What is the cheapest airline that flies from Sydney Kingsford Smith to Ko Samui?

Scoot is the most popular carrier operating from Sydney Kingsford Smith to Ko Samui

Which stopover airport has the shortest connection time from Sydney to Ko Samui?

Bangkok (BKK) has the shortest average stopover time for this route: 3h 07m.

Which stopover airport has the shortest travel time from Sydney to Ko Samui?

Flights connecting via Bangkok (BKK) have the shortest average one-way travel time: 14h 10m.

Which stopover airport offers the lowest fares from Sydney to Ko Samui?

Flights via Singapore (SIN) offer the lowest average return price of $1,586.

Which airlines fly to Ko Samui?

Scoot, Singapore Airlines and Qantas Airways are the top three most popular airlines that fly to Ko Samui from Sydney according to our data. Scoot is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Ko Samui. Keep in mind that there are 4 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular for stopovers for flights between Sydney and Ko Samui?

Singapore (SIN) was the most common stop: 87% of momondo users choosing one-stop flights on this route connected there.

When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Ko Samui Airport?

Prices for flights from Sydney Kingsford Smith Airport to Ko Samui Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Ko Samui Airport?

As of September 2026, there are 4 operators available to choose from for flights from Sydney Kingsford Smith Airport to Ko Samui Airport.

How old do you have to be to fly from Sydney Kingsford Smith Airport to Ko Samui Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$394 Cheap Flights from Sydney to Ko Samui in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Ko Samui

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One-way

Last minute

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Cheap return flights

Enter your travel dates to find the best prices.

