$417 Cheap Flights from Sydney (SYD) to Kalgoorlie - Boulder (KGI)

View $417 flight on Mon, Dec 15, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Kalgoorlie - Boulder, WA (KGI)

Cheap Flights from Sydney to Kalgoorlie - Boulder (SYD-KGI)

Prices were available within the past 7 days and start at $417 for one-way flights and $1,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,100 Roundtrip, found 5 days ago
$1,100
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,100 found 5 days ago
Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,134 Roundtrip, found 5 days ago
$1,134
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,134 found 5 days ago
Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,141 Roundtrip, found 5 days ago
$1,141
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,141 found 5 days ago
Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,142 Roundtrip, found 5 days ago
$1,142
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,142 found 5 days ago
Virgin Australia
Sat, Nov 15 - Wed, Nov 19
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,146 Roundtrip, found 4 days ago
$1,146
Roundtrip
found 4 days ago
Select Virgin Australia flight, departing Sat, Nov 15 from Sydney to Kalgoorlie - Boulder, returning Wed, Nov 19, priced at $1,146 found 4 days ago
Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,156 Roundtrip, found 5 days ago
$1,156
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,156 found 5 days ago
Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,163 Roundtrip, found 5 days ago
$1,163
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,163 found 5 days ago
Virgin Australia
Sat, Nov 15 - Wed, Nov 19
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,182 Roundtrip, found 4 days ago
$1,182
Roundtrip
found 4 days ago
Select Virgin Australia flight, departing Sat, Nov 15 from Sydney to Kalgoorlie - Boulder, returning Wed, Nov 19, priced at $1,182 found 4 days ago
Virgin Australia
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,189 Roundtrip, found 5 days ago
$1,189
Roundtrip
found 5 days ago
Select Virgin Australia flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,189 found 5 days ago
Qantas Airways
Sat, Dec 13 - Sat, Dec 20
SYD
Sydney
KGI
Kalgoorlie - Boulder
$1,223 Roundtrip, found 5 days ago
$1,223
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Sat, Dec 13 from Sydney to Kalgoorlie - Boulder, returning Sat, Dec 20, priced at $1,223 found 5 days ago

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI) cost?
Grab a cheap one-way flight from $417 or cheap return flight from $1,100 from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI)?
The cheapest month to fly from SYD to KGI is December, when there's less demand. Off-peak season is often when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SYD to KGI flight.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI)?
Nonstop flights from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SYD to KGI?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the time of year and carrier.*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 Kalgoorlie - Boulder Airport (KGI)?
To avoid potential delays on the Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI) route, aim to fly before 3 PM. Departures after this time are 22% more likely to be 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 Kalgoorlie - Boulder Airport (KGI) last-minute?
Last-minute bookings from SYD to KGI are generally more expensive. To secure the lowest prices, start looking for flights early. That being said, if you're flexible with your travel dates, you may score a cheap ticket right before your journey.
Is it cheaper to book a SYD to KGI flight and hotel package?
You can save money by booking a SYD to KGI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your preferred flights and accommodations, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Kalgoorlie - Boulder Airport (KGI)?
You can usually cancel or reschedule your SYD to KGI flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Kingsford Smith Intl.
Destination airport
Kalgoorlie - Boulder
Roundtrip price
$1,100
Distance
1741 mi

Book with confidence

Sydney to Kalgoorlie - Boulder Flights

The cheapest times to fly from Sydney to Kalgoorlie - Boulder

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

 

The best time to book a flight from Sydney to Kalgoorlie - Boulder

Sunday is one of the best days to book for cheap flights from Sydney to Kalgoorlie - Boulder: 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 Kalgoorlie - Boulder

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 Kalgoorlie - Boulder in 2025. You can also book with separate airlines for your outbound and return journeys, from $417 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 Kalgoorlie - Boulder 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 Kalgoorlie - Boulder 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 Kalgoorlie - Boulder Flights

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*Available to One Key members.