$352+ Cheap flights from Sydney (SYD) to Ko Samui (USM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — USM
Nov 30 — Dec 71
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Sydney to Ko Samui with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sydney to Ko Samui
Cheapest
Best
Last-minute
One-way
Cheapest flights from Sydney to Ko SamuiExplore 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 October 31, 2026.
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 October 31, 2026.
This Booking.com deal was found by Cheapflights users on 10/27. 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.
Fri 11/201:25 pm -
1 stop31h 45m
Wed 12/28:55 am -
1 stop29h 55m
Deal found 10/27![Scoot logo]()
$646
This Booking.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/131:25 pm -
1 stop31h 45m
Thu 11/268:55 am -
1 stop29h 55m
Deal found 10/29![Scoot logo]()
$657
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:10 pm -
2 stops32h 25m
Thu 11/268:55 am -
1 stop29h 55m
Deal found 10/29![Multiple Airlines logo]()
$703
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 am -
2 stops14h 35m
Wed 12/28:55 am -
1 stop23h 15m
Deal found 10/27![Multiple Airlines logo]()
$765
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 11/208:05 pm -
1 stop25h 05m
Thu 12/34:25 pm -
1 stop15h 45m
Deal found 10/27![Multiple Airlines logo]()
$866
This British Airways deal was found by Cheapflights users on 10/26. 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.
Wed 11/114:20 pm -
1 stop29h 55m
Sun 11/151:25 pm -
1 stop13h 30m
Deal found 10/26![British Airways logo]()
$946
This Scoot deal was found by Cheapflights users on 10/27. 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 Scoot is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:25 pm -
1 stop31h 45m
Sun 11/86:05 pm -
1 stop20h 45m
Deal found 10/27![Scoot logo]()
$1,016
Best flights from Sydney to Ko SamuiDiscover carefully curated flight deals from Sydney to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
Discover carefully curated flight deals from Sydney to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 11/207:55 am -
2 stops31h 00m
Wed 12/26:05 pm -
2 stops32h 25m
Deal found 10/27![Multiple Airlines logo]()
$827
This Qantas Airways deal was found by Cheapflights users on 10/26. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:30 am -
2 stops16h 35m
Sun 11/151:25 pm -
2 stops16h 05m
Deal found 10/26![Qantas Airways logo]()
$1,266
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Fri 11/137:55 am -
3 stops17h 10m
Thu 11/268:15 am -
2 stops23h 55m
Deal found 10/29![Multiple Airlines logo]()
$1,145
This Malaysia Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 2/176:05 am -
3 stops19h 15m
Sun 2/282:05 pm -
2 stops16h 15m
Deal found 10/28![Multiple Airlines logo]()
$1,323
This Malaysia Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 11/2010:15 pm -
2 stops19h 15m
Thu 12/31:45 pm -
2 stops16h 35m
Deal found 10/27![Multiple Airlines logo]()
$1,438
This Malaysia Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/197:45 pm -
3 stops21h 45m
Wed 12/22:05 pm -
2 stops16h 15m
Deal found 10/29![Multiple Airlines logo]()
$1,561
This Sichuan Airlines deal was found by Cheapflights users on 10/28. 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 Sichuan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/239:25 pm -
2 stops27h 25m
Wed 12/308:15 am -
2 stops26h 50m
Deal found 10/28![Multiple Airlines logo]()
$1,785
This Malaysia Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 1/66:05 am -
3 stops19h 15m
Wed 1/202:05 pm -
2 stops16h 15m
Deal found 10/28![Multiple Airlines logo]()
$1,858
This Qantas Airways deal was found by Cheapflights users on 10/31. 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.
Mon 1/188:35 am -
2 stops16h 30m
Mon 1/251:25 pm -
1 stop13h 10m
Deal found 10/31![Multiple Airlines logo]()
$1,868
Last-minute flights from Sydney to Ko SamuiDiscover last-minute flight deals from Sydney to Ko Samui. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from Sydney to Ko Samui. Data last updated October 31, 2026 and is based on user searches.
This Scoot deal was found by Cheapflights users on 10/27. 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 Scoot is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:25 pm -
1 stop31h 45m
Sun 11/86:05 pm -
1 stop20h 45m
Deal found 10/27![Scoot logo]()
$1,016
This British Airways deal was found by Cheapflights users on 10/26. 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.
Wed 11/114:20 pm -
1 stop29h 55m
Sun 11/151:25 pm -
1 stop13h 30m
Deal found 10/26![British Airways logo]()
$946
This Booking.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/131:25 pm -
1 stop31h 45m
Thu 11/268:55 am -
1 stop29h 55m
Deal found 10/29![Scoot logo]()
$657
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:10 pm -
2 stops32h 25m
Thu 11/268:55 am -
1 stop29h 55m
Deal found 10/29![Multiple Airlines logo]()
$703
This Booking.com deal was found by Cheapflights users on 10/27. 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.
