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Cheap flights from Australia to Ko Samui from $273

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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Ko Samui

Enter your travel dates to find the best prices.

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 28 January 2026.

Mon 19/1018:25
PER
-
USM
1 stop25h 25m
Scoot
Mon 26/1019:45
USM
-
PER
1 stop19h 45m
Scoot
Deal found 27/1$455
Tue 3/317:45
PER
-
USM
1 stop26h 05m
Scoot
Wed 25/308:55
USM
-
PER
1 stop18h 20m
Scoot
Deal found 26/1$478
Mon 14/909:40
PER
-
USM
1 stop25h 30m
Scoot
Wed 23/918:15
USM
-
PER
1 stop21h 55m
Scoot
Deal found 26/1$531
Sun 13/905:35
PER
-
USM
1 stop29h 35m
Scoot
Wed 23/918:15
USM
-
PER
1 stop9h 00m
Scoot
Deal found 26/1$541
Tue 21/418:25
PER
-
USM
1 stop23h 55m
Scoot
Fri 24/408:40
USM
-
PER
1 stop18h 35m
Scoot
Deal found 24/1$587
Mon 20/418:25
PER
-
USM
1 stop25h 25m
Scoot
Thu 30/408:40
USM
-
PER
1 stop18h 35m
Scoot
Deal found 27/1$628
Tue 3/317:45
PER
-
USM
1 stop26h 05m
Multiple Airlines
Wed 25/308:55
USM
-
PER
2 stops18h 35m
Multiple Airlines
Deal found 26/1$629
Mon 2/320:05
SYD
-
USM
1 stop26h 45m
Scoot
Tue 31/308:40
USM
-
SYD
1 stop31h 40m
Scoot
Deal found 27/1$632
Sat 7/317:45
PER
-
USM
1 stop26h 05m
Scoot
Sat 21/308:55
USM
-
PER
1 stop18h 20m
Scoot
Deal found 27/1$645
Thu 12/305:35
PER
-
USM
1 stop14h 15m
Multiple Airlines
Thu 19/308:15
USM
-
PER
2 stops19h 15m
Multiple Airlines
Deal found 25/1$649
Sun 15/317:45
PER
-
USM
1 stop26h 05m
Scoot
Sun 22/308:55
USM
-
PER
1 stop30h 35m
Scoot
Deal found 25/1$653
Sun 15/313:10
MEL
-
USM
1 stop22h 50m
Scoot
Wed 25/308:55
USM
-
MEL
1 stop23h 00m
Scoot
Deal found 25/1$661

Find 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 28 January 2026.

Round-trip from

$478

One-way from

$273

Popular in

December

Cheapest in

October

Average price

$1,304
Scoot
  • Scoot
  • 3/3-25/3
  • 2 total stops
  • 44h 25m total
  • Australia to Ko Samui
Search Deals
Scoot
  • Scoot
  • 15/7
  • 1 total stop
  • 10h 10m total
  • Australia to Ko Samui
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($271 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($56 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Australia to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 28 January 2026.
Use the filters below to find and compare flights from Australia to Ko Samui that are best for you.

Fly from

Australia

Fly to

Ko Samui

Route

Depart

Return

Price

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 3/3

17:45-18:50

1 stop26h 05m

Ko Samui

Wed 25/3

08:55-04:15

1 stop18h 20m

$478

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 20/4

18:25-18:50

1 stop25h 25m

Ko Samui

Thu 30/4

08:40-04:15

1 stop18h 35m

$628

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 17/3

05:35-18:50

1 stop14h 15m

Ko Samui

Tue 24/3

08:55-04:15

1 stop18h 20m

$629

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 2/3

20:05-18:50

1 stop26h 45m

Ko Samui

Tue 31/3

08:40-20:20

1 stop31h 40m

$632

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 21/4

05:35-17:20

1 stop12h 45m

Ko Samui

Fri 24/4

07:50-08:55

2 stops24h 05m

$676

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 16/4

05:35-18:50

1 stop14h 15m

Ko Samui

Thu 30/4

08:40-04:15

1 stop18h 35m

$681

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 5/3

17:45-18:50

1 stop26h 05m

Ko Samui

Mon 9/3

09:20-04:30

2 stops18h 10m

$720

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Mon 20/4

21:30-18:50

1 stop24h 20m

Ko Samui

Sat 25/4

08:40-20:15

1 stop32h 35m

$721

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 3/3

20:25-18:50

2 stops23h 25m

Ko Samui

Wed 25/3

15:50-04:30

2 stops11h 40m

$747

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 17/3

20:40-17:30

2 stops21h 50m

Ko Samui

Tue 24/3

15:50-04:30

2 stops11h 40m

$759

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 60 results
1
2
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6

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, October is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $438). Flying from Australia to Ko Samui in December is currently the most expensive (average of $805). 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.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 28 January 2026.
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
8.2
Very Good
1,439 reviews
Check prices

Overall

8.2

Food

7.8

Crew

8.6

Entertainment

8.0

Boarding

8.3

Comfort

8.0

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
8.2
Very Good
1,439 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Overall

8.2

Food

7.8

Crew

8.6

Entertainment

8.0

Boarding

8.3

Comfort

8.0

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
121 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Overall

8.2

Food

7.8

Crew

8.6

Entertainment

8.0

Boarding

8.3

Comfort

8.0

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
380 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Overall

8.2

Food

7.8

Crew

8.6

Entertainment

8.0

Boarding

8.3

Comfort

8.0

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
978 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Overall

8.2

Food

7.8

Crew

8.6

Entertainment

8.0

Boarding

8.3

Comfort

8.0

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
316 reviews
Singapore Airlines
8.2
Very Good
1,439 reviews
Check prices

Overall

8.2

Food

7.8

Crew

8.6

Entertainment

8.0

Boarding

8.3

Comfort

8.0

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

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?

    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 $478, Scoot can have you in Ko Samui from Australia in 26h 05m. There are 4910 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 $251. Singapore Airlines flights start at $498 while deals on Thai Airways start at $626 one-way.

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

    While some choose either Perth - Ko Samui or Brisbane - 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, October is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $438). Flying from Australia to Ko Samui in December is currently the most expensive (average of $805). 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

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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 28 January 2026.
Singapore Airlines flights from Australia to Ko Samui
Thai Airways flights from Australia to Ko Samui

Top 5 airlines flying from Australia to Ko Samui

Discover the top 5 airlines that operate flights from Australia to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$465Average$792FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$798Average$1,292FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$912Average$1,474FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Bangkok AirwaysCheapest$1,094Average$1,410FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Thai AirwaysCheapest$1,208Average$1,398FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

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?

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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