SYD - USM

$278 Find Cheap Flights from Sydney to Ko Samui - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Ko Samui departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$574
Typical prices: $619-$1,001
Scoot
Fri 9/11Fri 9/18
SYD - USM • 1 stop
Cheapest one-way
$278
Typical prices: $236-$261
Scoot
Sun 11/1
SYD - USM • 1 stop
Top airlines
Scoot
Cheapest • from $574 (round-trip)
Scoot
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sydney and Ko Samui. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 25% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Ko Samui (SYD-USM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Ko Samui that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sydney to Ko Samui

Fri, Sep 11 - Fri, Sep 18
Scoot Logo
8:35 pm - 5:20 pm
SYD
-
USM
23h 45m
1 stop
Scoot Logo
7:45 pm - 11:45 am
USM
-
SYD
13h 00m
1 stop
$574Scoot
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
9:45 am - 8:25 am
SYD
-
USM
25h 40m
2 stops
Multiple Airlines Logo
7:45 pm - 11:45 am
USM
-
SYD
13h 00m
1 stop
$584Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
8:35 pm - 8:25 pm
SYD
-
USM
26h 50m
2 stops
Multiple Airlines Logo
12:30 pm - 11:45 am
USM
-
SYD
20h 15m
2 stops
$586Multiple Airlines
Sat, Aug 1 - Thu, Aug 13
Scoot Logo
8:35 pm - 6:50 pm
SYD
-
USM
25h 15m
1 stop
Scoot Logo
7:45 pm - 11:45 am
USM
-
SYD
13h 00m
1 stop
$604Scoot
Sat, Aug 1 - Fri, Aug 21
Scoot Logo
8:35 pm - 6:50 pm
SYD
-
USM
25h 15m
1 stop
Scoot Logo
7:45 pm - 7:20 pm
USM
-
SYD
20h 35m
1 stop
$623Scoot
Sat, Aug 1 - Thu, Aug 13
Multiple Airlines Logo
8:35 pm - 8:25 pm
SYD
-
USM
26h 50m
2 stops
Multiple Airlines Logo
6:15 pm - 7:20 pm
USM
-
SYD
22h 05m
1 stop
$666Multiple Airlines
Sun, Aug 2 - Tue, Aug 11
Scoot Logo
8:35 pm - 6:50 pm
SYD
-
USM
25h 15m
1 stop
Scoot Logo
7:45 pm - 11:45 am
USM
-
SYD
13h 00m
1 stop
$668Scoot
Sat, Aug 1 - Fri, Aug 21
Multiple Airlines Logo
8:35 pm - 6:50 pm
SYD
-
USM
25h 15m
1 stop
Multiple Airlines Logo
9:15 am - 7:20 pm
USM
-
SYD
31h 05m
2 stops
$672Multiple Airlines
Sat, Aug 1 - Fri, Aug 21
Multiple Airlines Logo
8:35 pm - 8:25 pm
SYD
-
USM
26h 50m
2 stops
Multiple Airlines Logo
12:30 pm - 7:20 pm
USM
-
SYD
27h 50m
2 stops
$712Multiple Airlines
Sun, Aug 2 - Tue, Aug 11
Multiple Airlines Logo
8:35 pm - 6:50 pm
SYD
-
USM
25h 15m
1 stop
Multiple Airlines Logo
8:20 am - 11:45 am
USM
-
SYD
24h 25m
2 stops
$717Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Ko Samui flights

Get data-powered insights and trends into flights from Sydney to Ko Samui to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sydney to Ko Samui?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Ko Samui departing in September.

What is the cheapest month to fly from Sydney to Ko Samui?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Ko Samui, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Ko Samui is March, where tickets cost $583 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,061 and $953 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Ko Samui, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sydney to Ko Samui, you should book around 5 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$278
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 36% increase in price.
Flight from Sydney to Ko Samui

When to book flights from Sydney to Ko Samui

Are your dates flexible? Find out the best times to travel from Sydney to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Ko Samui

  • What is the cabin luggage allowance for Economy flights to Koh Samui (USM) from Sydney (SYD)?

    Your allowable cabin baggage will depend on the airline you book with. For example, Qantas and Thai Airways generally offer a 7 kg carry-on bag plus a small personal item, such as a handbag or laptop bag. Bangkok Airways usually offers a 5 kg carry-on bag and a personal item. Generally speaking, your personal item should be small enough to fit under the seat in front of you.

  • What are the stopover options between Sydney and Koh Samui?

