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Find cheap flights from Ontario to Brussels from $673

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 9/15. 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
Wed 6/12
Wed 6/19

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 41,771,603 times on KAYAK, and here is why:

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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
2:39 pm - 7:15 pmONT-BRU
19h 36m2 stops
11:05 am - 9:42 pmBRU-ONT
19h 37m2 stops
$795British Airways
Find Deal
Sun, Sep 1 - Wed, Sep 18
6:10 am - 10:05 amONT-BRU
18h 55m2 stops
10:50 am - 10:03 pmBRU-ONT
20h 13m2 stops
$845British Airways
Find Deal
Mon, Aug 19 - Mon, Aug 26
5:40 pm - 8:45 amONT-BRU
30h 05m2 stops
10:45 am - 10:28 pmBRU-ONT
20h 43m2 stops
$850Delta
Find Deal
Mon, Sep 9 - Sun, Sep 22
6:02 am - 7:15 amONT-BRU
16h 13m2 stops
10:10 am - 10:21 pmBRU-ONT
20h 11m2 stops
$860United Airlines
Find Deal
Sun, Oct 13 - Sun, Oct 27
6:20 pm - 7:15 amONT-BRU
27h 55m2 stops
10:10 am - 10:21 pmBRU-ONT
20h 11m2 stops
$874United Airlines
Find Deal
Sat, Oct 12 - Sun, Oct 27
10:35 pm - 7:15 pmONT-BRU
35h 40m2 stops
10:20 am - 11:26 pmBRU-ONT
22h 06m2 stops
$969American Airlines
Find Deal
Sat, Aug 31 - Tue, Sep 17
10:29 pm - 2:20 pmONT-BRU
30h 51m2 stops
10:20 am - 1:52 pmBRU-ONT
36h 32m2 stops
$1,033American Airlines
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Mon, May 27 - Thu, May 30
6:00 am - 8:45 amONT-BRU
17h 45m2 stops
10:45 am - 10:57 pmBRU-ONT
21h 12m2 stops
$1,173Delta
Find Deal
Fri, Jul 12 - Thu, Aug 1
6:35 pm - 6:20 amONT-BRU
26h 45m2 stops
10:00 am - 12:33 pmBRU-ONT
35h 33m2 stops
$1,297
Find Deal
Tue, Jul 9 - Tue, Jul 30
1:47 pm - 6:20 amONT-BRU
31h 33m2 stops
10:00 am - 12:33 pmBRU-ONT
35h 33m2 stops
$1,310
Find Deal
Tue, Jul 9 - Sun, Jul 28

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 January, where tickets cost $681 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $1,285 and $1,214 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 3 days before departure. For the absolute cheapest price, our data suggests you should book 81 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 ($673) and American Airlines ($780), and the lowest round-trip tickets were found on British Airways ($795) and Delta ($850).

Good to know

Cheapest flight

$673
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 $673 for a one-way ticket and $795 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.

  • Which is the best airline for flights from Ontario to Brussels, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Brussels are United Airlines and American Airlines. With an average price for the route of $1,268 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $950 and an overall rating of 7.3.

  • 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 airlines 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 10980 reviews
7.2Comfort
8.1Crew
7.1Entertainment
6.7Food
7.7Boarding
Airline reviews

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

2.0 Mediocretimothy, May 2024SBA - DEN
Read more about United Airlines reviews

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

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

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

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.
9/15Sun
2 stopsUnited Airlines
16h 15mONT-BRU
$673
11/6Wed
2 stopsUnited Airlines
17h 05mONT-BRU
$728
11/7Thu
2 stops
15h 10mONT-BRU
$779
7/1Mon
2 stopsAmerican Airlines
19h 05mONT-BRU
$780
6/2Sun
2 stops
17h 30mONT-BRU
$808
6/3Mon
2 stops
31h 25mONT-BRU
$953
6/17Mon
2 stopsAmerican Airlines
36h 11mONT-BRU
$1,131
6/21Fri
2 stopsBritish Airways
16h 55mONT-BRU
$1,231

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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.
5/17Fri
multi-stopAmerican Airlines
17h 34mONT-BRU
5/25Sat
multi-stopAmerican Airlines
18h 48mBRU-ONT
$2,053
5/18Sat
multi-stopBritish Airways
16h 30mONT-BRU
5/25Sat
multi-stopBritish Airways
18h 13mBRU-ONT
$11,922

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Ontario - Brussels Flights

Departure:

Ontario (undefined)United States

Destination:

Brussels (BRU)Belgium

Return flight deals:

Brussels - Ontario

Cabin classes: