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Cheap flights from Australia to Ko Samui from $299

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
8 Jun — 15 Jun1
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 9 May 2026.

Thu 5/1105:35
PER
-
USM
1 stop12h 35m
Scoot
Sun 15/1108:55
USM
-
PER
1 stop18h 20m
Scoot
Deal found 5/5$666
Sun 7/607:30
PER
-
USM
1 stop10h 25m
Multiple Airlines
Thu 18/608:40
USM
-
PER
1 stop18h 40m
Multiple Airlines
Deal found 7/5$672
Sun 7/607:30
PER
-
USM
1 stop10h 25m
Multiple Airlines
Sun 14/619:00
USM
-
PER
2 stops32h 20m
Multiple Airlines
Deal found 5/5$692
Thu 15/1014:00
MEL
-
USM
1 stop32h 50m
Scoot
Thu 22/1019:45
USM
-
MEL
1 stop21h 35m
Scoot
Deal found 7/5$698
Tue 13/1022:35
MEL
-
USM
1 stop24h 15m
Scoot
Tue 20/1019:45
USM
-
MEL
1 stop21h 35m
Scoot
Deal found 5/5$699
Mon 2/1122:35
MEL
-
USM
1 stop13h 25m
Scoot
Mon 16/1119:45
USM
-
MEL
1 stop21h 35m
Scoot
Deal found 7/5$710
Thu 15/1014:00
MEL
-
USM
1 stop32h 50m
Scoot
Wed 28/1018:05
USM
-
MEL
1 stop23h 15m
Scoot
Deal found 8/5$715
Sat 17/1014:00
MEL
-
USM
1 stop21h 45m
Scoot
Sat 24/1018:15
USM
-
MEL
1 stop13h 40m
Scoot
Deal found 9/5$716
Fri 16/1022:35
MEL
-
USM
1 stop22h 45m
Scoot
Fri 23/1019:45
USM
-
MEL
1 stop21h 35m
Scoot
Deal found 8/5$728
Thu 29/1014:20
SYD
-
USM
1 stop32h 30m
Scoot
Thu 5/1118:05
USM
-
SYD
1 stop20h 45m
Scoot
Deal found 9/5$733
Mon 12/1014:00
SYD
-
USM
1 stop32h 50m
Scoot
Tue 20/1019:45
USM
-
SYD
1 stop20h 35m
Scoot
Deal found 7/5$737
Thu 10/905:35
PER
-
USM
2 stops12h 20m
Multiple Airlines
Mon 14/917:55
USM
-
PER
1 stop26h 50m
Multiple Airlines
Deal found 4/5$742

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 9 May 2026.

Round-trip from

$666

One-way from

$299

Popular in

December

Cheapest in

October

Average price

$1,122
Scoot
  • Scoot
  • 5/11-15/11
  • 2 total stops
  • 30h 55m total
  • Australia to Ko Samui
Search Deals
Scoot
  • Scoot
  • 1/8
  • 1 total stop
  • 14h 15m total
  • Australia to Ko Samui
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($247 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 9 May 2026.
Use the filters below to find and compare flights from Australia to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 8/6

13:00-18:50

1 stop32h 50m

Ko Samui

Sun 21/6

08:40-19:20

1 stop31h 40m

$806

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Sun 13/9

21:35-18:50

1 stop24h 15m

Ko Samui

Sun 20/9

08:40-20:20

1 stop32h 40m

$865

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Tue 2/6

20:35-18:50

1 stop25h 15m

Ko Samui

Tue 9/6

12:30-19:20

2 stops27h 50m

$940

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sun 23/8

20:35-07:45

1 stop14h 10m

Ko Samui

Wed 26/8

18:15-19:20

1 stop22h 05m

$948

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Sat 17/10

22:35-16:55

3 stops22h 20m

Ko Samui

Sat 24/10

18:15-11:55

1 stop13h 40m

$968

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 26/8

23:15-17:20

2 stops19h 05m

Ko Samui

Mon 31/8

09:15-04:20

2 stops18h 05m

$990

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 24/5

07:30-20:25

1 stop13h 55m

Ko Samui

Tue 2/6

18:15-17:10

1 stop21h 55m

$1,002

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 25/6

16:30-18:50

2 stops27h 20m

Ko Samui

Fri 3/7

15:25-04:20

2 stops35h 55m

$1,009

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 27/10

05:35-18:50

1 stop14h 15m

Ko Samui

Wed 28/10

12:00-04:15

1 stop15h 15m

$1,033

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 2/11

14:20-08:00

1 stop21h 40m

Ko Samui

Thu 5/11

18:05-18:50

1 stop20h 45m

$1,103

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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

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

Booking 81 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.

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

Currently, September is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $177). Flying from Australia to Ko Samui in January is currently the most expensive (average of $2,505). 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 9 May 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
1,511 reviews
Check prices

Boarding

8.3

Overall

8.2

Crew

8.6

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Singapore Airlines
8.2
Very Good
1,511 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Boarding

8.3

Overall

8.2

Crew

8.6

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Bangkok Airways
8.1
Very Good
127 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Boarding

8.3

Overall

8.2

Crew

8.6

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Thai Airways
7.9
Good
401 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Boarding

8.3

Overall

8.2

Crew

8.6

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Qantas Airways
7.5
Good
1,034 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Boarding

8.3

Overall

8.2

Crew

8.6

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Scoot
6.7
Okay
326 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Boarding

8.3

Overall

8.2

Crew

8.6

Entertainment

8.0

Comfort

8.0

Food

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

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 $1,536, Scoot can have you in Ko Samui from Australia in 25h 15m. 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 $244. Singapore Airlines flights start at $478 while deals on Thai Airways start at $545 one-way.

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

    While some choose either Sydney Kingsford Smith - 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, September is the cheapest month in which you can book a flight from Australia to Ko Samui (average of $177). Flying from Australia to Ko Samui in January is currently the most expensive (average of $2,505). 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 9 May 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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$445Average$788FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$860Average$1,340FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$876Average$1,266FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Bangkok AirwaysCheapest$1,179Average$1,428FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Thai AirwaysCheapest$1,214Average$1,379FlexibilityNo 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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