20:05 - 17:10SYD Sydney Kingsford Smith-USM Ko Samui

25h 05m1 stop Singapore Changi

18:05 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

14h 05m1 stop Singapore Changi

$629Scoot

Sun, 1 Nov - Tue, 17 Nov

20:05 - 17:10SYD Sydney Kingsford Smith-USM Ko Samui

25h 05m1 stop Singapore Changi

18:05 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

14h 05m1 stop Singapore Changi

$634Scoot

Mon, 2 Nov - Tue, 17 Nov

20:05 - 15:35SYD Sydney Kingsford Smith-USM Ko Samui

23h 30m2 stops Singapore Changi Bangkok Suvarnabhumi

18:05 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

14h 05m1 stop Singapore Changi

$748Multiple Airlines

Mon, 2 Nov - Tue, 17 Nov

20:05 - 19:50SYD Sydney Kingsford Smith-USM Ko Samui

27h 45m2 stops Singapore Changi Bangkok Suvarnabhumi

18:05 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

14h 05m1 stop Singapore Changi

$755Multiple Airlines

Sun, 1 Nov - Tue, 17 Nov

20:05 - 16:15SYD Sydney Kingsford Smith-USM Ko Samui

24h 10m2 stops Singapore Changi Bangkok Suvarnabhumi

18:05 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

14h 05m1 stop Singapore Changi

$757Multiple Airlines

Sun, 1 Nov - Tue, 17 Nov

20:05 - 17:10SYD Sydney Kingsford Smith-USM Ko Samui

25h 05m1 stop Singapore Changi

12:00 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

20h 10m1 stop Singapore Changi

$781Scoot

Sun, 1 Nov - Sun, 8 Nov

13:25 - 10:55SYD Sydney Kingsford Smith-USM Ko Samui

25h 30m1 stop Singapore Changi

18:05 - 12:10USM Ko Samui-SYD Sydney Kingsford Smith

14h 05m1 stop Singapore Changi

$792Scoot

Mon, 9 Nov - Wed, 18 Nov

16:30 - 21:05SYD Sydney Kingsford Smith-USM Ko Samui

32h 35m1 stop Singapore Changi

13:25 - 06:35USM Ko Samui-SYD Sydney Kingsford Smith

13h 10m1 stop Singapore Changi

$1,346Qantas Airways

Mon, 2 Nov - Tue, 17 Nov

16:10 - 18:15SYD Sydney Kingsford Smith-USM Ko Samui

30h 05m1 stop Singapore Changi

13:25 - 09:30USM Ko Samui-SYD Sydney Kingsford Smith

16h 05m2 stops Singapore Changi Melbourne

$1,582Qantas Airways

Mon, 2 Nov - Tue, 17 Nov

10:25 - 19:50SYD Sydney Kingsford Smith-USM Ko Samui

13h 25m1 stop Bangkok Suvarnabhumi

13:25 - 09:30USM Ko Samui-SYD Sydney Kingsford Smith

16h 05m2 stops Singapore Changi Melbourne

$1,603Qantas Airways

Wed, 28 Oct - Sun, 1 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

20:35 - 20:25SYD Sydney Kingsford Smith-USM Ko Samui

26h 50m2 stops Singapore Changi Phuket City

09:15 - 19:20USM Ko Samui-SYD Sydney Kingsford Smith

31h 05m2 stops Phuket City Singapore Changi

$1,232Multiple Airlines

Sat, 19 Sep - Sat, 26 Sep

20:35 - 18:50SYD Sydney Kingsford Smith-USM Ko Samui

25h 15m1 stop Singapore Changi

08:40 - 19:20USM Ko Samui-SYD Sydney Kingsford Smith

31h 40m1 stop Singapore Changi

$1,249Scoot

Sat, 19 Sep - Sat, 26 Sep

20:35 - 18:00SYD Sydney Kingsford Smith-USM Ko Samui

24h 25m2 stops Singapore Changi Phuket City

09:15 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

23h 30m2 stops Phuket City Singapore Changi

$1,277Multiple Airlines

Sun, 20 Sep - Sun, 27 Sep

10:15 - 20:25SYD Sydney Kingsford Smith-USM Ko Samui

37h 10m2 stops Ho Chi Minh City Phuket City

08:00 - 07:20USM Ko Samui-SYD Sydney Kingsford Smith

20h 20m2 stops Phuket City Ho Chi Minh City

$1,291Multiple Airlines

Wed, 23 Sep - Wed, 30 Sep

20:35 - 18:50SYD Sydney Kingsford Smith-USM Ko Samui

25h 15m1 stop Singapore Changi

08:40 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

24h 05m1 stop Singapore Changi

$1,295Scoot

Sun, 20 Sep - Sun, 27 Sep

20:35 - 20:25SYD Sydney Kingsford Smith-USM Ko Samui

26h 50m2 stops Singapore Changi Phuket City

08:00 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

24h 45m2 stops Phuket City Singapore Changi

$1,307Multiple Airlines

Mon, 21 Sep - Mon, 28 Sep

20:35 - 18:00SYD Sydney Kingsford Smith-USM Ko Samui

24h 25m2 stops Singapore Changi Phuket City

12:30 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

20h 15m2 stops Krabi Singapore Changi

$1,326Multiple Airlines

Sat, 19 Sep - Tue, 29 Sep

20:35 - 20:25SYD Sydney Kingsford Smith-USM Ko Samui

26h 50m2 stops Singapore Changi Phuket City

08:00 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

24h 45m2 stops Phuket City Singapore Changi

$1,329Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

20:35 - 21:10SYD Sydney Kingsford Smith-USM Ko Samui

27h 35m1 stop Singapore Changi

17:00 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

39h 45m2 stops Krabi Singapore Changi

$1,384Multiple Airlines

Sat, 19 Sep - Tue, 29 Sep

13:05 - 08:25SYD Sydney Kingsford Smith-USM Ko Samui

22h 20m1 stop Phuket City

17:00 - 11:45USM Ko Samui-SYD Sydney Kingsford Smith

39h 45m2 stops Krabi Singapore Changi

$1,398Multiple Airlines

Sat, 19 Sep - Sat, 26 Sep

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Scoot flights from Sydney to Ko Samui