Fri 11/201:25 pm -
1 stop31h 45m
Wed 12/28:55 am -
1 stop29h 55m
Deal found 10/27![Scoot logo]()
$646
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:35 am -
2 stops14h 35m
Wed 12/28:55 am -
1 stop23h 15m
Deal found 10/27![Multiple Airlines logo]()
$765
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 11/208:05 pm -
1 stop25h 05m
Thu 12/34:25 pm -
1 stop15h 45m
Deal found 10/27![Multiple Airlines logo]()
$866
One-way flights from Sydney to Ko SamuiSearch for one-way flight options from Sydney to Ko Samui. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
Search for one-way flight options from Sydney to Ko Samui. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/191:25 pm -
1 stop31h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Scoot logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:55 am -
2 stops28h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:10 pm -
2 stops28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$437
This Booking.com deal was found by Cheapflights users on 10/29. 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.
Tue 11/241:25 pm -
1 stop22h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Scoot logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/39:55 pm -
2 stops38h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$625
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Sun 1/38:05 pm -
1 stop15h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Scoot logo]()
$660
Find 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 October 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $468 (Booking.com) |
One-way from | $352 (Booking.com) |
Popular in | January |
Cheapest in | March |
Average price | $981 |
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 7,457,451 searches. Data last updated October 31, 2026.
Use the filters below to find and compare flights from Sydney to Ko Samui that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Thu 11/19
1:25 pm-5:10 pm
1 stop31h 45m
Ko Samui
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$352
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Tue 11/24
7:55 am-8:00 am
2 stops28h 05m
Ko Samui
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$421
Quickest round-trip
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Tue 11/24
1:25 pm-8:00 am
1 stop22h 35m
Ko Samui
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$446
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Thu 11/19
1:25 pm-10:40 am
3 stops25h 15m
Ko Samui
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$519
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Sun 1/3
9:55 pm-8:00 am
2 stops38h 05m
Ko Samui
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$625
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Fri 11/20
7:55 am-10:55 am
2 stops31h 00m
Ko Samui
Wed 12/2
6:05 pm-6:30 am
2 stops32h 25m
$827
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Fri 11/13
7:55 am-9:05 pm
3 stops17h 10m
Ko Samui
Thu 11/26
8:15 am-12:10 pm
2 stops23h 55m
$1,145
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Wed 11/11
8:30 am-9:05 pm
2 stops16h 35m
Ko Samui
Sun 11/15
1:25 pm-9:30 am
2 stops16h 05m
$1,266
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Wed 2/17
6:05 am-9:20 pm
3 stops19h 15m
Ko Samui
Sun 2/28
2:05 pm-10:20 am
2 stops16h 15m
$1,323
SydneyKo Samui
SYD Sydney Kingsford Smith - USM Ko Samui
SYDUSM
Sydney Kingsford Smith
Fri 11/20
10:15 pm-1:30 pm
2 stops19h 15m
Ko Samui
Thu 12/3
1:45 pm-10:20 am
2 stops16h 35m
$1,438
Showing 1-10 of 15 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
SYD-USM
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?
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 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Sydney to Ko Samui?
Currently, March is the cheapest month in which you can book a flight from Sydney to Ko Samui (average of $695). Flying from Sydney to Ko Samui in January is currently the most expensive (average of $1,148). 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.
How much does it cost to fly round-trip from Sydney to Ko Samui?
Airfare is below average for this route at the moment.
Sydney to Ko Samui flights typically cost between $606 and $901 in February.The cheapest round-trip price found within the last 5 days was $468 on Scoot (Feb 17-Feb 28).
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 October 31, 2026.
Get a feel of what it's like to fly with Scoot from Sydney 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.
Entertainment
5.2
Boarding
6.9
Food
5.8
Overall
6.7
Crew
7.4
Comfort
6.5
Reviews
1 / 20
4.0
OkayAnonymous,Sep 2026
ATH - SIN
Entertainment
5.2
Boarding
6.9
Food
5.8
Overall
6.7
Crew
7.4
Comfort
6.5
Reviews
1 / 20
4.0
OkayAnonymous,Sep 2026
ATH - SIN
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.
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsKo Pha Ngan
Ko Tao
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ko Samui flight routes
Other flight options
Other flights from Sydney
Popular flights
Alternative routes for Sydney to Ko Samui
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ko Samui by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Sydney to Ko Samui by cabin class
Find flights from Sydney to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ko Samui
Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 31, 2026.
Sydney and Ko Samui flights
Browse other Sydney and Ko Samui flight options. Last updated on October 31, 2026.
Other flights from Sydney
Browse through other flights departing from Sydney. Flights are based on user searches made on Cheapflights and were last updated on October 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$641 | Average$722 | FlexibilityNo cancel fee | On-timeN/A |