YOW - SYD

C$ 859 Find Cheap Flights from Ottawa to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Sydney departing on 30/4. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Sydney, 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 Ottawa to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 1,793
Overall average: C$ 2,181
United Airlines
Sun 16/8Mon 31/8
YOW - SYD • 2 stops
Cheapest one-way flights
C$ 859
Typical prices: C$ 1,425-C$ 1,540
Multiple Airlines
Thu 30/4
YOW - SYD • 3 stops
Top airlines
Cheapest • from C$ 1,793 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Ottawa and Sydney. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 10% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ottawa to Sydney (YOW-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Sydney 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Sydney

Sun, 16 Aug - Mon, 31 Aug
United Airlines Logo
2:48 p.m. - 7:00 a.m.
YOW
-
SYD
26h 12m
2 stops
United Airlines Logo
10:20 a.m. - 1:59 p.m.
SYD
-
YOW
41h 39m
2 stops
C$ 1,793United Airlines
Sun, 16 Aug - Mon, 31 Aug
United Airlines Logo
2:48 p.m. - 7:00 a.m.
YOW
-
SYD
26h 12m
2 stops
United Airlines Logo
10:20 a.m. - 9:56 a.m.
SYD
-
YOW
37h 36m
2 stops
C$ 1,805United Airlines
Sun, 5 Apr - Mon, 20 Apr
United Airlines Logo
2:40 p.m. - 7:00 a.m.
YOW
-
SYD
26h 20m
2 stops
United Airlines Logo
9:30 a.m. - 11:54 p.m.
SYD
-
YOW
28h 24m
2 stops
C$ 1,807United Airlines
Sun, 5 Apr - Mon, 20 Apr
United Airlines Logo
10:44 a.m. - 7:00 a.m.
YOW
-
SYD
30h 16m
2 stops
United Airlines Logo
9:30 a.m. - 11:54 p.m.
SYD
-
YOW
28h 24m
2 stops
C$ 1,815United Airlines
Sun, 16 Aug - Mon, 31 Aug
United Airlines Logo
2:48 p.m. - 7:00 a.m.
YOW
-
SYD
26h 12m
2 stops
United Airlines Logo
10:20 a.m. - 9:56 a.m.
SYD
-
YOW
37h 36m
2 stops
C$ 1,819United Airlines
Wed, 5 Aug - Wed, 19 Aug
United Airlines Logo
3:10 p.m. - 7:00 a.m.
YOW
-
SYD
25h 50m
2 stops
United Airlines Logo
9:30 a.m. - 9:35 p.m.
SYD
-
YOW
26h 05m
2 stops
C$ 1,826United Airlines
Sat, 6 Jun - Wed, 24 Jun
United Airlines Logo
7:30 p.m. - 6:55 a.m.
YOW
-
SYD
45h 25m
2 stops
United Airlines Logo
10:20 a.m. - 10:05 p.m.
SYD
-
YOW
25h 45m
2 stops
C$ 1,827United Airlines
Sun, 16 Aug - Mon, 31 Aug
United Airlines Logo
10:37 a.m. - 7:00 a.m.
YOW
-
SYD
30h 23m
2 stops
United Airlines Logo
10:20 a.m. - 9:56 a.m.
SYD
-
YOW
37h 36m
2 stops
C$ 1,842United Airlines
Wed, 27 May - Wed, 10 Jun
United Airlines Logo
3:10 p.m. - 7:00 a.m.
YOW
-
SYD
25h 50m
2 stops
United Airlines Logo
9:30 a.m. - 11:54 p.m.
SYD
-
YOW
28h 24m
2 stops
C$ 1,844United Airlines
Tue, 19 May - Sat, 23 May
United Airlines Logo
2:40 p.m. - 7:00 a.m.
YOW
-
SYD
26h 20m
2 stops
United Airlines Logo
9:30 a.m. - 9:35 p.m.
SYD
-
YOW
26h 05m
2 stops
C$ 1,845United Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to Sydney flights

