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Cheap flights from Ottawa to Brussels from C$ 465

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — BRU
22 Nov — 29 Nov1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Ottawa to Brussels are usually found in September or October, booked 86 days in advance, depart on a Wednesday or Sunday and return on a Saturday

Cheap flight deals from Ottawa to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) 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 23 October 2025.

Round-trip from

C$ 899

One-way from

C$ 465

Popular in

December

Cheapest in

September

Average price

C$ 911
Lufthansa
  • Lufthansa
  • 17/2-25/2
  • 2 total stops
  • 33h 18m total
  • Ottawa to Brussels
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6/4
  • 6/4
  • 2 total stops
  • 33h 00m total
  • Ottawa to Brussels
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Highest demand for flights based on searches. 4% potential increase in price (C$ 76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 36 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Ottawa to Brussels

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Brussels
Explore the most affordable flight options available from Ottawa to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 October 2025.

Fri 5/124:00 p.m.YOW - BRU
1 stop9h 50mBrussels Airlines
Sat 27/1210:00 a.m.BRU - YOW
1 stop10h 12mBrussels Airlines
Deal found 22/10C$ 918
Thu 20/112:50 p.m.YOW - BRU
1 stop11h 00mAir Canada
Thu 27/1110:00 a.m.BRU - YOW
2 stops13h 55mAir Canada
Deal found 21/10C$ 920
Fri 5/1210:20 a.m.YOW - BRU
2 stops15h 30mAir Canada
Sat 27/1210:00 a.m.BRU - YOW
2 stops17h 18mAir Canada
Deal found 22/10C$ 937
Sun 7/1212:05 p.m.YOW - BRU
2 stops13h 45mAir Canada
Mon 29/1210:00 a.m.BRU - YOW
2 stops14h 38mAir Canada
Deal found 21/10C$ 938
Thu 27/114:00 p.m.YOW - BRU
1 stop9h 50mMultiple Airlines
Tue 9/1210:00 a.m.BRU - YOW
2 stops13h 59mMultiple Airlines
Deal found 22/10C$ 969
Fri 5/124:00 p.m.YOW - BRU
1 stop9h 50mLufthansa
Fri 12/1210:00 a.m.BRU - YOW
1 stop10h 07mLufthansa
Deal found 23/10C$ 970
Fri 5/125:40 a.m.YOW - BRU
2 stops25h 55mMultiple Airlines
Fri 12/127:00 a.m.BRU - YOW
2 stops23h 42mMultiple Airlines
Deal found 23/10C$ 973
Thu 27/115:20 p.m.YOW - BRU
2 stops14h 55mKLM
Tue 9/126:15 a.m.BRU - YOW
2 stops14h 55mKLM
Deal found 22/10C$ 974
Sun 7/125:20 p.m.YOW - BRU
2 stops14h 55mKLM
Sun 14/126:15 a.m.BRU - YOW
2 stops14h 55mKLM
Deal found 23/10C$ 981
Sun 7/128:00 p.m.YOW - BRU
1 stop29h 50mAir Canada
Sun 14/1210:00 a.m.BRU - YOW
1 stop10h 07mAir Canada
Deal found 23/10C$ 1,035
Thu 27/118:00 p.m.YOW - CRL
3 stops20h 25mMultiple Airlines
Tue 9/128:10 a.m.CRL - YOW
3 stops46h 32mMultiple Airlines
Deal found 22/10C$ 1,250
Mon 22/124:45 p.m.YOW - CRL
3 stops21h 35mMultiple Airlines
Fri 2/18:35 a.m.CRL - YOW
2 stops21h 23mMultiple Airlines
Deal found 22/10C$ 2,250

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa 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 629,999 searches. Data last updated 23 October 2025.
Use the filters below to find and compare flights from Ottawa to Brussels that are best for you.

Fly from

Ottawa

Fly to

Brussels

Route

Depart

Return

Price

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Thu 19/3

10:50 a.m.-7:50 a.m.

1 stop16h 00m

Brussels Bruxelles-National

Thu 23/4

10:00 a.m.-4:16 p.m.

1 stop12h 16m

C$ 917

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Sun 7/12

4:00 p.m.-7:50 a.m.

1 stop9h 50m

Brussels Bruxelles-National

Mon 29/12

10:00 a.m.-2:12 p.m.

1 stop10h 12m

C$ 918

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Fri 5/12

4:00 p.m.-7:50 a.m.

1 stop9h 50m

Brussels Bruxelles-National

Sat 27/12

10:00 a.m.-2:12 p.m.

1 stop10h 12m

C$ 918

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Tue 13/1

11:20 a.m.-7:50 a.m.