Our best Scoot deals on Sydney to Ko Samui flight tickets

Scoot

1 Nov

SYD20:05Sydney Kingsford Smith

25h 05m

1 stop

USM17:10Ko Samui

17 Nov

USM18:05Ko Samui

14h 05m

1 stop

SYD12:10Sydney Kingsford Smith

$629

Scoot

2 Nov

SYD20:05Sydney Kingsford Smith

25h 05m

1 stop

USM17:10Ko Samui

17 Nov

USM18:05Ko Samui

14h 05m

1 stop

SYD12:10Sydney Kingsford Smith

$634

Scoot

1 Nov

SYD20:05Sydney Kingsford Smith

25h 05m

1 stop

USM17:10Ko Samui

8 Nov

USM12:00Ko Samui

20h 10m

1 stop

SYD12:10Sydney Kingsford Smith

$781

Vietnam Airlines flights from Sydney to Ko Samui

Our best Vietnam Airlines deals on Sydney to Ko Samui flight tickets

Vietnam Airlines

29 Sept

SYD10:15Sydney Kingsford Smith

31h 30m

3 stops

USM14:45Ko Samui

2 Oct

USM18:55Ko Samui

34h 20m

3 stops

SYD08:15Sydney Kingsford Smith

$3,180

Vietnam Airlines

23 Sept

SYD10:15Sydney Kingsford Smith

37h 15m

3 stops

USM20:30Ko Samui

30 Sept

USM19:10Ko Samui

34h 05m

3 stops

SYD08:15Sydney Kingsford Smith

$3,218

Vietnam Airlines

19 Sept

SYD10:15Sydney Kingsford Smith

37h 35m

3 stops

USM20:50Ko Samui

26 Sept

USM19:10Ko Samui

34h 05m

3 stops

SYD08:15Sydney Kingsford Smith

$3,304

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 1/11

20:05-17:10

1 stop25h 05m

Ko Samui

Tue 17/11

18:05-12:10

1 stop14h 05m

$629

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 2/11

20:05-17:10

1 stop25h 05m

Ko Samui

Tue 17/11

18:05-12:10

1 stop14h 05m

$634

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 2/11

20:05-15:35

2 stops23h 30m

Ko Samui

Tue 17/11

18:05-12:10

1 stop14h 05m

$748

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 1/11

20:05-19:50

2 stops27h 45m

Ko Samui

Tue 17/11

18:05-12:10

1 stop14h 05m

$755

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 1/11

20:05-16:15

2 stops24h 10m

Ko Samui

Tue 17/11

18:05-12:10

1 stop14h 05m

$757

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 1/11

20:05-17:10

1 stop25h 05m

Ko Samui

Sun 8/11

12:00-12:10

1 stop20h 10m

$781

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 9/11

13:25-10:55

1 stop25h 30m

Ko Samui

Wed 18/11

18:05-12:10

1 stop14h 05m

$792

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 2/11

16:30-21:05

1 stop32h 35m

Ko Samui

Tue 17/11

13:25-06:35

1 stop13h 10m

$1,346

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 2/11

16:10-18:15

1 stop30h 05m

Ko Samui

Tue 17/11

13:25-09:30

2 stops16h 05m

$1,582

Fastest return journey

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 28/10

10:25-19:50

1 stop13h 25m

Ko Samui

Sun 1/11

13:25-09:30

2 stops16h 05m

$1,603

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sydney to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Stopovers

What is the typical price of a round-trip flight between Sydney and Ko Samui?

Prices are currently low for flights on this route.

Typical prices usually range from $1,222 to $1,651.
The lowest price recently found on this route was $629.

What is the cheapest month to fly to Ko Samui?

The month of November is, on average, the cheapest month to fly to Ko Samui from Sydney, with most prices found around $934. If you aren’t able to travel during the month of November, then book flights to Ko Samui from Sydney during March instead. Flights to Ko Samui in March, while not as cheap as those in November, still average around $977.

How far in advance should I book a flight from Sydney to Ko Samui?

You are more likely to see cheaper flights to Ko Samui from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $1,197 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Sydney for as low as $879 on momondo.

How have Sydney to Ko Samui flight prices changed over time?

As of September 2026, prices for Sydney to Ko Samui flights are approximately 38% more expensive when compared to flights at the same time last year.

