How long is the flight from Australia to Ko Samui?

For as low as $465, Scoot can have you in Ko Samui from Australia in 10h 55m. There are 4910 km between Australia and Ko Samui. Find deals

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. Find deals

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). Find deals

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 Bangkok Airways, Qantas Airways and Singapore Airlines. Something to consider prior to booking your flight.

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

Users have found that booking a flight from Australia to Ko Samui at least 49 days early can save you up to 25% on average compared to booking a flight this week. If booking 49 days before your flight isn’t an option for you, users have found flights from Australia to Ko Samui for as little as $966 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,082 for flights departing within the next 3 days.

What is the cheapest month to fly from Australia to Ko Samui?

Flights from Australia to Ko Samui lean towards being more expensive in December. Prices are generally better when you fly from Australia to Ko Samui in August, with the cheapest ticket starting at $639.

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.

$251+ Cheap Flights from Australia to Ko Samui

Cheap flight deals from Australia to Ko Samui

Round-trip from	$465
One-way from	$251
Popular in	December
Cheapest in	August
Average price	$894

Scoot
12/10-21/10
2 total stops
21h 50m total
Australia to Ko Samui

Search Deals

Scoot
14/10
1 total stop
10h 55m total
Australia to Ko Samui

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($324 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($67 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Australia to Ko Samui

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 26 August 2025.

Sun 12/1021:55PER - USM

1 stop10h 55mScoot

Tue 21/1008:45USM - PER

1 stop10h 55mScoot

Deal found 24/8$465

Tue 14/1021:55PER - USM

1 stop10h 55mScoot

Tue 21/1008:45USM - PER

1 stop10h 55mScoot

Deal found 24/8$470

Fri 7/1105:35PER - USM

1 stop12h 10mScoot

Sat 15/1111:45USM - PER

1 stop15h 35mScoot

Deal found 24/8$515

Tue 14/1021:55PER - USM

1 stop21h 35mScoot

Thu 23/1008:45USM - PER

1 stop10h 55mScoot

Deal found 25/8$533

Fri 7/1105:35PER - USM

1 stop12h 10mMultiple Airlines

Sat 15/1108:15USM - PER

2 stops18h 45mMultiple Airlines

Deal found 24/8$590

Mon 13/1021:55PER - USM

1 stop10h 55mMultiple Airlines

Wed 22/1012:30USM - PER

2 stops39h 00mMultiple Airlines

Deal found 24/8$596

Mon 24/1105:35PER - USM

1 stop27h 25mScoot

Sun 30/1117:40USM - PER

1 stop21h 55mScoot

Deal found 25/8$606

Tue 14/1021:55PER - USM

1 stop10h 55mMultiple Airlines

Tue 21/1012:30USM - PER

2 stops30h 20mMultiple Airlines

Deal found 24/8$610

Sun 12/1021:55PER - USM

1 stop10h 55mMultiple Airlines

Tue 21/1012:30USM - PER

2 stops30h 20mMultiple Airlines

Deal found 24/8$612

Mon 24/1105:35PER - USM

1 stop27h 25mMultiple Airlines

Sun 30/1118:15USM - PER

2 stops32h 45mMultiple Airlines

Deal found 25/8$641

Tue 14/1021:55PER - USM

1 stop21h 35mMultiple Airlines

Thu 23/1008:00USM - PER

2 stops19h 30mMultiple Airlines

Deal found 25/8$642

Tue 25/1114:20SYD - USM

1 stop21h 40mScoot

Wed 3/1208:55USM - SYD

1 stop29h 55mScoot

Deal found 25/8$729

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 26 August 2025.

