How long is the flight from Australia to Ko Samui?

For as low as $1,336, Scoot can have you in Ko Samui from Australia in 13h 30m. There are 7030 km between Australia and Ko Samui. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from Australia to Ko Samui one-way?

To fly one-way, consider booking your trip with Scoot, which is currently one of the cheapest options available, starting at $269. Thai Airways flights start at $707 while deals on Singapore Airlines start at $786 one-way.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What are the most popular routes from Australia to Ko Samui?

While some choose either Sydney Kingsford Smith - Ko Samui or Perth - Ko Samui, Melbourne - Ko Samui is the most popular route from Australia to Ko Samui.

What are the most popular airlines that fly from Australia to Ko Samui?

The most popular airlines flying from Australia to Ko Samui are Scoot, Singapore Airlines and Qantas Airways. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from AU to USM?

When flying from Australia to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Ko Samui from Australia?

If you book a flight to Ko Samui from Australia, you will be flying to Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 3.3 km from the centre of Ko Samui.

Can I find deals for flights from Australia to Ko Samui that include hotel bookings?

Yes. In addition to deals on Australia to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Australia to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Ko Samui.

Can I find deals for business class flights from Australia to Ko Samui?

Yes. Cheapflights offers flight deals from Australia to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$403+ Cheap Flights from Australia to Ko Samui

Cheap flight deals from Australia to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Australia to Ko Samui
Explore the most affordable flight options available from Australia to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 November 2026.

Sun 15/1117:50 -

1 stop24h 20m

Tue 1/1218:05 -

1 stop13h 20m

Deal found 7/11$792

Tue 1/1219:00 -

2 stops23h 10m

Sun 6/1219:50 -

2 stops31h 00m

Deal found 5/11$817

Tue 1/1210:35 -

1 stop9h 20m

Sun 6/1208:55 -

1 stop22h 30m

Deal found 5/11$853

Sat 7/1122:35 -

1 stop16h 20m

Sat 21/1118:05 -

1 stop14h 05m

Deal found 4/11$859

Tue 1/1210:35 -

1 stop9h 20m

Mon 21/1208:55 -

1 stop22h 30m

Deal found 3/11$860

Mon 30/1104:50 -

2 stops17h 00m

Mon 21/1208:55 -

1 stop22h 30m

Deal found 3/11$884

Fri 13/1113:25 -

1 stop25h 30m

Wed 2/1208:55 -

1 stop32h 25m

Deal found 5/11$884

Mon 9/1122:35 -

1 stop16h 20m

Wed 25/1108:55 -

1 stop32h 25m

Deal found 6/11$891

Sat 14/1120:05 -

1 stop25h 05m

Sat 28/1108:55 -

1 stop29h 55m

Deal found 7/11$892

Sun 8/1113:25 -

1 stop25h 30m

Mon 30/1108:55 -

1 stop23h 15m

Deal found 5/11$894

Tue 8/1210:35 -

1 stop9h 20m

Tue 15/1208:55 -

1 stop22h 30m

Deal found 7/11$897

Mon 9/1122:35 -

1 stop22h 35m

Sun 29/1108:55 -

1 stop23h 15m

Deal found 4/11$913

Best flights from Australia to Ko Samui
Discover carefully curated flight deals from Australia to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 November 2026.

