$755 Cheap Flights from Aspen (ASE) to Sydney (SYD)

View $755 flight on Fri, Aug 8, 2025Opens in a new window

Popular airlines from Aspen/Pitkin County Airport (ASE) to Sydney Airport (SYD)

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Cheap Flights from Aspen to Sydney (ASE-SYD)

Prices were available within the past 7 days and start at $755 for one-way flights and $1,285 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,285 Roundtrip, found 15 hours ago
$1,285
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,285 found 15 hours ago
United
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,300 Roundtrip, found 15 hours ago
$1,300
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,300 found 15 hours ago
Delta
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,441 Roundtrip, found 15 hours ago
$1,441
Roundtrip
found 15 hours ago
Select Delta flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,441 found 15 hours ago
United
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,444 Roundtrip, found 15 hours ago
$1,444
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,444 found 15 hours ago
United
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,453 Roundtrip, found 15 hours ago
$1,453
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,453 found 15 hours ago
Delta
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,454 Roundtrip, found 15 hours ago
$1,454
Roundtrip
found 15 hours ago
Select Delta flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,454 found 15 hours ago
United
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$1,458 Roundtrip, found 15 hours ago
$1,458
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $1,458 found 15 hours ago
Air New Zealand
Fri, Oct 24 - Sun, Nov 9
ASE
Aspen
SYD
Sydney
$1,628 Roundtrip, found 4 days ago
$1,628
Roundtrip
found 4 days ago
Select Air New Zealand flight, departing Fri, Oct 24 from Aspen to Sydney, returning Sun, Nov 9, priced at $1,628 found 4 days ago
Qantas Airways
Fri, Oct 24 - Sun, Nov 9
ASE
Aspen
SYD
Sydney
$1,958 Roundtrip, found 4 days ago
$1,958
Roundtrip
found 4 days ago
Select Qantas Airways flight, departing Fri, Oct 24 from Aspen to Sydney, returning Sun, Nov 9, priced at $1,958 found 4 days ago
American Airlines
Fri, Aug 8 - Sat, Aug 23
ASE
Aspen
SYD
Sydney
$3,100 Roundtrip, found 15 hours ago
$3,100
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Fri, Aug 8 from Aspen to Sydney, returning Sat, Aug 23, priced at $3,100 found 15 hours ago
Flights from Aspen (ASE) to Sydney (SYD)
Origin airport
Pitkin County
Destination airport
Kingsford Smith Intl.
Airlines serving
Air New Zealand, American Airlines, Delta, Qantas Airways, United
Roundtrip price
$1,285
Distance
8228 mi

Aspen to Sydney Flights

The cheapest times to fly from Aspen to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Aspen to Sydney are during the month of August. You can find some of the cheapest flights from Aspen to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Aspen to Sydney

Sunday is one of the best days to book for cheap flights from Aspen to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Aspen to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Aspen to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $755 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Aspen to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Aspen to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD) cost?
Discover the latest flight deals from ASE to SYD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ASE to SYD?
The cheapest flights from ASE to SYD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ASE to SYD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ASE to SYD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD)?
There are no daily direct flights departing from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from ASE to SYD?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD)?
Book a flight from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD) last-minute?
Waiting until just before your departure to book a ticket from ASE to SYD generally means paying more. Although you may find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for a better chance of getting a bargain.
Is it cheaper to book an ASE to SYD flight and hotel package?
Securing an ASE to SYD flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pitkin County Airport (ASE) to Kingsford Smith Intl. Airport (SYD)?
If you booked your ASE to SYD flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

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*Available to One Key members.