$264 Cheap Flights from Samui Intl. Airport (USM) to Sydney (SYD)

View $264 flight on Thu, Mar 26, 2026Opens in a new window

Popular airlines from Samui Intl. Airport (USM) to Sydney Airport (SYD)

Cheap Flights from Samui Intl. Airport to Sydney (USM-SYD)

Prices were available within the past 7 days and start at $264 for one-way flights and $609 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Fri, Nov 14 - Fri, Nov 21
USM
Koh Samui
SYD
Sydney
$609 Roundtrip, found 4 days ago
$609
Roundtrip
found 4 days ago
Select Scoot flight, departing Fri, Nov 14 from Koh Samui to Sydney, returning Fri, Nov 21, priced at $609 found 4 days ago
Scoot
Fri, Nov 14 - Fri, Nov 21
USM
Koh Samui
SYD
Sydney
$615 Roundtrip, found 4 days ago
$615
Roundtrip
found 4 days ago
Select Scoot flight, departing Fri, Nov 14 from Koh Samui to Sydney, returning Fri, Nov 21, priced at $615 found 4 days ago
Scoot
Fri, Nov 14 - Fri, Nov 21
USM
Koh Samui
SYD
Sydney
$618 Roundtrip, found 4 days ago
$618
Roundtrip
found 4 days ago
Select Scoot flight, departing Fri, Nov 14 from Koh Samui to Sydney, returning Fri, Nov 21, priced at $618 found 4 days ago
Scoot
Fri, Nov 14 - Fri, Nov 21
USM
Koh Samui
SYD
Sydney
$625 Roundtrip, found 4 days ago
$625
Roundtrip
found 4 days ago
Select Scoot flight, departing Fri, Nov 14 from Koh Samui to Sydney, returning Fri, Nov 21, priced at $625 found 4 days ago
Scoot
Tue, Nov 18 - Tue, Nov 25
USM
Koh Samui
SYD
Sydney
$658 Roundtrip, found 1 hour ago
$658
Roundtrip
found 1 hour ago
Select Scoot flight, departing Tue, Nov 18 from Koh Samui to Sydney, returning Tue, Nov 25, priced at $658 found 1 hour ago
Scoot
Wed, Feb 11 - Tue, Feb 17
USM
Koh Samui
SYD
Sydney
$658 Roundtrip, found 5 days ago
$658
Roundtrip
found 5 days ago
Select Scoot flight, departing Wed, Feb 11 from Koh Samui to Sydney, returning Tue, Feb 17, priced at $658 found 5 days ago
Singapore Airlines
Wed, Feb 11 - Tue, Feb 17
USM
Koh Samui
SYD
Sydney
$1,001 Roundtrip, found 5 days ago
$1,001
Roundtrip
found 5 days ago
Select Singapore Airlines flight, departing Wed, Feb 11 from Koh Samui to Sydney, returning Tue, Feb 17, priced at $1,001 found 5 days ago
Malaysia Airlines
Sun, Nov 16 - Sun, Nov 23
USM
Koh Samui
SYD
Sydney
$1,044 Roundtrip, found 1 day ago
$1,044
Roundtrip
found 1 day ago
Select Malaysia Airlines flight, departing Sun, Nov 16 from Koh Samui to Sydney, returning Sun, Nov 23, priced at $1,044 found 1 day ago
Qantas Airways
Sun, Nov 16 - Sun, Nov 23
USM
Koh Samui
SYD
Sydney
$1,078 Roundtrip, found 1 day ago
$1,078
Roundtrip
found 1 day ago
Select Qantas Airways flight, departing Sun, Nov 16 from Koh Samui to Sydney, returning Sun, Nov 23, priced at $1,078 found 1 day ago
Cathay Pacific
Tue, Nov 18 - Tue, Nov 25
USM
Koh Samui
SYD
Sydney
$1,147 Roundtrip, found 1 hour ago
$1,147
Roundtrip
found 1 hour ago
Select Cathay Pacific flight, departing Tue, Nov 18 from Koh Samui to Sydney, returning Tue, Nov 25, priced at $1,147 found 1 hour ago

Frequently asked questions

How much does a flight from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD) cost?
Lock in a cheap one-way flight from $264 or cheap return flight from $609 from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD)?
The cheapest month to fly from USM to SYD is November, when there's less demand. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD)?
To find the cheapest airline that'll fly you from USM to SYD, use Expedia's filter tool. Customize 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 list the most affordable options first.
How many flights per day from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD)?
Nonstop flights from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from USM 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 public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD)?
To land at Kingsford Smith Intl. Airport (SYD) on schedule, select a flight that leaves Ko Samui Airport (USM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD) last-minute?
Last-minute fares from USM to SYD are typically more expensive. For the lowest rates, start searching for flights as soon as possible. That said, if you're flexible with your travel dates, you may land a cheap ticket right before your journey.
Is it cheaper to book an USM to SYD flight and hotel package?
Opting for an USM to SYD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of hotels and then add car rentals, activities 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 Ko Samui Airport (USM) to Kingsford Smith Intl. Airport (SYD)?
It's usually possible to reschedule or cancel your USM to SYD flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Samui Intl. Airport
Destination airport
Kingsford Smith Intl.
Roundtrip price
$608
Distance
4497 mi

Book with confidence

Book with confidence

Samui Intl. Airport to Sydney Flights

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

 

The best time to book a flight from Samui Intl. Airport to Sydney

Sunday is one of the best days to book for cheap flights from Samui Intl. Airport 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 Samui Intl. Airport 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 Samui Intl. Airport to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $264 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 Samui Intl. Airport 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 Samui Intl. Airport 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.

 

Samui Intl. Airport to Sydney Flights
*Available to One Key members.