Fri 6/6

12:05 pm-11:59 pm

2 stops20h 54m

$1,085

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 5/12

2:44 pm-7:35 pm

2 stops19h 51m

Brussels Bruxelles-National

Wed 5/21

10:55 am-11:43 pm

2 stops21h 48m

$1,198

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Thu 6/12

12:55 pm-6:50 pm

2 stops20h 55m

Brussels Bruxelles-National

Wed 6/25

10:20 am-11:02 pm

2 stops21h 42m

$1,424

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sat 6/14

7:05 am-8:40 am

1 stop16h 35m

Brussels Bruxelles-National

Sun 6/22

10:45 am-7:54 pm

1 stop18h 09m

$1,782

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 7/21

10:03 am-12:50 pm

2 stops17h 47m

$320

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 7/21

7:00 am-9:00 am

1 stop17h 00m

$488

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 5/11

5:05 am-8:05 am

2 stops42h 00m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 12 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 $1,127). 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 May 1, 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 May 1, 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
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7.0
Good
9,252 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

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 flying from Ontario to Brussels round-trip?

    Currently priced at $712, United Airlines will fly you from Ontario to Brussels and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Delta - these airlines can fly you to your destination from $804 and $821, respectively.

  • 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 $488 on United Airlines. Other airlines that offer cheap prices include Air Canada from $493 and Delta from $682 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 $1,127). 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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