Mon 30/1105:30 -

3 stops18h 55m

Sat 5/1208:55 -

1 stop32h 25m

Deal found 3/11$1,095

Sun 14/310:30 -

1 stop11h 35m

Thu 18/313:25 -

1 stop9h 30m

Deal found 4/11$1,186

Sat 13/300:45 -

2 stops15h 55m

Thu 18/307:55 -

2 stops13h 35m

Deal found 4/11$1,514

Sat 13/303:30 -

2 stops18h 50m

Mon 5/408:45 -

2 stops15h 25m

Deal found 8/11$1,539

Tue 2/323:55 -

1 stop21h 15m

Tue 16/319:50 -

1 stop22h 30m

Deal found 5/11$1,544

Thu 11/314:15 -

2 stops32h 50m

Mon 15/311:40 -

2 stops24h 35m

Deal found 7/11$1,782

Thu 14/117:50 -

1 stop26h 05m

Mon 25/119:50 -

1 stop11h 35m

Deal found 4/11$1,793

Sun 15/1111:30 -

2 stops36h 20m

Tue 1/1220:20 -

2 stops33h 30m

Deal found 6/11$2,117

Fri 27/1107:55 -

2 stops28h 05m

Fri 4/1208:55 -

2 stops17h 35m

Deal found 3/11$1,118

Sun 28/206:00 -

2 stops28h 10m

Sun 21/308:55 -

2 stops19h 50m

Deal found 8/11$1,202

Wed 3/310:35 -

1 stop13h 30m

Wed 1/913:30 -

1 stop13h 30m

Deal found 6/11$1,336

Mon 1/319:50 -

2 stops27h 35m

Fri 3/913:30 -

1 stop13h 30m

Deal found 6/11$1,405

Wed 3/318:20 -

1 stop16h 40m

Sun 7/308:55 -

1 stop29h 20m

Deal found 7/11$1,576

Mon 19/418:50 -

2 stops26h 30m

Mon 17/511:05 -

2 stops16h 35m

Deal found 4/11$1,335

Mon 19/409:10 -

1 stop12h 10m

Mon 17/518:15 -

1 stop10h 40m

Deal found 4/11$1,588

Mon 19/420:00 -

2 stops26h 10m

Mon 17/509:15 -

3 stops21h 45m

Deal found 4/11$1,795

Fri 13/1121:00 -

2 stops27h 25m

Wed 2/1216:25 -

1 stop13h 50m

Deal found 4/11$1,489

Sun 14/302:30 -

2 stops19h 50m

Sun 4/408:45 -

2 stops15h 25m

Deal found 7/11$1,806

Fri 11/1205:30 -

2 stops16h 00m

Sat 19/1212:30 -

2 stops36h 00m

Deal found 5/11$1,365

Mon 22/223:55 -

1 stop23h 00m

Tue 2/319:50 -

1 stop22h 30m

Deal found 3/11$1,600

Sun 28/208:30 -

2 stops23h 40m

Sat 6/311:40 -

1 stop34h 15m

Deal found 4/11$1,796

Fri 15/120:05 -

1 stop25h 05m

Mon 25/108:55 -

2 stops18h 30m

Deal found 3/11$1,370

Sat 27/202:30 -

2 stops19h 50m

Sun 7/307:55 -

2 stops16h 35m

Deal found 4/11$1,852

Tue 2/306:00 -

2 stops17h 25m

Tue 31/816:25 -

2 stops15h 20m

Deal found 6/11$1,566

Wed 24/218:20 -

1 stop25h 50m

Sat 27/208:55 -

1 stop29h 20m

Deal found 3/11$1,601

Thu 25/202:30 -

2 stops18h 55m

Mon 8/307:55 -

2 stops16h 35m

Deal found 4/11$1,852

Thu 28/123:55 -

1 stop12h 05m

Sun 7/218:15 -

2 stops15h 15m

Deal found 7/11$1,444

Fri 30/422:55 -

1 stop22h 55m

Fri 7/519:45 -

1 stop22h 30m

Deal found 8/11$1,606

Mon 15/308:30 -

2 stops23h 40m

Sat 3/411:55 -

1 stop33h 45m

Deal found 7/11$1,972

Fri 16/413:40 -

2 stops23h 00m

Mon 3/509:15 -

2 stops18h 25m

Deal found 6/11$1,476

Find flight deals from Australia to Ko Samui

Round-trip from	$713
One-way from	$403
Popular in	January
Cheapest in	March
Average price	$1,020

17/2-12/3
2 total stops
30h 45m total
Australia to Ko Samui

Search Deals

Scoot
25/1-31/12
1 total stop
33h 30m total
Australia to Ko Samui

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($325 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($59 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Fri 12/2

