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Cheap flights from Ottawa to Sydney from C$ 813

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SYD
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Ottawa to Sydney Kingsford Smith are usually found in September or April, booked 73 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from Ottawa to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Sydney (SYD). 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 11 September 2025.

Round-trip from

C$ 1,922

One-way from

C$ 813

Popular in

December

Cheapest in

September

Average price

C$ 2,011
Air Canada
  • Air Canada
  • 16/2-9/3
  • 3 total stops
  • 56h 52m total
  • Ottawa to Sydney
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19/9
  • 19/9
  • 3 total stops
  • 58h 20m total
  • Ottawa to Sydney
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 326 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Ottawa to Sydney

Cheapest flights from Ottawa to Sydney
Explore the most affordable flight options available from Ottawa to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Wed 12/115:50 p.m.YOW - SYD
1 stop23h 45mAir Canada
Wed 3/1211:20 a.m.SYD - YOW
1 stop20h 25mAir Canada
Deal found 9/9C$ 1,922
Sun 26/106:00 a.m.YOW - SYD
3 stops35h 35mMultiple Airlines
Sun 2/112:00 p.m.SYD - YOW
3 stops35h 46mMultiple Airlines
Deal found 11/9C$ 1,959
Sun 26/107:45 a.m.YOW - SYD
1 stop33h 50mAir Canada
Sun 2/1111:20 a.m.SYD - YOW
1 stop20h 25mAir Canada
Deal found 11/9C$ 1,991
Fri 24/106:00 a.m.YOW - SYD
3 stops35h 20mMultiple Airlines
Fri 31/1010:20 a.m.SYD - YOW
3 stops29h 20mMultiple Airlines
Deal found 8/9C$ 2,001
Wed 26/117:45 a.m.YOW - SYD
1 stop33h 50mAir Canada
Mon 8/1211:20 a.m.SYD - YOW
2 stops26h 58mAir Canada
Deal found 11/9C$ 2,069
Sat 18/108:20 p.m.YOW - SYD
2 stops45h 00mAir Canada
Mon 27/1010:20 a.m.SYD - YOW
2 stops26h 58mAir Canada
Deal found 10/9C$ 2,070

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Sydney 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 11 September 2025.
Use the filters below to find and compare flights from Ottawa to Sydney that are best for you.

Fly from

Ottawa

Fly to

Sydney

Route

Depart

Return

Price

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Mon 16/2

7:45 a.m.-9:35 a.m.

1 stop33h 50m

Sydney Kingsford Smith

Mon 9/3

11:20 a.m.-7:22 p.m.

2 stops23h 02m

C$ 1,922

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Wed 12/11

5:50 p.m.-9:35 a.m.

1 stop23h 45m

Sydney Kingsford Smith

Wed 3/12

11:20 a.m.-10:18 p.m.

2 stops26h 58m

C$ 1,922

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Sat 14/2

8:50 a.m.-12:30 p.m.

2 stops35h 40m

Sydney Kingsford Smith

Sat 28/2

2:10 p.m.-2:44 p.m.

2 stops40h 34m

C$ 1,936

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Fri 24/10

6:00 a.m.-8:20 a.m.

3 stops35h 20m

Sydney Kingsford Smith

Fri 31/10

10:20 a.m.-12:40 a.m.

3 stops29h 20m

C$ 2,001

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Sun 23/11

10:50 a.m.-9:35 a.m.

3 stops30h 45m

Sydney Kingsford Smith

Sun 7/12

11:20 a.m.-9:42 a.m.

3 stops38h 22m

C$ 2,151

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Tue 25/11

9:45 a.m.-9:05 a.m.

2 stops31h 20m

Sydney Kingsford Smith

Tue 9/12

12:10 p.m.-6:55 p.m.

2 stops22h 45m

C$ 2,159

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Wed 26/11

9:45 a.m.-9:15 a.m.

2 stops31h 30m

Sydney Kingsford Smith

Sun 7/12

12:10 p.m.-6:55 p.m.

2 stops22h 45m

C$ 2,159

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Sat 29/11

7:30 p.m.-9:05 a.m.

2 stops45h 35m

Sydney Kingsford Smith

Sun 7/12

12:10 p.m.-6:55 p.m.

2 stops22h 45m

C$ 2,159

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Fri 19/9

2:20 p.m.-2:40 p.m.

3 stops58h 20m

C$ 813

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Wed 29/10

6:55 p.m.-7:25 a.m.

3 stops45h 30m

C$ 845

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 14 results
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Best time to book a flight from Ottawa to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Sydney. Price data was last updated on 29 August 2025.

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Ottawa to Sydney (average of C$ 1,326). Flying from Ottawa to Sydney in December is currently the most expensive (average of C$ 1,881). 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 SYD?

Find hourly flight availability from Ottawa to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to Sydney in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 11 September 2025.
Read reviews from past customers who have flown United Airlines and Air Canada from Ottawa to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ottawa to Sydney?

    Air Canada can get you from Ottawa to Sydney in just under 33h 50m. Your travel time can differ by up to . Airlines will cover a distance of 15862 km.

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

    Cheapflights users have booked flights from Ottawa to Sydney round-trip from C$ 1,793. Another airline that can offer you cheap pricing is United Airlines. Air Canada is 19% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Ottawa to Sydney (average of C$ 1,326). Flying from Ottawa to Sydney in December is currently the most expensive (average of C$ 1,881). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Penrith

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Ottawa to Sydney

Discover the top 2 airlines that operate flights from Ottawa to Sydney. 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,793AverageC$ 2,211FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 1,855AverageC$ 2,195FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Deals for Ottawa to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Ottawa.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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