2 stops14h 30m

Brussels Bruxelles-National

Tue 24/3

10:00 a.m.-5:42 p.m.

1 stop12h 42m

C$ 918

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Sun 22/2

4:00 p.m.-7:50 a.m.

1 stop9h 50m

Brussels Bruxelles-National

Thu 26/2

10:00 a.m.-2:08 p.m.

1 stop10h 08m

C$ 918

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Sun 7/12

2:50 p.m.-7:50 a.m.

1 stop11h 00m

Brussels Bruxelles-National

Mon 29/12

10:00 a.m.-2:12 p.m.

1 stop10h 12m

C$ 920

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Thu 20/11

2:50 p.m.-7:50 a.m.

1 stop11h 00m

Brussels Bruxelles-National

Thu 27/11

10:00 a.m.-5:55 p.m.

2 stops13h 55m

C$ 920

OttawaBrussels

YOW - BRU

YOWBRU

Ottawa

Sun 22/2

4:00 p.m.-7:50 a.m.

1 stop9h 50m

Brussels Bruxelles-National

Thu 26/2

10:00 a.m.-7:41 p.m.

2 stops15h 41m

C$ 920

OttawaBrussels

YOW - CRL

YOWCRL

Ottawa

Thu 27/11

8:00 p.m.-10:25 p.m.

3 stops20h 25m

Charleroi Brussels

Tue 9/12

8:10 a.m.-12:42 a.m.

3 stops46h 32m

C$ 1,250

OttawaBrussels

YOW - CRL

YOWCRL

Ottawa

Tue 13/1

4:55 p.m.-7:05 p.m.

3 stops20h 10m

Charleroi Brussels

Tue 24/3

8:10 a.m.-12:41 a.m.

3 stops21h 31m

C$ 1,459

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Showing 1-10 of 21 results
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Best time to book a flight from Ottawa to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Ottawa 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 Ottawa to Brussels

How far ahead should I book a flight from Ottawa to Brussels?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Brussels. Price data was last updated on 17 October 2025.

The price you pay for your flight from Ottawa to Brussels may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ottawa to Brussels?

Currently, September is the cheapest month in which you can book a flight from Ottawa to Brussels (average of C$ 634). Flying from Ottawa to Brussels in July is currently the most expensive (average of C$ 979). 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 YOW to BRU?

Find hourly flight availability from Ottawa 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 23 October 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 34% on flights from Ottawa to Brussels by exploring options for tickets in the morning.

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 23 October 2025.
Get a feel of what it's like to fly with United Airlines,Brussels Airlines, andAir Canada from Ottawa to Brussels by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,991 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Brussels Airlines
7.2
Good
368 reviews
United Airlines
7.4
Good
8,991 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,346 reviews
United Airlines
7.4
Good
8,991 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Ottawa 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 Ottawa to Brussels?

    For a flight from Ottawa to Brussels, you will be flying from Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city. Ottawa is the only Ottawa airport and it handles 0 outbound flights to Brussels per day. 3 airlines have flights to Brussels from Ottawa on a regular basis.

  • How long is the flight from Ottawa to Brussels?

    There are many flights that can get you from Ottawa to Brussels in 9h 50m. Fly via Air Canada or Brussels Airlines to get the fastest option. The distance from Ottawa to Brussels is about 5681 km. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ottawa to Brussels round-trip?

    Brussels Airlines, at C$ 747, was found to be the cheapest airline from Ottawa to Brussels.Alternate airlines to your destination round-trip include Air Canada and United Airlines. Users have found that Brussels Airlines is 31% cheaper than the other options available to this destination.

  • Can I find deals for flights from Ottawa to Brussels that include hotel bookings?

    Yes. In addition to deals on Ottawa to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Brussels.

  • Can I find deals for business class flights from Ottawa to Brussels?

    Yes. Cheapflights offers flight deals from Ottawa 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 Ottawa to Brussels?

    Currently, September is the cheapest month in which you can book a flight from Ottawa to Brussels (average of C$ 634). Flying from Ottawa to Brussels in July is currently the most expensive (average of C$ 979). 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

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Top 3 airlines flying from Ottawa to Brussels

Discover the top 3 airlines that operate flights from Ottawa to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 23 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapestC$ 747AverageC$ 1,103FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Air CanadaCheapestC$ 755AverageC$ 1,068FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 818AverageC$ 868FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Brussels?

Cheapflights makes it easy to find Ottawa to Brussels flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Brussels?

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Can Cheapflights find flights from Ottawa to Brussels with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ottawa to Brussels flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ottawa to Brussels become cheaper?

Yes! Start tracking prices for Ottawa to Brussels flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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