Cheap flights from Austin to Sydney from $520
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Sydney departing on 10/21. 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 Austin 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 month to fly to Sydney?
In general, April is the cheapest month to fly from Austin to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,033. If you are unable to visit Sydney during the month of April, then departing from Austin during the month May is also very affordable. Most momondo users find prices during this month for around $1,078.
What is the cheapest day to depart on your flight to Sydney?
The cheapest day to depart from Austin to Sydney is on a Saturday when prices can be found for as low as $290. The most expensive day to fly to Sydney is Sunday, with ticket prices averaging around $1,047.
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 afternoon. momondo users have found flights departing from Austin to Sydney in the afternoon for as low as $207. 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 $1,244. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Sydney?
You are more likely to see cheaper flights to Sydney from Austin when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,336 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Austin for as low as $1,139 on momondo.
Can stopping save me money on Austin to Sydney flights?
You could potentially save up to 19% on your flight if you consider stops on a Austin to Sydney flight.
How have Austin to Sydney flight prices changed over time?
As of June 2025, prices for Austin to Sydney flights are approximately 46% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Austin Bergstrom to Sydney Kingsford Smith?
Fiji Airways, Air Canada, and Qantas Airways are the most popular carriers operating from Austin Bergstrom to Sydney Kingsford Smith
What airlines fly to Sydney?
United Airlines, American Airlines and Qantas Airways are the top three most popular airlines that fly to Sydney from Austin according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 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 Austin to Sydney
Cheap Austin to Sydney (AUS to SYD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Austin to Sydney
How far is Austin Bergstrom to Sydney Kingsford Smith by plane?
Austin Bergstrom and Sydney Kingsford Smith are 8463.9 mi apart from one another. Typically, this will take 19h 10m by plane in normal conditions.
When did momondo last update prices for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
Prices for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
The number of operators available for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport is 5 as of June 2025.
How old do you have to be to fly from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Austin to Sydney?
momondo data reveals that the most frequently booked airline on the route from Austin to Sydney is United Airlines, representing 41% of all bookings. The subsequent popular airlines are American Airlines at 25%, Qantas Airways at 16%, and Delta at 14%.
Best airlines flying from Austin to Sydney
Compare and see reviews for airlines that fly from Austin to Sydney with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $876 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $900 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $927 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $931 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $1,251 | Free Cancellation | Rating 7.5 854 reviews |
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Why should I use momondo to find a flight deal from Austin to Sydney?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Austin to Sydney. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Austin to Sydney with flexible booking policies on momondo?
All flight searches from Austin to Sydney on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Austin to Sydney?
momondo provides multiple filters to help you find the best flight to Sydney from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Austin to Sydney right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Austin to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.