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Cheap flights from Sydney to Koh Samui from $329

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Sydney to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Koh 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 21 February 2025.

Round-trip from

$881

One-way from

$329

Popular in

December

Cheapest in

August

Average price

$1,130
Scoot
  • Scoot
  • 12/6-22/6
  • 3 total stops
  • 47h 00m total
  • Sydney to Koh Samui
Search Deals
Scoot
  • Scoot
  • 30/5
  • 1 total stop
  • 32h 40m total
  • Sydney to Koh Samui
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($413 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($92 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Sydney to Koh Samui

Cheapest flights from Sydney to Koh Samui
Explore the most affordable flight options available from Sydney to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Thu 12/620:45SYD - USM
2 stops23h 10mMultiple Airlines
Sun 22/608:45USM - SYD
1 stop23h 50mMultiple Airlines
Deal found 21/2$881
Sat 19/420:45SYD - USM
1 stop24h 45mScoot
Mon 28/408:45USM - SYD
1 stop31h 45mScoot
Deal found 20/2$974
Sat 10/518:05SYD - USM
1 stop16h 45mSingapore Airlines
Mon 2/608:45USM - SYD
1 stop29h 00mSingapore Airlines
Deal found 21/2$1,099
Wed 21/522:10SYD - USM
2 stops19h 35mMalaysia Airlines
Wed 28/515:50USM - SYD
2 stops15h 10mMalaysia Airlines
Deal found 20/2$1,375
Thu 12/622:10SYD - USM
2 stops17h 35mChina Airlines
Sun 22/614:00USM - SYD
2 stops17h 45mChina Airlines
Deal found 21/2$1,388
Sat 3/515:00SYD - USM
2 stops30h 35mCathay Pacific
Sat 10/507:00USM - SYD
2 stops24h 50mCathay Pacific
Deal found 19/2$1,594

Find flights from Sydney to Koh Samui within your budget

Customise your flight search to find flights from Sydney to Koh 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 21 February 2025.

Fly from

Sydney

Fly to

Koh Samui

Route

Depart

Return

Price

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Thu 12/6

20:45-16:55

2 stops23h 10m

Ko Samui

Sun 22/6

08:45-11:35

1 stop23h 50m

$881

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sat 19/4

20:45-18:30

1 stop24h 45m

Ko Samui

Mon 28/4

08:45-19:30

1 stop31h 45m

$974

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sat 10/5

18:05-07:50

1 stop16h 45m

Ko Samui

Mon 2/6

08:45-16:45

1 stop29h 00m

$1,099

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Wed 21/5

22:10-14:45

2 stops19h 35m

Ko Samui

Wed 28/5

15:50-10:00

2 stops15h 10m

$1,375

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Thu 12/6

22:10-12:45

2 stops17h 35m

Ko Samui

Sun 22/6

14:00-10:45

2 stops17h 45m

$1,388

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Sat 3/5

15:00-18:35

2 stops30h 35m

Ko Samui

Sat 10/5

07:00-10:50

2 stops24h 50m

$1,594

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Fri 30/5

12:50-18:30

1 stop32h 40m

$329

SydneyKoh Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Fri 30/5

12:20-18:30

2 stops33h 10m

$444

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Best time to book a flight from Sydney to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Sydney 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.

Travel insights for flights from Sydney to Koh Samui

Get recent, data-driven insights about flights from Sydney to Koh Samui including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Sydney to Koh Samui. Price data was last updated on 14 February 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Koh 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 Sydney to Koh Samui?

Currently, August is the cheapest month in which you can book a flight from Sydney to Koh Samui (average of $533). Flying from Sydney to Koh 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 SYD to USM?

Find hourly flight availability from Sydney to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

It’s optimal to fly from Sydney to Koh Samui in the evening. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Sydney to Koh Samui?

Use this chart to determine the cheapest time to fly return from Sydney to Koh Samui. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Sydney to Koh Samui flight should consider departing on Tuesday at midday when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Koh Samui by month

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

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 58.0 mm.

Temperature in Koh Samui by month

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

If weather is an important factor for your trip to Koh 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 Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated 21 February 2025.
China Airlines
8.2
Very Good
725 reviews
Check prices

Crew

8.5

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

China Airlines
8.2
Very Good
725 reviews
China Airlines
8.2
Very Good
725 reviews
Check prices

Crew

8.5

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Singapore Airlines
8.1
Very Good
1,297 reviews
China Airlines
8.2
Very Good
725 reviews
Check prices

Crew

8.5

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Cathay Pacific
7.5
Good
820 reviews
China Airlines
8.2
Very Good
725 reviews
Check prices

Crew

8.5

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Malaysia Airlines
7.4
Good
263 reviews
China Airlines
8.2
Very Good
725 reviews
Check prices

Crew

8.5

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Scoot
6.7
Okay
298 reviews
China Airlines
8.2
Very Good
725 reviews
Check prices

Crew

8.5

Overall

8.2

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Related info for your journey

Find useful and relevant information for your journey from Sydney to Koh 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 Koh Samui round-trip?

    According to our current data, Scoot ($974), Singapore Airlines ($1,099), and Malaysia Airlines ($1,375) offers the cheapest pricing from Sydney to Koh Samui. You may be able to fly from Sydney to Koh Samui for 22% less than the average price by searching for these airlines.

  • Where are the most common stopover locations when flying from Sydney to Koh Samui?

    Sydney to Koh Samui flights have a stopover in Singapore most of the time.

  • What are some popular things to do or see while on a stopover in Singapore?

    Sentosa, Merlion, and Boat Quay are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Boat Quay can be accessed by travelling approximately 21.6 km, 16.9 km, and 17.3 km, respectively from Singapore Changi. Those landing in Singapore looking to spend some time exploring during their stopover can hire a car for about $132 per day.

  • Where are the least popular stopover locations for Sydney to Koh Samui flights?

    Sydney to Koh Samui flights that have stopovers will least frequently stop in Bangkok.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to Koh 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 Sydney to Koh Samui?

    Currently, August is the cheapest month in which you can book a flight from Sydney to Koh Samui (average of $533). Flying from Sydney to Koh 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 Sydney?

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

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Fly from Sydney to Koh Samui on these airlines

Choose from the following airlines for your flight from Sydney to Koh Samui. Flights are based on user searches made on Cheapflights and were last updated on 21 February 2025.
Singapore Airlines flights from Sydney Kingsford Smith to Ko Samui
Bangkok Airways flights from Sydney Kingsford Smith to Ko Samui
Qantas Airways flights from Sydney Kingsford Smith to Ko Samui

Top 5 airlines flying from Sydney to Koh Samui

Discover the top 5 airlines that operate flights from Sydney to Koh 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$683Average$925FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$987Average$1,288FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Bangkok AirwaysCheapest$1,203Average$1,359FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Thai AirwaysCheapest$1,216Average$1,505FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Qantas AirwaysCheapest$1,709Average$2,176FlexibilityNo cancel feeOn-time74%
Search Qantas 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 Sydney to Koh Samui?

Cheapflights makes it easy to find Sydney to Koh Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Koh 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 Koh Samui from Sydney.

Can Cheapflights find flights from Sydney to Koh Samui with no change fees?

Certainly. Search results for flights to Koh Samui from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Sydney to Koh Samui become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Koh Samui from Sydney today and book when prices fit your budget.

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