Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

ONT - BRU

Find cheap flights from Ontario to Brussels from $659

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Brussels departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to Brussels

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Brussels, as well as popular online travel agencies
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Ontario to Brussels (ONT-BRU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Brussels that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:15 am - 7:15 amONT-BRU
17h 00m2 stops
12:00 pm - 8:53 pmBRU-ONT
17h 53m2 stops
$744United Airlines
Find Deal
Tue, May 7 - Tue, May 14
8:41 am - 10:05 amONT-BRU
16h 24m2 stops
11:05 am - 11:26 pmBRU-ONT
21h 21m2 stops
$783British Airways
Find Deal
Mon, Sep 16 - Tue, Sep 24
12:45 pm - 2:15 pmONT-BRU
16h 30m2 stops
11:05 am - 9:42 pmBRU-ONT
19h 37m2 stops
$821British Airways
Find Deal
Sun, Sep 1 - Wed, Sep 18
12:45 pm - 2:05 pmONT-BRU
16h 20m2 stops
11:05 am - 9:42 pmBRU-ONT
19h 37m2 stops
$822British Airways
Find Deal
Wed, Oct 2 - Wed, Oct 9
6:00 am - 8:45 amONT-BRU
17h 45m2 stops
10:45 am - 11:01 amBRU-ONT
33h 16m2 stops
$839Delta
Find Deal
Tue, May 21 - Wed, Jun 19
6:00 am - 6:20 amONT-BRU
39h 20m3 stops
10:00 am - 11:04 pmBRU-ONT
22h 04m2 stops
Tue, May 7 - Tue, May 14
8:10 am - 8:15 pmONT-BRU
27h 05m2 stops
7:05 am - 11:26 pmBRU-ONT
25h 21m2 stops
$1,049American Airlines
Find Deal
Tue, Jun 25 - Tue, Aug 27
11:59 pm - 2:20 pmONT-BRU
29h 21m2 stops
3:05 pm - 10:00 pmBRU-ONT
39h 55m2 stops
$1,056American Airlines
Find Deal
Mon, Jul 29 - Mon, Aug 12
5:45 am - 8:45 amONT-BRU
18h 00m2 stops
10:40 am - 7:42 pmBRU-ONT
18h 02m2 stops
$1,114KLM
Find Deal
Tue, May 21 - Wed, Jun 19
5:15 am - 7:45 amONT-BRU
17h 30m2 stops
10:00 am - 12:33 pmBRU-ONT
35h 33m2 stops
$1,241
Find Deal
Sun, Jun 23 - Sun, Jul 14

Flights from Ontario to Brussels - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Brussels to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Brussels Bruxelles-National Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Brussels Bruxelles-National Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Brussels Bruxelles-National Airport is November, where tickets cost $707 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,610 and $1,562 respectively.

How far in advance should I book a flight from Ontario to Brussels Bruxelles-National Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Brussels Bruxelles-National Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Brussels Bruxelles-National Airport, you should book around 5 days before departure. For the absolute cheapest price, our data suggests you should book 70 days before departure.

Which airlines provide the cheapest flights from Ontario to Brussels?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Brussels from Ontario were found on United Airlines ($659) and Air Canada ($789), and the lowest round-trip tickets were found on United Airlines ($744) and British Airways ($783).

Good to know

Cheapest flight

$659
Flight from Ontario to Brussels

When to book flights from Ontario to Brussels

Are your dates flexible? Find out the best times to travel from Ontario to Brussels based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Brussels flights

  • What is the cheapest flight from Ontario to Brussels Bruxelles-National Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Brussels Bruxelles-National Airport was $659 for a one-way ticket and $744 for a round-trip.

  • Do I need a passport to fly between Ontario and Brussels?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Ontario and on arrival in Brussels.

  • Which airports will I be using when flying from Ontario to Brussels?

    Ontario airport is called Ontario and the only airport in Brussels is Brussels Bruxelles-National.

  • Which aircraft models fly most regularly from Ontario to Brussels?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Brussels?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Ontario and Brussels, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Ontario to Brussels?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Brussels.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Brussels?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Brussels?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back to Ontario with another airline. Booking your flights between Ontario and BRU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Brussels?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Ontario to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Brussels? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11255 reviews
7.1entertainment
7.2comfort
6.7food
7.7boarding
8.1crew
Airline reviews

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

2.0 MediocreAnonymous, Apr 2024SNA - IAH
Read more about United Airlines reviews

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Book cheap flights from Ontario to Brussels

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Brussels found on KAYAK in the last 72 hours.
4/29Mon
2 stopsUnited Airlines
19h 40mONT-BRU
$659
7/9Tue
2 stopsUnited Airlines
16h 15mONT-BRU
$663
7/12Fri
2 stopsUnited Airlines
16h 15mONT-BRU
$713
7/16Tue
2 stopsAir Canada
16h 25mONT-BRU
$789
6/15Sat
2 stopsBritish Airways
38h 31mONT-BRU
$812
6/19Wed
2 stopsBritish Airways
23h 05mONT-BRU
$895
5/29Wed
2 stops
22h 30mONT-BRU
$1,180
7/16Tue
2 stopsAmerican Airlines
22h 32mONT-BRU
$1,587
7/20Sat
2 stopsAmerican Airlines
34h 16mONT-BRU
$1,613
6/9Sun
2 stops
17h 50mONT-BRU
$2,748

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Brussels

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Brussels that are departing in the next 10 days.
4/28Sun
multi-stopDelta
18h 30mONT-BRU
5/14Tue
multi-stopDelta
18h 26mBRU-ONT
$773
4/28Sun
multi-stopBritish Airways
16h 22mONT-BRU
5/5Sun
multi-stopBritish Airways
18h 24mBRU-ONT
$833
4/26Fri
multi-stopBritish Airways
19h 05mONT-BRU
5/5Sun
multi-stopBritish Airways
18h 24mBRU-ONT
$883
4/27Sat
multi-stop
17h 35mONT-BRU
5/2Thu
multi-stop
19h 09mBRU-ONT
$1,682
4/26Fri
multi-stopIberia
26h 17mONT-BRU
4/28Sun
multi-stopIberia
33h 29mBRU-ONT
$1,799
4/27Sat
multi-stopIberia
18h 59mONT-BRU
5/4Sat
multi-stopIberia
20h 52mBRU-ONT
$1,908
4/28Sun
multi-stopBritish Airways
18h 38mONT-BRU
5/14Tue
multi-stopBritish Airways
18h 03mBRU-ONT
$2,193
4/28Sun
multi-stopVirgin Atlantic
17h 35mONT-BRU
5/14Tue
multi-stopVirgin Atlantic
22h 03mBRU-ONT
$2,464

Search by stops

Search by airline

Search by price

Ontario - Brussels Flights

Departure:

Ontario (ONT)United States

Destination:

Brussels (BRU)Belgium

Return flight deals:

Brussels - Ontario

Cabin classes: