$260 Cheap Flights from Samui Intl. Airport (USM) to Sydney (SYD)

View $260 flight on Wed, Sep 3, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $260 for one-way flights and $738 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Wed, Oct 1 - Sat, Oct 11
USM
Koh Samui
SYD
Sydney
$738 Roundtrip, found 3 days ago
$738
Roundtrip
found 3 days ago
Select Scoot flight, departing Wed, Oct 1 from Koh Samui to Sydney, returning Sat, Oct 11, priced at $738 found 3 days ago
Scoot
Wed, Oct 1 - Sat, Oct 11
USM
Koh Samui
SYD
Sydney
$744 Roundtrip, found 3 days ago
$744
Roundtrip
found 3 days ago
Select Scoot flight, departing Wed, Oct 1 from Koh Samui to Sydney, returning Sat, Oct 11, priced at $744 found 3 days ago
Scoot
Mon, Aug 18 - Mon, Aug 25
USM
Koh Samui
SYD
Sydney
$753 Roundtrip, found 9 hours ago
$753
Roundtrip
found 9 hours ago
Select Scoot flight, departing Mon, Aug 18 from Koh Samui to Sydney, returning Mon, Aug 25, priced at $753 found 9 hours ago
Scoot
Mon, Aug 18 - Mon, Aug 25
USM
Koh Samui
SYD
Sydney
$759 Roundtrip, found 9 hours ago
$759
Roundtrip
found 9 hours ago
Select Scoot flight, departing Mon, Aug 18 from Koh Samui to Sydney, returning Mon, Aug 25, priced at $759 found 9 hours ago
Scoot
Mon, Aug 18 - Mon, Aug 25
USM
Koh Samui
SYD
Sydney
$760 Roundtrip, found 9 hours ago
$760
Roundtrip
found 9 hours ago
Select Scoot flight, departing Mon, Aug 18 from Koh Samui to Sydney, returning Mon, Aug 25, priced at $760 found 9 hours ago
Scoot
Mon, Aug 18 - Mon, Aug 25
USM
Koh Samui
SYD
Sydney
$767 Roundtrip, found 9 hours ago
$767
Roundtrip
found 9 hours ago
Select Scoot flight, departing Mon, Aug 18 from Koh Samui to Sydney, returning Mon, Aug 25, priced at $767 found 9 hours ago
Bangkok Airways
Mon, Aug 18 - Mon, Aug 25
USM
Koh Samui
SYD
Sydney
$803 Roundtrip, found 9 hours ago
$803
Roundtrip
found 9 hours ago
Select Bangkok Airways flight, departing Mon, Aug 18 from Koh Samui to Sydney, returning Mon, Aug 25, priced at $803 found 9 hours ago
Malaysia Airlines
Wed, Oct 1 - Sat, Oct 11
USM
Koh Samui
SYD
Sydney
$828 Roundtrip, found 3 days ago
$828
Roundtrip
found 3 days ago
Select Malaysia Airlines flight, departing Wed, Oct 1 from Koh Samui to Sydney, returning Sat, Oct 11, priced at $828 found 3 days ago
Thai Airways International
Mon, Sep 29 - Sat, Oct 11
USM
Koh Samui
SYD
Sydney
$1,004 Roundtrip, found 3 days ago
$1,004
Roundtrip
found 3 days ago
Select Thai Airways International flight, departing Mon, Sep 29 from Koh Samui to Sydney, returning Sat, Oct 11, priced at $1,004 found 3 days ago
Singapore Airlines
Wed, Oct 1 - Sat, Oct 11
USM
Koh Samui
SYD
Sydney
$1,164 Roundtrip, found 3 days ago
$1,164
Roundtrip
found 3 days ago
Select Singapore Airlines flight, departing Wed, Oct 1 from Koh Samui to Sydney, returning Sat, Oct 11, priced at $1,164 found 3 days ago

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 $838
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $838
Flights from Samui Intl. Airport (USM) to Sydney (SYD)
Origin airport
Samui Intl. Airport
Destination airport
Kingsford Smith Intl.
Roundtrip price
$737
Distance
4497 mi

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 October. 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 $260 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.

 

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 $260 or cheap return flight from $738 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 October, 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.

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*Available to One Key members.