14:15-12:20

1 stop23h 05m

Ko Samui

Wed 31/12

00:00-01:00

Nonstop0h 00m

$406

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 1/2

13:25-18:55

1 stop33h 30m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$412

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Tue 26/1

20:05-08:00

1 stop15h 55m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$415

MelbourneKo Samui

MEL Melbourne - USM Ko Samui

MELUSM

Melbourne

Wed 27/1

22:35-18:55

1 stop24h 20m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$421

MelbourneKo Samui

MEL Melbourne - USM Ko Samui

MELUSM

Melbourne

Sun 24/1

13:25-17:10

1 stop31h 45m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$429

MelbourneKo Samui

MEL Melbourne - USM Ko Samui

MELUSM

Melbourne

Mon 25/1

07:45-17:10

2 stops37h 25m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$450

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Tue 2/3

20:05-17:10

1 stop25h 05m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$451

AdelaideKo Samui

ADL Adelaide - USM Ko Samui

ADLUSM

Adelaide

Fri 15/1

06:25-08:00

2 stops29h 05m

Ko Samui

Wed 31/12

00:00-02:30

Nonstop0h 00m

$473

MelbourneKo Samui

MEL Melbourne - USM Ko Samui

MELUSM

Melbourne

Sat 23/1

07:45-08:00

2 stops28h 15m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$482

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 31/1

17:10-18:55

2 stops29h 45m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$488

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Australia to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Australia with our price prediction graph.

PER-USM

MEL-USM

SYD-USM

WSI-USM

ADL-USM

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Australia to Ko Samui

AU0-USM

PER-USM

MEL-USM

SYD-USM

WSI-USM

What is the cheapest month to book a flight from Australia to Ko Samui?

Currently, March is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $1,016). Flying from Australia to Ko Samui in December is currently the most expensive (average of $1,766). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Australia to Ko Samui?

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Australia to Ko Samui. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with Singapore Airlines,Thai Airways, andQantas Airways from Australia to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.2

Very Good

1,632 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Singapore Airlines

8.2

Very Good

1,632 reviews

Singapore Airlines

8.2

Very Good

1,632 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Thai Airways

7.9

Good

433 reviews

Singapore Airlines

8.2

Very Good

1,632 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Qantas Airways

7.5

Good

1,123 reviews

Singapore Airlines

8.2

Very Good

1,632 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Scoot

6.7

Okay

337 reviews

Singapore Airlines

8.2

Very Good

1,632 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Related info for your journey

What airport do you fly into for flights to Ko Samui from Australia?
If you book a flight to Ko Samui from Australia, you will be flying to Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 3.3 km from the centre of Ko Samui.
How long is the flight from Australia to Ko Samui?
For as low as $1,336, Scoot can have you in Ko Samui from Australia in 13h 30m. There are 7030 km between Australia and Ko Samui. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from Australia to Ko Samui one-way?
To fly one-way, consider booking your trip with Scoot, which is currently one of the cheapest options available, starting at $269. Thai Airways flights start at $707 while deals on Singapore Airlines start at $786 one-way.
What are the most popular routes from Australia to Ko Samui?
While some choose either Sydney Kingsford Smith - Ko Samui or Perth - Ko Samui, Melbourne - Ko Samui is the most popular route from Australia to Ko Samui.
Can I find deals for flights from Australia to Ko Samui that include hotel bookings?
Yes. In addition to deals on Australia to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Australia to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Ko Samui.
Can I find deals for business class flights from Australia to Ko Samui?
Yes. Cheapflights offers flight deals from Australia to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Australia to Ko Samui?
Currently, March is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $1,016). Flying from Australia to Ko Samui in December is currently the most expensive (average of $1,766). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Ko Tao

Ko Pha Ngan

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Airlines

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Flights by cabin class

Ko Samui flight routes

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Fly from Australia to Ko Samui on these airlines

Singapore Airlines flights from Australia to Ko Samui

Thai Airways flights from Australia to Ko Samui

Top 4 airlines flying from Australia to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Scoot	Cheapest$555	Average$1,009	FlexibilityNo cancel fee	On-timeN/A	Search Scoot flights
Qantas Airways	Cheapest$1,031	Average$1,297	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Singapore Airlines	Cheapest$1,081	Average$1,582	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Thai Airways	Cheapest$1,283	Average$1,592	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Australia to Ko Samui?

