$423 Cheap Flights from Las Vegas (LAS) to Sydney (SYD)

View $423 flight on Wed, Mar 25, 2026Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to Sydney Airport (SYD)

Cheap Flights from Las Vegas to Sydney (LAS-SYD)

Prices were available within the past 7 days and start at $423 for one-way flights and $777 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Nov 17 - Tue, Nov 25
LAS
Las Vegas
SYD
Sydney
$777 Roundtrip, found 2 days ago
$777
Roundtrip
found 2 days ago
Select Air Canada flight, departing Mon, Nov 17 from Las Vegas to Sydney, returning Tue, Nov 25, priced at $777 found 2 days ago
Air Canada
Tue, Apr 7 - Sun, May 31
LAS
Las Vegas
SYD
Sydney
$782 Roundtrip, found 3 days ago
$782
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Apr 7 from Las Vegas to Sydney, returning Sun, May 31, priced at $782 found 3 days ago
Air Canada
Sun, Feb 8 - Sun, Feb 15
LAS
Las Vegas
SYD
Sydney
$783 Roundtrip, found 1 day ago
$783
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Feb 8 from Las Vegas to Sydney, returning Sun, Feb 15, priced at $783 found 1 day ago
Air Canada
Wed, Feb 4 - Tue, Feb 17
LAS
Las Vegas
SYD
Sydney
$787 Roundtrip, found 1 day ago
$787
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Feb 4 from Las Vegas to Sydney, returning Tue, Feb 17, priced at $787 found 1 day ago
Air Canada
Tue, Jan 27 - Sun, Feb 15
LAS
Las Vegas
SYD
Sydney
$795 Roundtrip, found 4 days ago
$795
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jan 27 from Las Vegas to Sydney, returning Sun, Feb 15, priced at $795 found 4 days ago
United
Wed, Mar 18 - Sun, Apr 5
LAS
Las Vegas
SYD
Sydney
$861 Roundtrip, found 5 days ago
$861
Roundtrip
found 5 days ago
Select United flight, departing Wed, Mar 18 from Las Vegas to Sydney, returning Sun, Apr 5, priced at $861 found 5 days ago
Qantas Airways
Tue, May 12 - Tue, May 19
LAS
Las Vegas
SYD
Sydney
$946 Roundtrip, found 3 hours ago
$946
Roundtrip
found 3 hours ago
Select Qantas Airways flight, departing Tue, May 12 from Las Vegas to Sydney, returning Tue, May 19, priced at $946 found 3 hours ago
American Airlines
Tue, Aug 25 - Mon, Sep 7
LAS
Las Vegas
SYD
Sydney
$947 Roundtrip, found 3 days ago
$947
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Aug 25 from Las Vegas to Sydney, returning Mon, Sep 7, priced at $947 found 3 days ago
Delta
Sun, Nov 9 - Sun, Nov 16
LAS
Las Vegas
SYD
Sydney
$982 Roundtrip, just found
$982
Roundtrip
just found
Select Delta flight, departing Sun, Nov 9 from Las Vegas to Sydney, returning Sun, Nov 16, priced at $982 just found
All Nippon Airways
Tue, Dec 9 - Tue, Feb 10
LAS
Las Vegas
SYD
Sydney
$1,056 Roundtrip, found 1 day ago
$1,056
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Tue, Dec 9 from Las Vegas to Sydney, returning Tue, Feb 10, priced at $1,056 found 1 day ago

Find the cheapest month to fly from Las Vegas (LAS) to Sydney (SYD)

February is typically the cheapest month to fly

From $892 - $1,257 per traveler.

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $964
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $964

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD) cost?
Grab a cheap one-way flight from $423 or cheap return flight from $777 from Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD) 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 Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD)?
The cheapest month to fly from LAS to SYD is November, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD)?
To find the cheapest airline that'll fly you from LAS to SYD, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD)?
There are no daily direct flights available from Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from LAS to SYD?
You'll typically 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 Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD)?
To touch down at Kingsford Smith Intl. Airport (SYD) without delays, choose a flight that leaves from Harry Reid Intl. Airport (LAS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD) last-minute?
Holding off until right before your break to book a flight from LAS to SYD often results in higher prices. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your travel plans for the best chance of scoring a bargain.
Is it cheaper to book a LAS to SYD flight and hotel package?
Booking a LAS to SYD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays 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 Harry Reid Intl. Airport (LAS) to Kingsford Smith Intl. Airport (SYD)?
It's generally possible to reschedule or cancel your LAS to SYD flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, Air Tahiti Nui, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, Delta, Fiji Airways, Hawaiian Airlines, Japan Airlines, Korean Air, Qantas Airways, United
Roundtrip price
$777
Distance
7726 mi

Book with confidence

Las Vegas to Sydney Flights

The cheapest times to fly from Las Vegas 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 Las Vegas to Sydney are during the month of November. You can find some of the cheapest flights from Las Vegas to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Las Vegas to Sydney

Sunday is one of the best days to book for cheap flights from Las Vegas 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 Las Vegas 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 Las Vegas to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $423 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 Las Vegas 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 Las Vegas 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.

 

Las Vegas to Sydney Flights

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*Available to One Key members.