$835 Cheap Flights from Sydney (SYD) to Great Falls (GTF)

View $835 flight on Sun, Apr 12, 2026Opens in a new window

Popular airlines from Sydney Airport (SYD) to Great Falls, MT (GTF-Great Falls Intl.)

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Cheap Flights from Sydney to Great Falls (SYD-GTF)

Prices were available within the past 7 days and start at $835 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF) cost?
Lock in a cheap one-way flight from $835 or cheap return flight from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF)?
is the least expensive month to fly from SYD to GTF. Planning your trip for the off-season is often the key to finding a great deal.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SYD to GTF. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF)?
You'll need to take a flight with a layover when traveling from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from SYD to GTF?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF)?
To avoid potential delays on the Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF) route, travel before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF) last-minute?
Waiting until right before your break to book a ticket from SYD to GTF often results in higher prices. While it's possible to find some last-minute deals, there's no guarantee. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book a SYD to GTF flight and hotel package?
You can save money by booking a SYD to GTF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your ideal accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Great Falls Intl. Airport (GTF)?
If you booked your SYD to GTF flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Kingsford Smith Intl.
Destination airport
Great Falls Intl.
Distance
8220 mi

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Sydney to Great Falls Flights

The cheapest times to fly from Sydney to Great Falls

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 Sydney to Great Falls are during the month of . You can find some of the cheapest flights from Sydney to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Great Falls

Sunday is one of the best days to book for cheap flights from Sydney to Great Falls: 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 Sydney to Great Falls

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 Sydney to Great Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $835 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 Sydney to Great Falls 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 Sydney to Great Falls 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.

 

Sydney to Great Falls Flights

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*Available to One Key members.