Cheapflights helps you search for flights from Australia to Ko Samui via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Australia to Ko Samui?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui from Australia.

Can Cheapflights find flights from Australia to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui from Australia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Australia to Ko Samui become cheaper?

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Cheap flights from Australia to Ko Samui from $403

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Australia to Ko Samui

Cheapest flights from Australia to Ko SamuiExplore the most affordable flight options available from Australia to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 November 2026.

Explore the most affordable flight options available from Australia to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 November 2026.

Best flights from Australia to Ko SamuiDiscover carefully curated flight deals from Australia to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 November 2026.

Discover carefully curated flight deals from Australia to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 November 2026.

Last-minute flights from Australia to Ko SamuiDiscover last-minute flight deals from Australia to Ko Samui. Data last updated 8 November 2026 and is based on user searches.

Discover last-minute flight deals from Australia to Ko Samui. Data last updated 8 November 2026 and is based on user searches.

One-way flights from Australia to Ko SamuiSearch for one-way flight options from Australia to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 8 November 2026.

Search for one-way flight options from Australia to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 8 November 2026.

Find flight deals from Australia to Ko Samui

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Australia to Ko Samui that are best for you.

Best time to book a flight from Australia to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Australia with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Australia to Ko Samui?

How far ahead should I book a flight from Australia to Ko Samui?

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Australia to Ko Samui. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with Singapore Airlines,Thai Airways, andQantas Airways from Australia to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Ko Samui from Australia?

How long is the flight from Australia to Ko Samui?

What are the cheapest airlines to fly from Australia to Ko Samui one-way?

What are the most popular routes from Australia to Ko Samui?

Can I find deals for flights from Australia to Ko Samui that include hotel bookings?

How can I find direct flights from Australia to Ko Samui?

Can I find deals for business class flights from Australia to Ko Samui?

What is the cheapest month to book a flight from Australia to Ko Samui?

Travelling to a place near Ko Samui?

Browse thousands of different options on Cheapflights for your next trip

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Fly from Australia to Ko Samui on these airlines

Choose from the following airlines for your flight from Australia to Ko Samui. Flights are based on user searches made on Cheapflights and were last updated on 8 November 2026.

Alternative routes for Australia to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ko Samui by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Thailand

Book a non-stop flight to one of these other cities located in Thailand.

Search flights from Australia to Ko Samui by cabin class

Find flights from Australia to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 November 2026.

Australia and Ko Samui flights

Browse other Australia and Ko Samui flight options. Last updated on 8 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Australia to Ko Samui flights

Consider these flights travelling from Australia to Ko Samui.

Top 4 airlines flying from Australia to Ko Samui

Fly with Cheapflights

How does Cheapflights help users find flights from Australia to Ko Samui?

Why should you use Cheapflights to find cheap flight tickets from Australia to Ko Samui?

Can Cheapflights find flights from Australia to Ko Samui with no change fees?

Can Cheapflights notify me if prices for flights from Australia to Ko Samui become cheaper?

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Cheapest flights from Australia to Ko Samui
Explore the most affordable flight options available from Australia to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 November 2026.

Best flights from Australia to Ko Samui
Discover carefully curated flight deals from Australia to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 November 2026.

Last-minute flights from Australia to Ko Samui
Discover last-minute flight deals from Australia to Ko Samui. Data last updated 8 November 2026 and is based on user searches.

One-way flights from Australia to Ko Samui
Search for one-way flight options from Australia to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 8 November 2026.