    You’ll generally have at least one stopover before you reach Koh Samui, and some of the most common destinations include Bangkok (BKK), Ho Chi Minh City (SGN), Hong Kong (HKG) and Singapore (SIN). You’ll find plenty of itineraries with carriers like Qantas, Thai Airways and Bangkok Airways that have short stopovers, reducing your overall transit time. However, if you prefer to take a bit of time to stretch your legs between flights, itineraries with longer stops are also available.

  • What is the cheapest flight from Sydney to Ko Samui?

    In the last 5 days, the lowest price for a flight from Sydney to Ko Samui was $278 for a one-way ticket and $574 for a round-trip.

  • Do I need a passport to fly between Sydney and Ko Samui?

    A passport is required to fly from Sydney to Ko Samui.

  • Which airports will I be using when flying from Sydney to Ko Samui?

    Sydney and Ko Samui are both served by 1 main airport. You will leave Sydney from Sydney Kingsford Smith and will be arriving at Ko Samui.

  • Which aircraft models fly most regularly from Sydney to Ko Samui?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Sydney to Ko Samui?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Ko Samui.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Ko Samui?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Ko Samui?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Sydney with another airline. Booking your flights between Sydney and USM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Ko Samui?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Sydney to Ko Samui

  • Sydney Airport (SYD) is a hub for Australia’s three major airlines – Qantas, Virgin and Jetstar – all of which operate both domestic and international flights. Samui International Airport (USM) features a unique, open-air layout and is a focus city for Bangkok Airways.
  • If you’d like to have a checked bag included in your fare, consider full-service carriers like Qantas, Bangkok Airways and Thai Airways, which generally offer a free 30 kg checked bag to Economy passengers. Note that low-cost carriers like Scoot often don’t include checked baggage in the Basic Economy fare.
  • If you value the additional space and Priority service of Premium Economy, look for flights with Qantas, Bangkok Airways, Singapore Airlines and Thai Airways. Note that some fares are mixed, meaning you may have a Premium Economy seat on one leg but not on another. If you want to enjoy the Premium experience all the way, you can check whether an itinerary is mixed or completely Premium when searching for flights through KAYAK.

Reviews of the top airline flying from Sydney to Ko Samui

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Ko Samui. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
ScootOverall score based on 325 reviews
7.4Crew
6.9Boarding
5.3Entertainment
5.8Food
6.5Comfort
Airline reviews

3 hours delay ,we changed plane after boarding and waiting inside

2.0 MediocreANTONIOS, Mar 2026
SIN - BKK
Read more Scoot reviews

3 hours delay ,we changed plane after boarding and waiting inside

Apart from the staff at the airport who were amazing the rest of the experience with scoot was disgusting a very basic flight packed and uncomfortable no consideration to a disabled traveller. And even worse from Singapore to Vienna. All about the money. Not even a complementary coffee or juice. From the airline. The staff at the airport didn't look at me as been disabled and no help not even a wheelchair was offered. The food on the plane was cheap and tasteless and expensive no entertainment on plane and WiFi which had to be paid for was intermittent at best.

Uncoordinated boarding, seat comfort is terrible, even toilet is so small that overweight people wouldn't fit in. Baggage scam with additional fees. Stay away from this airline.

Food & lower the prices. Look at Air Asia food look better & affordable

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

Was on scoot plus. The only good thing about the flight was the spacious seats. Tables and armrests were extremely dirty Food: bad Entertainment: non existent Wifi: unable to connect, then was painfully slow that we couldn’t even send messages Good thing we had a night flight, so we just slept throughout.

We were delayed, but there was never any update given. Everyone was standing at the gate as boarding was supposed to commence at 13:10 for a 13:55 flight. We didn't actually start getting on the shuttles to the plane, until after 14:00. No updates, no information given at all.

It would have been nice if I could have actually travelled to Perth. I injured my back and was unable to fly. Scoot refused to change my ticket saying it was not flexible. However I purchased the ticket through MyTrip and it was flexible. MyTrip wanted to charge me an extra $271 to change to a ticket that was only listed as $217. Never again will I fly Scoot or book through MyTrip

Me and my Partner were in seats 6A and 6B. (Which we paid a premium for). Unfortunately the person is seat 6C was large and because of his size my Partner was squashed to the point of discomfort and unable to sit properly. We requested to be moved to some empty seats and two hours into the flight the crew moved us. Perhaps it’s time airlines began checking passenger sizes to ensure they don’t encroach into fellow passengers seating space!

Extra luggage after you purchase 1 is gonna jacked u up to 800sgd which is so up to the hook... you could buy 3 round trips ticket on that price.. im so disappointed.. im not gonna choose this airline anymore.. horrible experience...

Everything you need to know for your flight from Sydney to Ko Samui

Information on your arrival and departure airports

Sydney (SYD)
Ko Samui (USM)