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

What is the cheapest month to fly from Ottawa to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to Sydney, 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 Ottawa to Sydney is November, where tickets cost C$ 2,052 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 2,649 and C$ 2,559 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ottawa to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ottawa to Sydney, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonJuly
Cheapest flightC$ 859
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Ottawa to Sydney

When to book flights from Ottawa to Sydney

Are your dates flexible? Find out the best times to travel from Ottawa to Sydney 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 flights from Ottawa to Sydney

  • What is the cheapest flight from Ottawa to Sydney?

    In the last 3 days, the lowest price for a flight from Ottawa to Sydney was C$ 859 for a one-way ticket and C$ 1,793 for a round-trip.

  • Which aircraft models fly most regularly from Ottawa to Sydney?

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

  • Which airline alliances offer flights from Ottawa to Sydney?

    Star Alliance is the only airline alliance operating flights between Ottawa and Sydney.

  • Which is the best airline for flights from Ottawa to Sydney, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Ottawa to Sydney are United Airlines and Air Canada. With an average price for the route of C$ 2,185 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 2,247 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Ottawa to Sydney?

    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 Ottawa to Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Ottawa 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 Ottawa to Sydney?

    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 Sydney with an airline and back to Ottawa with another airline.

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

    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 Sydney from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ottawa to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Sydney. 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 Ottawa to Sydney? 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 9427 reviews
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
Airline reviews

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

8.0 ExcellentAnonymous, Feb 2026
YEG - IAH
Read more United Airlines reviews

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Flight attendants had a little attitude. Food tastes no good.

From pre boarding to flight attendant, crew and baggage handler, excellent. Didn’t lost my luggage like West jet.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

Reliable, nice crew, I fly often on that flight and I like it all.

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

l really enjoy very much the flight was very pleasant

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

By modern air travel standards, our 15-hour flight to Delhi was very nice. Quiet-ish, straightforward, good service, okay seats, etc. All good.

Again, it was delayed and then our connecting aircraft was very cold.

It was very cold in the beginning; then I asked stewardess to do something about that, and she did something, so for the rest of the flight the temperature was closer to normal. It is typical: by some reason the pilots or whoever is in charge make the cod in the cabin unbearable. The seat is better than on WestJet or Flair, but is is very tight. No leg room.

Delayed for 15 min due to maintenance. We were asked to wait to board as a family, but took longer than if we were not asked anything.

Had to cancel the flight because there was a 14 hour layover before the flight. Unacceptable.

Terrible…. Reported missing luggage’s with injectable meds that needed refrigeration. Yet, delivery could not be expedited. Luggage’s were delivered 5 days after arrival. The meds were useless as ice pack had melted. So disappointed!!!

Terrible, luggage’s with b/p and diabetes meds including insulin and ozempic. I’ve in them had dissolved and rendered useless

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

We were happy with the service and cost of checking a bag

Flying with Air Canada is still better than the discount airlines like Flair. The seats are more comfortable and the on-board entertainment is better, with each seat having a built in screen and lots of content to watch. Onboard WIFI is also great to have, as well as plugs for charging. I think passengers in general are getting better at not bringing too much luggage onboard, and Air Canada is better at managing this without customers feeling like they are being taken advantage of with extra fees. I have travelled on different airlines and all seem to be loading faster, with fewer people bringing both a carry on and a personal item. Now I just bring one item and it fits under the seat so I don't need to worry about finding a place in the overhead bins. Overall, across the industry, asking customers to pay for carry on baggage is fair because it allows customers to only pay for what they need, and it helps to keep the planes on time. Kudos to Air Canada for its approach - the desired result is achieved without customers feeling that they are being surprised and caught with unexpected extra fees.

Everything you need to know for your flight from Ottawa to Sydney

Information on your arrival and departure airports