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Cheap flights from Sydney to Ko Samui from $346

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Ko Samui departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Sydney to Ko Samui

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Sydney to Ko Samui.
Scoot Logo
20:45 - 18:30SYD-USM
24h 45m1 stop
Scoot Logo
08:45 - 19:30USM-SYD
31h 45m1 stop
$626Scoot
Find Deal
Mon, 12 May - Mon, 26 May
Scoot Logo
20:45 - 18:30SYD-USM
24h 45m1 stop
Scoot Logo
08:45 - 19:30USM-SYD
31h 45m1 stop
$627Scoot
Find Deal
Mon, 12 May - Mon, 19 May
Scoot Logo
20:45 - 18:30SYD-USM
24h 45m1 stop
Scoot Logo
19:25 - 11:35USM-SYD
13h 10m1 stop
$651Scoot
Find Deal
Tue, 10 Jun - Fri, 20 Jun
Scoot Logo
12:50 - 18:30SYD-USM
32h 40m1 stop
Scoot Logo
08:45 - 19:30USM-SYD
31h 45m1 stop
$696Scoot
Find Deal
Mon, 28 Apr - Mon, 12 May
 Logo
20:45 - 18:30SYD-USM
24h 45m1 stop
 Logo
12:30 - 11:35USM-SYD
20h 05m2 stops
Mon, 12 May - Mon, 26 May
 Logo
20:45 - 18:30SYD-USM
24h 45m1 stop
 Logo
15:25 - 07:50USM-SYD
37h 25m3 stops
Mon, 12 May - Mon, 19 May
China Airlines Logo
22:10 - 12:45SYD-USM
17h 35m2 stops
China Airlines Logo
14:35 - 10:45USM-SYD
17h 10m2 stops
$1,479China Airlines
Find Deal
Wed, 21 May - Wed, 28 May
Qantas Airways Logo
14:50 - 21:10SYD-USM
33h 20m1 stop
Qantas Airways Logo
13:30 - 06:40USM-SYD
14h 10m1 stop
$2,246Qantas Airways
Find Deal
Sun, 20 Jul - Sun, 27 Jul
Qantas Airways Logo
19:55 - 21:10SYD-USM
28h 15m2 stops
Qantas Airways Logo
16:25 - 06:40USM-SYD
11h 15m1 stop
$2,303Qantas Airways
Find Deal
Sun, 20 Jul - Sun, 27 Jul
Singapore Airlines Logo
07:55 - 18:30SYD-USM
13h 35m1 stop
Singapore Airlines Logo
19:25 - 10:25USM-SYD
12h 00m1 stop
$2,637Singapore Airlines
Find Deal
Tue, 10 Jun - Fri, 20 Jun

Scoot flights from Sydney to Ko Samui

Our best Scoot deals on Sydney to Ko Samui flight tickets
Scoot
12 May
SYD20:45Sydney Kingsford Smith
24h 45m
1 stop
USM18:30Ko Samui
26 May
USM08:45Ko Samui
31h 45m
1 stop
SYD19:30Sydney Kingsford Smith
Scoot
12 May
SYD20:45Sydney Kingsford Smith
24h 45m
1 stop
USM18:30Ko Samui
19 May
USM08:45Ko Samui
31h 45m
1 stop
SYD19:30Sydney Kingsford Smith
Scoot
10 June
SYD20:45Sydney Kingsford Smith
24h 45m
1 stop
USM18:30Ko Samui
20 June
USM19:25Ko Samui
13h 10m
1 stop
SYD11:35Sydney Kingsford Smith