Sun 12/1021:55PER - USM

1 stop10h 55mScoot

Tue 21/1008:45USM - PER

1 stop10h 55mScoot

Deal found 24/8$465

Fri 7/1105:35PER - USM

1 stop12h 10mMultiple Airlines

Sat 15/1108:15USM - PER

2 stops18h 45mMultiple Airlines

Deal found 24/8$590

Tue 14/1021:55PER - USM

1 stop10h 55mScoot

Tue 21/1008:45USM - PER

1 stop10h 55mScoot

Deal found 24/8$470

Mon 13/1021:55PER - USM

1 stop19h 50mScoot

Wed 22/1017:40USM - PER

1 stop26h 00mScoot

Deal found 24/8$471

Sun 12/1021:55PER - USM

1 stop10h 55mScoot

Sat 25/1008:45USM - PER

1 stop10h 55mScoot

Deal found 23/8$473

Mon 13/1021:55PER - USM

1 stop10h 55mMultiple Airlines

Wed 22/1012:30USM - PER

2 stops39h 00mMultiple Airlines

Deal found 24/8$596

Tue 14/1021:55PER - USM

1 stop10h 55mMultiple Airlines

Tue 21/1012:30USM - PER

2 stops30h 20mMultiple Airlines

Deal found 24/8$610

Fri 7/1105:35PER - USM

1 stop12h 10mScoot

Sat 15/1111:45USM - PER

1 stop15h 35mScoot

Deal found 24/8$515

Wed 5/1120:05SYD - USM

1 stop15h 55mMultiple Airlines

Fri 21/1108:15USM - SYD

2 stops21h 00mMultiple Airlines

Deal found 22/8$729

Mon 24/1105:35PER - USM

1 stop27h 25mScoot

Sun 30/1117:40USM - PER

1 stop21h 55mScoot

Deal found 25/8$606

Mon 20/1022:30MEL - USM

1 stop13h 20mMultiple Airlines

Wed 29/1018:15USM - MEL

2 stops37h 25mMultiple Airlines

Deal found 24/8$773

Mon 13/1021:25SYD - USM

1 stop14h 25mMultiple Airlines

Tue 28/1012:25USM - SYD

2 stops26h 25mMultiple Airlines

Deal found 25/8$783

Last-minute flights from Australia to Ko Samui
Discover last-minute flight deals from Australia to Ko Samui. Data last updated 26 August 2025 and is based on user searches.

Sun 31/811:15BNE - USM

2 stops23h 20mMultiple Airlines

Mon 22/909:15USM - BNE

2 stops21h 40mMultiple Airlines

Deal found 23/8$1,266

Mon 1/910:15SYD - USM

2 stops37h 10mMultiple Airlines

Mon 8/908:00USM - SYD

2 stops20h 20mMultiple Airlines

Deal found 24/8$1,022

Mon 1/912:50SYD - USM

1 stop22h 00mScoot

Mon 8/908:45USM - SYD

1 stop31h 45mScoot

Deal found 24/8$1,151

Mon 1/911:25SYD - USM

2 stops26h 40mMultiple Airlines

Sun 7/909:15USM - SYD

2 stops21h 05mMultiple Airlines

Deal found 22/8$1,277

Tue 2/921:30MEL - USM

1 stop22h 15mScoot

Tue 9/912:05USM - MEL

1 stop20h 40mScoot

Deal found 25/8$924

Tue 2/913:20MEL - USM

1 stop21h 00mMultiple Airlines

Tue 9/915:25USM - MEL

2 stops17h 20mMultiple Airlines

Deal found 25/8$974

Thu 4/905:10PER - USM

2 stops16h 15mMultiple Airlines

Mon 8/908:00USM - PER

2 stops20h 50mMultiple Airlines

Deal found 25/8$795

Thu 4/910:10BNE - USM

2 stops26h 10mMultiple Airlines

Sat 13/911:45USM - BNE

2 stops17h 30mMultiple Airlines

Deal found 24/8$1,202

Mon 8/906:25PER - USM

1 stop13h 05mSingapore Airlines

Tue 16/917:40USM - PER

1 stop10h 30mSingapore Airlines

Deal found 25/8$1,143

Wed 10/905:10PER - USM

2 stops16h 15mMultiple Airlines

Sat 27/908:00USM - PER

2 stops19h 30mMultiple Airlines

Deal found 25/8$766

Thu 11/914:45ADL - USM

2 stops19h 35mMultiple Airlines

Mon 15/908:45USM - ADL

2 stops23h 20mMultiple Airlines

Deal found 25/8$1,254

Sat 20/907:50PER - USM

1 stop25h 00mMultiple Airlines

Sat 27/919:00USM - PER

2 stops32h 30mMultiple Airlines

Deal found 25/8$809

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 26 August 2025.

