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Ko Samui

$479+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
Apr 1 — Apr 81
Tue 4/1
Tue 4/8
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 March 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$522
(Booking.com)

One-way from

$479
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$682
Provider with most accurate pricing for Sydney Kingsford Smith-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Ko Samui flights.
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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. 16% potential increase in price ($152 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 27, 2025.

This Booking.com deal was found by Cheapflights users on 3/26. 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.
Sat 5/1012:50 pmSYD - USM
1 stop22h 00mScoot
Sat 5/178:45 amUSM - SYD
1 stop23h 50mScoot
Deal found 3/26$522
This Mytrip deal was found by Cheapflights users on 3/26. 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.
Sat 5/109:15 pmSYD - USM
2 stops19h 40mMultiple Airlines
Sat 5/178:00 amUSM - SYD
2 stops20h 50mMultiple Airlines
Deal found 3/26$531
This Singapore Airlines deal was found by Cheapflights users on 3/24. 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.
Sun 9/286:05 pmSYD - USM
1 stop16h 45mSingapore Airlines
Fri 10/178:45 amUSM - SYD
1 stop18h 10mSingapore Airlines
Deal found 3/24$850
This China Airlines deal was found by Cheapflights users on 3/24. 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.
Mon 9/2910:10 pmSYD - USM
2 stops25h 20mChina Airlines
Sun 10/192:00 pmUSM - SYD
2 stops17h 45mChina Airlines
Deal found 3/24$881
This Cathay Pacific deal was found by Cheapflights users on 3/24. 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.
Sat 10/49:50 pmSYD - USM
1 stop23h 45mCathay Pacific
Thu 10/163:30 pmUSM - SYD
2 stops16h 20mCathay Pacific
Deal found 3/24$1,004
This British Airways deal was found by Cheapflights users on 3/26. 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.
Sat 12/204:20 pmSYD - USM
1 stop29h 55mBritish Airways
Sun 1/41:25 pmUSM - SYD
1 stop13h 30mBritish Airways
Deal found 3/26$1,680
This Qantas Airways deal was found by Cheapflights users on 3/25. 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.
Sun 8/310:20 amSYD - USM
1 stop13h 50mQantas Airways
Sun 8/104:25 pmUSM - SYD
1 stop11h 15mQantas Airways
Deal found 3/25$2,437
This Vietnam Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 6/2610:15 amSYD - USM
2 stops38h 20mVietnam Airlines
Sun 7/68:00 amUSM - SYD
2 stops21h 15mVietnam Airlines
Deal found 3/25$3,577

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 March 27, 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

Sat 5/10

12:50 pm-7:50 am

1 stop22h 00m

Ko Samui

Sat 5/17

8:45 am-11:35 am

1 stop23h 50m

$522

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sat 5/10

9:15 pm-1:55 pm

2 stops19h 40m

Ko Samui

Sat 5/17

8:00 am-7:50 am

2 stops20h 50m

$531

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Wed 5/21

10:10 pm-12:45 pm

2 stops17h 35m

Ko Samui

Wed 5/28

2:35 pm-10:45 am

2 stops17h 10m

$882

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sat 5/10

7:40 am-9:35 pm

2 stops16h 55m

Ko Samui

Sat 5/17

8:00 am-11:25 am

3 stops24h 25m

$1,323

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sun 8/3

10:20 am-9:10 pm

1 stop13h 50m

Ko Samui

Sun 8/10

4:25 pm-6:40 am

1 stop11h 15m

$2,437

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Thu 6/26

10:15 am-9:35 pm

2 stops38h 20m

Ko Samui

Sun 7/6

8:00 am-8:15 am

2 stops21h 15m

$3,577

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 4/7

6:25 pm-11:10 am

3 stops43h 45m

$479

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 4/7

8:45 pm-7:50 am

1 stop14h 05m

$588

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Fri 4/18

10:10 pm-8:30 pm

2 stops25h 20m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Compare providers for flights from Sydney to Ko Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Ko Samui in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Ko Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 21, 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 56 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 March 27, 2025.
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Boarding

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
China Airlines
8.2
Very good
722 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Boarding

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Vietnam Airlines
7.6
Good
192 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Boarding

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Cathay Pacific
7.5
Good
837 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Boarding

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Qantas Airways
7.5
Good
811 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Boarding

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Malaysia Airlines
7.3
Good
251 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Food

7.8

Overall

8.2

Boarding

8.3

Comfort

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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 $522 on this airline. Additional options worth looking into are China Airlines and Cathay Pacific, starting at $882 and $1,323 round-trip. Scoot is currently priced 32% 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.
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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 March 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$401Average$639FlexibilityNo cancel feeOn-timeN/A
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