Qantas Airways flights from Sydney to Ko Samui

Our best Qantas Airways deals on Sydney to Ko Samui flight tickets
Qantas Airways
20 July
SYD14:50Sydney Kingsford Smith
33h 20m
1 stop
USM21:10Ko Samui
27 July
USM13:30Ko Samui
14h 10m
1 stop
SYD06:40Sydney Kingsford Smith
Qantas Airways
20 July
SYD19:55Sydney Kingsford Smith
28h 15m
2 stops
USM21:10Ko Samui
27 July
USM16:25Ko Samui
11h 15m
1 stop
SYD06:40Sydney Kingsford Smith
Qantas Airways
26 June
SYD08:20Sydney Kingsford Smith
15h 50m
2 stops
USM21:10Ko Samui
6 July
USM16:25Ko Samui
11h 15m
1 stop
SYD06:40Sydney Kingsford Smith

See travel insights to Ko Samui from

How to get the cheapest flight ticket from Sydney to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Sydney and Ko Samui?

What is the cheapest month to fly to Ko Samui?

The month of August is, on average, the cheapest month to fly to Ko Samui from Sydney, with most prices found around $947. If you aren’t able to travel during the month of August, then book flights to Ko Samui from Sydney during March instead. Flights to Ko Samui in March, while not as cheap as those in August, still average around $1,133.

What is the cheapest day to depart on your flight to Ko Samui?

According to our data, Tuesday is the cheapest day to fly to Ko Samui from Sydney. The lowest ticket price found for a Tuesday departure recently was $1,226. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Sydney to Ko Samui for around $1,408.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our data shows that the cheapest Sydney to Ko Samui flights are usually those with departure times in the evening. Our users have found flights to Ko Samui in the evening for as low as $1,032. Flights in the morning are often more expensive, with an average ticket price of $1,443.

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

You are more likely to see cheaper flights to Ko Samui from Sydney when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $1,295 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Sydney for as low as $1,057 on momondo.

How have Sydney to Ko Samui flight prices changed over time?

As of April 2025, prices for Sydney to Ko Samui flights are approximately 25% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sydney to Ko Samui (SYD to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Ko Samui

Best price found

$346

Fastest flight time

11h 20m

Direct flights

None

Airports in Ko Samui

1 airport
The best one-way flight to Ko Samui from Sydney in the past 72 hours is $346. The best return flight deal from Sydney to Ko Samui found on momondo in the last 72 hours is $626.
The fastest flight from Sydney to Ko Samui takes 11h 20m
There are no direct flights from Sydney to Ko Samui. Popular non-direct route for this connection is Sydney Kingsford Smith Airport - Ko Samui Airport.
There is 1 airport near Ko Samui: Ko Samui (USM)

  • How far is Sydney Kingsford Smith to Ko Samui by plane?

    The distance between Sydney Kingsford Smith and Ko Samui is about 7231.6 km. By plane, this route typically takes 11h 20m.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Ko Samui Airport?

    Prices for flights from Sydney Kingsford Smith Airport to Ko Samui Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Ko Samui Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Ko Samui Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Sydney Kingsford Smith Airport to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sydney to Ko Samui?


Best airlines flying from Sydney to Ko Samui

Compare and see reviews for airlines that fly from Sydney to Ko Samui with momondo
Airline
Rating
Free cancellation
Price
ScootPriceFrom $720Free cancellationRating
6.7
303 reviews
Search Scoot flights
Singapore AirlinesPriceFrom $1,058Free cancellationRating
8.1
1,288 reviews
Search Singapore Airlines flights
Bangkok AirwaysPriceFrom $1,276Free cancellationRating
7.9
109 reviews
Search Bangkok Airways flights
Thai AirwaysPriceFrom $1,305Free cancellationRating
7.7
321 reviews
Search Thai Airways flights
Qantas AirwaysPriceFrom $1,760Free cancellationRating
7.5
817 reviews
Search Qantas Airways flights

Travelling to a place near Ko Samui?

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

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Ko Samui?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Ko Samui for you.

Can I find flights from Sydney to Ko Samui with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ko Samui from Sydney which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sydney to Ko Samui?

momondo provides multiple filters to help you find the best flight to Ko Samui from Sydney. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Sydney to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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