Cheap flights from Ontario to Sydney from $451
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Sydney departing on 9/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Sydney
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Sydney?
The cheapest day to depart from Ontario to Sydney is on a Sunday when prices can be found for as low as $1,032. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,135.
What is the cheapest time of day to depart on your flight to Sydney?
According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Ontario to Sydney in the morning for as low as $949. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly at noon, with an average ticket price of $1,126. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest airline that flies from Ontario to Sydney Kingsford Smith?
United Airlines, American Airlines, and Hawaiian Airlines are the most popular carriers operating from Ontario to Sydney Kingsford Smith
What airlines fly to Sydney?
Qantas Airways, Fiji Airways and Delta are the top three most popular airlines that fly to Sydney from Ontario according to our data. Qantas Airways is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 13 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Sydney
Cheap Ontario to Sydney (ONT to SYD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Sydney
How far is Ontario to Sydney Kingsford Smith by plane?
A flight from Ontario to Sydney Kingsford Smith will travel around 7527.4 mi. 17h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Sydney Kingsford Smith Airport?
Prices for flights from Ontario Airport to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?
There is 1 operator available for flights from Ontario Airport to Sydney Kingsford Smith Airport as of June 2025.
How old do you have to be to fly from Ontario Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Sydney?
Based on momondo bookings for flights between Ontario and Sydney, the leading airline is United Airlines, making up 100% of the total bookings.
Best airlines flying from Ontario to Sydney
Compare and see reviews for airlines that fly from Ontario to Sydney with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $926 | Free Cancellation | Rating 7.4 8,790 reviews |
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Why should I use momondo to find a flight deal from Ontario to Sydney?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Sydney. momondo saves you time and could save you money on your trip.
Can I find flights from Ontario to Sydney with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Sydney from Ontario with this policy.
How can momondo help me find flights from Ontario to Sydney?
Once all potential Ontario to Sydney flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ontario to Sydney right now. Can momondo alert me if prices change?
Price alerts on flights to Sydney from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.