HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belgium

$383+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BRU
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Belgium 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 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 April 23, 2026.

This United Airlines deal was found by Cheapflights users on 4/18. 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 11/85:00 am
ONT
-
BRU
2 stops23h 15m
United Airlines
Thu 11/1210:10 am
BRU
-
ONT
1 stop21h 16m
United Airlines
Deal found 4/18$748
This United Airlines deal was found by Cheapflights users on 4/19. 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 9/167:00 am
ONT
-
BRU
1 stop17h 00m
United Airlines
Wed 9/2310:15 am
BRU
-
ONT
1 stop17h 04m
United Airlines
Deal found 4/19$857
This KLM deal was found by Cheapflights users on 4/19. 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.
Sun 11/2912:00 pm
ONT
-
BRU
1 stop13h 55m
KLM
Sun 12/612:55 pm
BRU
-
ONT
1 stop18h 19m
KLM
Deal found 4/19$861
This British Airways deal was found by Cheapflights users on 4/21. 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.
Sat 12/52:56 pm
ONT
-
BRU
2 stops16h 39m
British Airways
Sun 1/3111:20 am
BRU
-
ONT
2 stops19h 41m
British Airways
Deal found 4/21$869
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/191:30 pm
ONT
-
BRU
2 stops21h 30m
United Airlines
Tue 5/269:55 am
BRU
-
ONT
2 stops45h 56m
United Airlines
Deal found 4/19$894

Find flight deals from Ontario to Belgium

Keep the following information in mind while searching for Ontario to Belgium flight deals. Data was last updated April 23, 2026.

Round-trip from

$857
(United Airlines)

One-way from

$383
(oojo)

Popular in

June

Cheapest in

January

Average price

$641
From Ontario to Belgium
Search Deals
One-way flight from Ontario to Belgium
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($212 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 23, 2026.
Use the filters below to find and compare flights from Ontario to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 9/16

7:00 am-9:00 am

1 stop17h 00m

Brussels Bruxelles-National

Wed 9/23

10:15 am-6:19 pm

1 stop17h 04m

$857

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 9/2

5:00 am-7:10 am

2 stops17h 10m

Brussels Bruxelles-National

Fri 9/11

9:25 am-6:19 pm

2 stops41h 54m

$901
Quickest round-trip

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 9/23

7:00 am-7:40 am

1 stop15h 40m

Brussels Bruxelles-National

Mon 10/5

9:45 am-6:01 pm

1 stop17h 16m

$989

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 8/19

7:00 am-9:00 am

1 stop17h 00m

Brussels Bruxelles-National

Tue 8/25

10:15 am-6:19 pm

1 stop17h 04m

$1,042

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Fri 5/22

5:00 am-7:10 am

2 stops17h 10m

Brussels Bruxelles-National

Wed 5/27

9:55 am-10:51 pm

2 stops45h 56m

$1,096

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Wed 9/16

12:35 pm-3:05 pm

2 stops17h 30m

Brussels Bruxelles-National

Wed 9/23

11:00 am-9:08 pm

2 stops19h 08m

$1,114

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Thu 9/3

7:00 am-9:00 am

1 stop17h 00m

Brussels Bruxelles-National

Mon 9/14

9:55 am-6:19 pm

2 stops17h 24m

$1,114

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 6/7

5:00 am-7:10 am

2 stops17h 10m

Brussels Bruxelles-National

Tue 6/23

12:00 pm-10:46 pm

2 stops19h 46m

$1,175

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Mon 8/24

12:33 pm-2:25 pm

2 stops16h 52m

Brussels Bruxelles-National

Fri 9/4

10:45 am-9:12 pm

2 stops19h 27m

$1,188

OntarioBrussels

ONT - BRU

ONTBRU

Ontario

Sun 6/7

5:00 am-7:10 am

2 stops17h 10m

Brussels Bruxelles-National

Sun 6/14

9:45 am-10:46 pm

2 stops46h 01m

$1,221

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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
No data available for this route at this time. Please check back soon.

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 40m. Fly via United Airlines or Delta 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.

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 Belgium

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Charles de Gaulle flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Charles de Gaulle flights
San Francisco to Leonardo da Vinci/Fiumicino flights
San Francisco to Barcelona-El Prat flights
Los Angeles to Gatwick flights
Los Angeles to Istanbul flights
Los Angeles to Stansted flights
Los Angeles to Madrid flights
Los Angeles to Barcelona-El Prat flights
Los Angeles to London City flights
Los Angeles to Orly flights
San Francisco to Gatwick flights
San Francisco to London City flights
San Francisco to Stansted flights
Los Angeles to Frankfurt flights
Los Angeles to Dublin flights
San Francisco to Istanbul flights
San Francisco to Frankfurt flights
San Francisco to Dublin flights
Los Angeles to Amsterdam flights
Los Angeles to Lisbon flights
Ontario to Heathrow flights
San Francisco to Lisbon flights
Los Angeles to Athens flights
Los Angeles to Zurich flights
San Francisco to Amsterdam flights
San Francisco to Athens flights
San Francisco to Zurich flights
Los Angeles to Luton flights
San Francisco to Madrid flights
Los Angeles to Copenhagen flights
Los Angeles to Malpensa flights
San Diego to Heathrow flights
Los Angeles to Frederic Chopin flights
Oakland to Heathrow flights
Ontario to Leonardo da Vinci/Fiumicino flights
San Francisco to Malpensa flights
San Francisco to Copenhagen flights
Las Vegas to Heathrow 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.
Site
©2026 Cheapflights