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Cheap flights from Australia to Ko Samui from $221

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
16 Apr — 23 Apr1
1 adult

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 11 April 2025.

Round-trip from

$630

One-way from

$221

Popular in

December

Cheapest in

August

Average price

$1,406
Scoot
  • Scoot
  • 7/6-28/6
  • 2 total stops
  • 32h 30m total
  • Australia to Ko Samui
Search Deals
Scoot
  • Scoot
  • 7/5
  • 1 total stop
  • 21h 35m total
  • Australia to Ko Samui
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($379 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 11 April 2025.

Sat 7/621:55PER - USM
1 stop21h 35mScoot
Sat 28/608:45USM - PER
1 stop10h 55mScoot
Deal found 9/4$630
Thu 29/521:55PER - USM
1 stop21h 35mMultiple Airlines
Fri 6/606:55USM - PER
2 stops35h 55mMultiple Airlines
Deal found 9/4$632
Mon 12/501:10PER - USM
1 stop18h 20mSingapore Airlines
Mon 19/512:45USM - PER
1 stop22h 45mSingapore Airlines
Deal found 10/4$790
Fri 9/521:30MEL - USM
1 stop16h 40mScoot
Fri 16/512:05USM - MEL
1 stop29h 10mScoot
Deal found 10/4$826
Thu 29/513:00MEL - USM
2 stops30h 55mMultiple Airlines
Sat 7/608:00USM - MEL
3 stops41h 00mMultiple Airlines
Deal found 10/4$827
Tue 6/508:45ADL - USM
2 stops36h 15mMultiple Airlines
Wed 21/519:25USM - ADL
2 stops19h 20mMultiple Airlines
Deal found 9/4$868
Wed 28/502:10PER - USM
2 stops15h 25mMalaysia Airlines
Fri 6/608:00USM - PER
2 stops16h 10mMalaysia Airlines
Deal found 9/4$1,065
Sat 10/520:45SYD - USM
1 stop14h 05mScoot
Mon 2/608:45USM - SYD
1 stop23h 50mScoot
Deal found 10/4$1,071
Wed 25/614:25SYD - USM
1 stop26h 30mMultiple Airlines
Mon 30/615:25USM - SYD
1 stop15h 45mMultiple Airlines
Deal found 10/4$1,100
Wed 3/918:10BNE - USM
1 stop16h 40mSingapore Airlines
Wed 24/912:05USM - BNE
1 stop15h 50mSingapore Airlines
Deal found 10/4$1,158
Sat 10/515:00SYD - USM
1 stop19h 50mSingapore Airlines
Mon 2/608:45USM - SYD
1 stop18h 10mSingapore Airlines
Deal found 10/4$1,173
Mon 6/1000:35MEL - USM
1 stop11h 15mSingapore Airlines
Fri 17/1012:05USM - MEL
1 stop13h 15mSingapore Airlines
Deal found 10/4$1,255

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 11 April 2025.
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

Sat 7/6

21:55-18:30

1 stop21h 35m

Ko Samui

Sat 28/6

08:45-20:40

1 stop10h 55m

$630

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 29/5

21:55-18:30

1 stop21h 35m

Ko Samui

Fri 6/6

06:55-19:50

2 stops35h 55m

$632

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 12/5

01:10-18:30

1 stop18h 20m

Ko Samui

Mon 19/5

12:45-12:30

1 stop22h 45m

$790

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Fri 9/5

21:30-11:10

1 stop16h 40m

Ko Samui

Fri 16/5

12:05-20:15

1 stop29h 10m

$826

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Thu 29/5

13:00-16:55

2 stops30h 55m

Ko Samui

Sat 7/6

08:00-04:00

3 stops41h 00m

$827

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sat 24/5

12:50-18:30

2 stops32h 40m

Ko Samui

Sat 31/5

07:00-11:35

2 stops25h 35m

$830

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Wed 7/5

12:50-18:30

1 stop32h 40m

Ko Samui

Sun 18/5

19:25-11:35

1 stop13h 10m

$863

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Tue 10/6

12:15-18:30

2 stops32h 45m

Ko Samui

Wed 18/6

19:25-21:05

2 stops23h 10m

$911

BrisbaneKo Samui

BNE - USM

BNEUSM

Brisbane

Wed 21/5

06:30-18:00

3 stops38h 30m

Ko Samui

Wed 28/5

20:50-09:30

1 stop33h 40m

$1,003

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 28/5

02:10-16:35

2 stops15h 25m

Ko Samui

Fri 6/6

08:00-01:10

2 stops16h 10m

$1,065

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 42 results
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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?

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 11 April 2025.

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.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

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.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

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).

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 11 April 2025.
Read reviews from past customers who have flown China Airlines, Singapore Airlines and Bangkok Airways from Australia to Ko Samui. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.2
Very Good
726 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
China Airlines
8.2
Very Good
726 reviews
China Airlines
8.2
Very Good
726 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Singapore Airlines
8.1
Very Good
1,288 reviews
China Airlines
8.2
Very Good
726 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Bangkok Airways
7.9
Good
109 reviews
China Airlines
8.2
Very Good
726 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Vietnam Airlines
7.6
Good
194 reviews
China Airlines
8.2
Very Good
726 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Cathay Pacific
7.5
Good
844 reviews
China Airlines
8.2
Very Good
726 reviews
Check prices

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Boarding

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

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.

  • 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 $221. Singapore Airlines flights start at $667 while deals on Vietnam Airlines start at $974 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, 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

Travelling to a place near Australia?

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

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Alternative routes for Australia to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Adelaide to Ko Samui flights

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 11 April 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$553Average$890FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$857Average$1,351FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Bangkok AirwaysCheapest$1,178Average$1,348FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Thai AirwaysCheapest$1,182Average$1,487FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Qantas AirwaysCheapest$1,323Average$2,316FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

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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.

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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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