Tue 14/1021:55PER - USM

1 stop10h 55mScoot

Deal found 25/8$251

Sat 24/120:05SYD - USM

1 stop26h 45mScoot

Deal found 24/8$296

Wed 15/1021:55PER - USM

1 stop21h 35mScoot

Deal found 23/8$302

Mon 27/1013:35MEL - USM

1 stop33h 15mScoot

Deal found 25/8$302

Thu 23/1021:55PER - USM

1 stop21h 35mScoot

Deal found 25/8$310

Sun 2/1120:05SYD - USM

1 stop15h 55mScoot

Deal found 25/8$313

Wed 15/1005:10PER - USM

2 stops13h 50mMultiple Airlines

Deal found 23/8$320

Thu 15/122:35MEL - USM

1 stop24h 15mScoot

Deal found 23/8$339

Tue 9/923:15PER - USM

2 stops19h 45mMultiple Airlines

Deal found 25/8$342

Sat 1/1120:05SYD - USM

1 stop15h 55mScoot

Deal found 25/8$359

Thu 6/1120:05SYD - USM

1 stop15h 55mScoot

Deal found 25/8$361

Fri 31/1020:05SYD - USM

1 stop15h 55mScoot

Deal found 25/8$362

Fly from

Fly to

Route

Depart

Return

Price

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 12/10

21:55-07:50

1 stop10h 55m

Ko Samui

Tue 21/10

08:45-20:40

1 stop10h 55m

$465

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 14/10

21:55-07:50

1 stop10h 55m

Ko Samui

Tue 21/10

08:45-20:40

1 stop10h 55m

$470

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 13/10

21:55-16:45

1 stop19h 50m

Ko Samui

Wed 22/10

17:40-20:40

1 stop26h 00m

$471

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 12/10

21:55-07:50

1 stop10h 55m

Ko Samui

Sat 25/10

08:45-20:40

1 stop10h 55m

$473

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 7/11

05:35-16:45

1 stop12h 10m

Ko Samui

Sat 15/11

11:45-04:20

1 stop15h 35m

$515

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 7/11

05:35-16:45

1 stop12h 10m

Ko Samui

Sat 15/11

08:15-04:00

2 stops18h 45m

$590

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 13/10

21:55-07:50

1 stop10h 55m

Ko Samui

Wed 22/10

12:30-04:30

2 stops39h 00m

$596

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 24/11

05:35-08:00

1 stop27h 25m

Ko Samui

Sun 30/11

17:40-16:35

1 stop21h 55m

$606

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 14/10

21:55-07:50

1 stop10h 55m

Ko Samui

Tue 21/10

12:30-19:50

2 stops30h 20m

$610

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 13/10

21:25-16:45

1 stop23h 20m

Ko Samui

Sun 19/10

12:05-20:10

1 stop28h 05m

$724

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 60 results

...

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.

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

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

Currently, August is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $533). Flying from Australia to Ko Samui in December is currently the most expensive (average of $1,051). 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.

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.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with Singapore Airlines, Bangkok Airways, andThai 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

8.1

Very Good

1,352 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Singapore Airlines

8.1

Very Good

1,352 reviews

Singapore Airlines

8.1

Very Good

1,352 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Bangkok Airways

8.0

Very Good

112 reviews

Singapore Airlines

8.1

Very Good

1,352 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Thai Airways

7.8

Good

344 reviews

Singapore Airlines

8.1

Very Good

1,352 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Qantas Airways

7.5

Good

904 reviews

Singapore Airlines

8.1

Very Good

1,352 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Scoot

6.7

Okay

309 reviews

Singapore Airlines

8.1

Very Good

1,352 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 $465, Scoot can have you in Ko Samui from Australia in 10h 55m. There are 4910 km between Australia and Ko Samui.
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, August is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $533). Flying from Australia to Ko Samui in December is currently the most expensive (average of $1,051). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Australia to Ko Samui

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Top 6 airlines flying from Australia to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Scoot	Cheapest$500	Average$850	FlexibilityNo cancel fee	On-timeN/A	Search Scoot flights
Singapore Airlines	Cheapest$830	Average$1,342	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Qantas Airways	Cheapest$1,079	Average$1,973	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Bangkok Airways	Cheapest$1,123	Average$1,355	FlexibilityNo cancel fee	On-time74%	Search Bangkok Airways flights
Thai Airways	Cheapest$1,127	Average$1,437	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights
EVA Air	Cheapest$1,194	Average$1,621	FlexibilityNo cancel fee	On-time74%	Search EVA Air 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?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Australia to Ko Samui from $251

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. 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

Keep the following information in mind while searching for Australia to Ko Samui flight deals. Data was last updated 26 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 26 August 2025.

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 26 August 2025.

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

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

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

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

Find hourly flight availability from Australia to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 August 2025.

Reviews of airlines servicing Ko Samui

Get a feel of what it's like to fly with Singapore Airlines, Bangkok Airways, andThai 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

Find useful and relevant information for your journey from Australia to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Australia to Ko Samui

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

Top 6 airlines flying from Australia to Ko Samui

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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 26 August 2025.