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Ko Samui

$230+ Cheap flights from Sydney (SYD) to Ko Samui (USM)

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Sydney to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$529
(Booking.com)

One-way from

$230
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$722
From Sydney Kingsford Smith to Ko Samui
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One-way flight from Sydney Kingsford Smith to Ko Samui
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Highest demand for flights based on searches. 15% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Sydney to Ko Samui

Cheapest flights from Sydney to Ko Samui
Explore the most affordable flight options available from Sydney to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/238:45 pmSYD - USM
1 stop14h 05mScoot
mié. 7/308:45 amUSM - SYD
1 stop31h 45mScoot
Deal found 6/10$529
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/2312:50 pmSYD - USM
1 stop32h 40mMultiple Airlines
mié. 7/308:45 amUSM - SYD
3 stops32h 15mMultiple Airlines
Deal found 6/10$544
This British Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/92:40 pmSYD - USM
1 stop33h 30mBritish Airways
dom. 7/271:30 pmUSM - SYD
1 stop12h 50mBritish Airways
Deal found 6/10$1,102
This Singapore Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/76:05 pmSYD - USM
1 stop27h 25mSingapore Airlines
sáb. 8/165:40 pmUSM - SYD
1 stop20h 05mSingapore Airlines
Deal found 6/12$1,168
This Vietnam Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/22:15 pmSYD - USM
2 stops33h 55mVietnam Airlines
jue. 8/218:20 amUSM - SYD
2 stops20h 55mVietnam Airlines
Deal found 6/12$1,237
This Qantas Airways deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/37:50 pmSYD - USM
2 stops28h 20mQantas Airways
jue. 8/218:20 amUSM - SYD
1 stop17h 50mQantas Airways
Deal found 6/12$1,429
This Cathay Pacific deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/77:40 amSYD - USM
2 stops16h 55mCathay Pacific
mié. 7/3010:55 amUSM - SYD
1 stop30h 15mCathay Pacific
Deal found 6/10$1,558
This Malaysia Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/110:10 pmSYD - USM
2 stops25h 20mMalaysia Airlines
mié. 7/163:30 pmUSM - SYD
2 stops15h 30mMalaysia Airlines
Deal found 6/12$1,647
This China Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/410:10 pmSYD - USM
2 stops37h 25mChina Airlines
jue. 7/178:45 amUSM - SYD
2 stops23h 00mChina Airlines
Deal found 6/12$1,854
This Philippine Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/610:10 amSYD - USM
2 stops25h 05mPhilippine Airlines
jue. 8/216:55 pmUSM - SYD
2 stops34h 05mPhilippine Airlines
Deal found 6/12$2,584

Cheapflights Fare Finder

Customize your flight search to find flights from Sydney 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 2,558,603 searches. Data last updated junio 12, 2025.
Use the filters below to find and compare flights from Sydney to Ko Samui that are best for you.

Fly from

Sydney

Fly to

Ko Samui

Route

Depart

Return

Price

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

mié. 7/23

8:45 pm-7:50 am

1 stop14h 05m

Ko Samui

mié. 7/30

8:45 am-7:30 pm

1 stop31h 45m

$529

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

mié. 7/23

12:50 pm-6:30 pm

1 stop32h 40m

Ko Samui

mié. 7/30

8:45 am-8:00 pm

3 stops32h 15m

$544

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

jue. 8/7

6:05 pm-6:30 pm

1 stop27h 25m

Ko Samui

vie. 8/22

5:40 pm-10:25 am

1 stop13h 45m

$1,044

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

mié. 7/9

2:40 pm-9:10 pm

1 stop33h 30m

Ko Samui

dom. 7/27

1:30 pm-5:20 am

1 stop12h 50m

$1,102

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

sáb. 8/2

2:15 pm-9:10 pm

2 stops33h 55m

Ko Samui

jue. 8/21

8:20 am-8:15 am

2 stops20h 55m

$1,237

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

dom. 8/3

7:50 pm-9:10 pm

2 stops28h 20m

Ko Samui

jue. 8/21

8:20 am-5:10 am

1 stop17h 50m

$1,429

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

lun. 7/7

7:40 am-9:35 pm

2 stops16h 55m

Ko Samui

mié. 7/30

10:55 am-8:10 pm

1 stop30h 15m

$1,558

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

mar. 7/1

10:10 pm-8:30 pm

2 stops25h 20m

Ko Samui

mié. 7/16

3:30 pm-10:00 am

2 stops15h 30m

$1,647

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

vie. 7/4

10:10 pm-8:35 am

2 stops37h 25m

Ko Samui

jue. 7/17

8:45 am-10:45 am

2 stops23h 00m

$1,854

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

mié. 8/6

10:10 am-8:15 am

2 stops25h 05m

Ko Samui

jue. 8/21

6:55 pm-8:00 am

2 stops34h 05m

$2,584

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 12 results
1
2

Best time to book a flight from Sydney to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Sydney with our price prediction graph.
Estimated round-trip 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 Sydney to Ko Samui

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

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Ko Samui. Price data was last updated on June 9, 2025.

The price you pay for your flight from Sydney to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 25 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.

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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

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 junio 12, 2025.
Read through reviews of airlines operating flights from Sydney to Ko Samui, such as China Airlines, Singapore Airlines and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
738 reviews

Crew

8.5

Overall

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

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
8.3
Very good
738 reviews
China Airlines
8.3
Very good
738 reviews

Crew

8.5

Overall

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

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
1,302 reviews
China Airlines
8.3
Very good
738 reviews

Crew

8.5

Overall

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

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
7.6
Good
892 reviews
China Airlines
8.3
Very good
738 reviews

Crew

8.5

Overall

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

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
Qantas Airways
7.5
Good
854 reviews
China Airlines
8.3
Very good
738 reviews

Crew

8.5

Overall

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

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
7.5
Good
194 reviews
China Airlines
8.3
Very good
738 reviews

Crew

8.5

Overall

8.3

Food

7.8

Comfort

8.0

Entertainment

8.0

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 Sydney 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 are the cheapest airlines flying from Sydney to Ko Samui round-trip?

    Our cheapest airline available from Sydney to Ko Samui is Scoot. Our recent data shows that you can find tickets from as low as $529 on this airline. Additional options worth looking into are Singapore Airlines and British Airways, starting at $1,044 and $1,102 round-trip. Scoot is currently priced 29% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from Sydney to Ko Samui?

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

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

    Yes. Cheapflights offers flight deals from Sydney 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.

See more FAQs

Traveling to a place near Sydney?

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

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Alternative routes for Sydney to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Suvarnabhumi flights
Sydney to Phuket City flights
Sydney to Chiang Mai flights

Top airline flying from Sydney to Ko Samui

Discover the top airline that operate flights from Sydney 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 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$414Average$643FlexibilityNo cancel feeOn-timeN/A

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