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Cheap flights from Ottawa to Brussels from C$ 403

YOW — BRU
21 Oct — 28 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Brussels

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Brussels

Sat 26/911:10 a.m. -
1 stop14h 00m
Fri 9/109:10 a.m. -
1 stop10h 48m
Deal found 18/9C$ 738
Sat 26/911:10 a.m. -
1 stop14h 00m
Fri 9/109:10 a.m. -
1 stop10h 48m
Deal found 19/9C$ 742
Sat 10/102:50 p.m. -
1 stop10h 20m
Tue 27/1010:00 a.m. -
2 stops14h 52m
Deal found 19/9C$ 745
Fri 2/102:35 p.m. -
1 stop10h 35m
Tue 13/109:10 a.m. -
1 stop10h 48m
Deal found 19/9C$ 748
Thu 15/103:10 p.m. -
1 stop10h 00m
Thu 22/109:10 a.m. -
2 stops13h 22m
Deal found 16/9C$ 752
Mon 5/1011:15 a.m. -
1 stop13h 55m
Fri 9/109:10 a.m. -
1 stop30h 09m
Deal found 18/9C$ 763
Mon 5/109:05 a.m. -
1 stop16h 05m
Sat 10/109:10 a.m. -
1 stop17h 40m
Deal found 17/9C$ 766
Fri 2/1012:00 p.m. -
2 stops13h 10m
Tue 13/109:10 a.m. -
1 stop16h 35m
Deal found 19/9C$ 775
Tue 1/122:00 p.m. -
3 stops20h 10m
Sat 12/128:55 a.m. -
2 stops20h 52m
Deal found 18/9C$ 990
Wed 2/122:55 p.m. -
2 stops14h 45m
Sat 12/128:55 a.m. -
2 stops20h 52m
Deal found 18/9C$ 1,018
Thu 15/108:55 p.m. -
3 stops20h 00m
Thu 22/1012:40 p.m. -
2 stops30h 00m
Deal found 16/9C$ 1,050
Sun 18/108:55 p.m. -
2 stops18h 30m
Sun 25/107:45 a.m. -
3 stops21h 59m
Deal found 18/9C$ 1,451

Find flight deals from Ottawa to Brussels

Round-trip from

C$ 738

One-way from

C$ 403

Popular in

July

Cheapest in

November

Average price

C$ 1,015
Air Canada
  • Air Canada
  • 7/10-21/10
  • 2 total stops
  • 30h 30m total
  • Ottawa to Brussels
Search Deals
17/10-31/12
  • 17/10-31/12
  • 2 total stops
  • 43h 40m total
  • Ottawa to Brussels
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 272 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ottawa to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Sun 11/10

12:25 p.m.-9:10 a.m.

3 stops38h 45m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 432

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Fri 2/10

7:40 p.m.-9:15 a.m.

2 stops31h 35m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 509

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Wed 4/11

10:20 a.m.-11:55 a.m.

3 stops19h 35m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 619

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Sun 27/9

2:15 p.m.-7:50 a.m.

1 stop11h 35m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 635

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Thu 1/10

8:00 a.m.-7:50 a.m.

2 stops17h 50m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 668

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Sun 15/11

6:55 p.m.-8:10 p.m.

2 stops43h 15m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 692

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Fri 2/10

2:35 p.m.-7:10 a.m.

1 stop10h 35m

Brussels Bruxelles-National

Tue 13/10

9:10 a.m.-1:58 p.m.

1 stop10h 48m

C$ 748

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Sat 10/10

6:45 a.m.-7:10 a.m.

2 stops18h 25m

Brussels Bruxelles-National

Mon 26/10

10:00 a.m.-7:52 p.m.

2 stops14h 52m

C$ 766

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Mon 5/10

11:15 a.m.-7:50 a.m.

2 stops14h 35m

Brussels Bruxelles-National

Fri 9/10

9:10 a.m.-4:32 p.m.

2 stops13h 22m

C$ 776

OttawaBrussels

YOW Ottawa - BRU Brussels Bruxelles-National

YOWBRU

Ottawa

Mon 4/1

5:30 a.m.-9:40 a.m.

2 stops22h 10m

Brussels Bruxelles-National

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 800

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/9

Showing 1-10 of 26 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Brussels

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

Currently, November is the cheapest month in which you can book a flight from Ottawa to Brussels (average of C$ 910). Flying from Ottawa to Brussels in July is currently the most expensive (average of C$ 1,358). 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.

How much does it cost to fly round-trip from Ottawa to Brussels?

Airfare is below average for this route at the moment.
Ottawa to Brussels flights typically cost between C$ 853 and C$ 1,210 in October.
The cheapest round-trip price found within the last 5 days was C$ 738 on Air Canada (7 Oct-21 Oct).

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

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 25 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Brussels

Get a feel of what it's like to fly with United Airlines and Air 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
10,226 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
10,226 reviews
United Airlines
7.4
Good
10,226 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
11,657 reviews
United Airlines
7.4
Good
10,226 reviews
Check prices

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

  • 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. 2 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 18h 25m. Fly via Air Canada to get the fastest option. The distance from Ottawa to Brussels is about 5681 km.

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

    United Airlines, at C$ 822, was found to be the cheapest airline from Ottawa to Brussels. An alternate airline flying to your destination would be Air Canada. Users have found that United Airlines is 26% 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, November is the cheapest month in which you can book a flight from Ottawa to Brussels (average of C$ 910). Flying from Ottawa to Brussels in July is currently the most expensive (average of C$ 1,358). 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

Top 2 airlines flying from Ottawa to Brussels

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 822AverageC$ 1,015FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 887AverageC$ 1,215FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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