When to book flights from Sydney to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Sydney to Ko Samui (SYD to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Ko Samui

Best price found	$394
Fastest flight time	15h 55m
Direct flights	Wed
Airports in Ko Samui	1 airport

The best one-way flight to Ko Samui from Sydney in the past 72 hours is $394. The best return flight deal from Sydney to Ko Samui found on momondo in the last 72 hours is $629.

The fastest flight from Sydney to Ko Samui takes 15h 55m

Direct flights go from Sydney to Ko Samui on Wednesday. There are no airlines offering direct flights..

There is 1 airport in Ko Samui. From Sydney there are direct flights to Ko Samui (USM).

Search flight deals

Frequently asked questions about flying from Sydney to Ko Samui

How far is Sydney Kingsford Smith to Ko Samui by plane?
The distance between Sydney Kingsford Smith and Ko Samui is about 7231.6 km. By plane, this route typically takes 15h 55m.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Ko Samui Airport?
Prices for flights from Sydney Kingsford Smith Airport to Ko Samui Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Ko Samui Airport?
As of September 2026, there are 4 operators available to choose from for flights from Sydney Kingsford Smith Airport to Ko Samui Airport.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sydney to Ko Samui?
momondo data reveals that the most frequently booked airline on the route from Sydney to Ko Samui is Scoot, representing 64% of all bookings. The subsequent popular airlines are Singapore Airlines at 15%, Qantas Airways at 12%, and Thai Airways at 9%.

Best airlines flying from Sydney to Ko Samui

Compare and see reviews for airlines that fly from Sydney to Ko Samui with momondo

Airline	Rating	Free cancellation	Price
Scoot	PriceFrom $693	Free cancellation	Rating 6.7 336 reviews	Search Scoot flights
Qantas Airways	PriceFrom $978	Free cancellation	Rating 7.5 1,100 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,192	Free cancellation	Rating 8.2 1,602 reviews	Search Singapore Airlines flights
Thai Airways	PriceFrom $1,235	Free cancellation	Rating 7.9 420 reviews	Search Thai Airways flights

Ko Tao

Ko Pha Ngan

Khanom

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Why should I use momondo to find a flight deal from Sydney to Ko Samui?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Ko Samui for you.

Can I find flights from Sydney to Ko Samui with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ko Samui from Sydney which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sydney to Ko Samui?

momondo provides multiple filters to help you find the best flight to Ko Samui from Sydney. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Sydney to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ko Samui trip

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Cheap flights from Sydney to Ko Samui from $394

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Ko Samui departing on 20/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Scoot flights from Sydney to Ko Samui

Our best Scoot deals on Sydney to Ko Samui flight tickets

Vietnam Airlines flights from Sydney to Ko Samui

Our best Vietnam Airlines deals on Sydney to Ko Samui flight tickets

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How to get the cheapest flight ticket from Sydney to Ko Samui

What is the typical price of a round-trip flight between Sydney and Ko Samui?

What is the cheapest month to fly to Ko Samui?

How far in advance should I book a flight from Sydney to Ko Samui?

How have Sydney to Ko Samui flight prices changed over time?

What is the cheapest airline that flies from Sydney Kingsford Smith to Ko Samui?

Which airlines fly to Ko Samui?

Which airport is the most popular for stopovers for flights between Sydney and Ko Samui?

Which stopover airport offers the lowest fares from Sydney to Ko Samui?

Which stopover airport has the shortest travel time from Sydney to Ko Samui?

Which stopover airport has the shortest connection time from Sydney to Ko Samui?

When to book flights from Sydney to Ko Samui

Cheap Sydney to Ko Samui (SYD to USM) flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Ko Samui

Frequently asked questions about flying from Sydney to Ko Samui

Best airlines flying from Sydney to Ko Samui

Compare and see reviews for airlines that fly from Sydney to Ko Samui with momondo

Travelling to a place near Ko Samui?

Why use momondo?

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Airports servicing Thailand

Fly your favourite airline to Ko Samui

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