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Cheap flights from Australia to Ko Samui from $270

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to Ko Samui departing on 21/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Australia to Ko Samui

Recent return flight deals from Australia to Ko Samui

Enter your travel dates to find the best prices.
Scoot Logo
05:35 - 17:10PER-USM
12h 35m1 stop
Scoot Logo
08:55 - 04:15USM-PER
18h 20m1 stop
$590Scoot
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Tue, 2 Dec - Fri, 12 Dec
Scoot Logo
05:35 - 17:10PER-USM
12h 35m1 stop
Scoot Logo
08:55 - 04:15USM-PER
18h 20m1 stop
$596Scoot
Find Deal
Sat, 7 Mar - Sat, 21 Mar
Multiple Airlines Logo
20:25 - 17:10PER-USM
21h 45m2 stops
Multiple Airlines Logo
08:55 - 04:15USM-PER
18h 20m1 stop
$720Multiple Airlines
Find Deal
Tue, 2 Dec - Fri, 12 Dec
Multiple Airlines Logo
18:25 - 07:50PER-USM
14h 25m1 stop
Multiple Airlines Logo
12:10 - 04:00USM-PER
14h 50m2 stops
$734Multiple Airlines
Find Deal
Thu, 16 Apr - Mon, 27 Apr
Qantas Airways Logo
11:05 - 21:10BNE-USM
13h 05m1 stop
Qantas Airways Logo
13:30 - 06:00USM-BNE
13h 30m1 stop
$1,140Qantas Airways
Find Deal
Thu, 23 Apr - Tue, 5 May
Qantas Airways Logo
11:05 - 18:15BNE-USM
34h 10m1 stop
Qantas Airways Logo
08:20 - 06:00USM-BNE
18h 40m1 stop
$1,142Qantas Airways
Find Deal
Thu, 23 Apr - Tue, 5 May
Singapore Airlines Logo
17:35 - 07:50ADL-USM
16h 45m1 stop
Singapore Airlines Logo
17:40 - 16:20USM-ADL
20h 10m1 stop
$1,307Singapore Airlines
Find Deal
Thu, 7 May - Fri, 15 May
Singapore Airlines Logo
17:35 - 07:50ADL-USM
16h 45m1 stop
Singapore Airlines Logo
19:25 - 16:20USM-ADL
18h 25m1 stop
$1,315Singapore Airlines
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Thu, 7 May - Fri, 15 May
Cathay Pacific Logo
11:35 - 19:35CNS-USM
35h 00m2 stops
Cathay Pacific Logo
11:40 - 16:50USM-CNS
50h 10m2 stops
$1,757Cathay Pacific
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Mon, 16 Mar - Wed, 18 Mar
Cathay Pacific Logo
12:35 - 19:35CNS-USM
34h 00m2 stops
Cathay Pacific Logo
11:40 - 10:45USM-CNS
44h 05m2 stops
$1,975Cathay Pacific
Find Deal
Thu, 5 Mar - Sun, 8 Mar

Qantas Airways flights from Australia to Ko Samui

Our best Qantas Airways deals on Australia to Ko Samui flight tickets
Qantas Airways
7 May
ADL06:00Adelaide
17h 40m
2 stops
USM21:10Ko Samui
15 May
USM16:25Ko Samui
22h 50m
2 stops
ADL17:45Adelaide
$1,221
Find similar
Qantas Airways
7 May
ADL06:30Adelaide
17h 10m
2 stops
USM21:10Ko Samui
15 May
USM16:25Ko Samui
23h 20m
2 stops
ADL18:15Adelaide
$1,224
Find similar
Qantas Airways
26 Nov
MEL16:55Melbourne
29h 20m
1 stop
USM18:15Ko Samui
2 Dec
USM08:15Ko Samui
22h 00m
1 stop
MEL10:15Melbourne
$1,255
Find similar

Thai Airways flights from Australia to Ko Samui

Our best Thai Airways deals on Australia to Ko Samui flight tickets
Thai Airways
25 Nov
MEL00:30Melbourne
12h 10m
1 stop
USM08:40Ko Samui
2 Dec
USM19:35Ko Samui
21h 45m
1 stop
MEL21:20Melbourne
$1,482
Find similar
Thai Airways
28 Dec
MEL00:30Melbourne
19h 10m
1 stop
USM15:40Ko Samui
11 Jan
USM17:25Ko Samui
33h 55m
1 stop
MEL07:20Melbourne
$1,534
Find similar
Thai Airways
31 Dec
MEL00:30Melbourne
19h 10m
1 stop
USM15:40Ko Samui
8 Jan
USM17:25Ko Samui
33h 55m
1 stop
MEL07:20Melbourne
$1,537
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Australia 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, momondo users made 78,305 searches. Data last updated 21 November 2025.
Use the filters below to find and compare flights from Australia to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 2/12

05:35-17:10

1 stop12h 35m

Ko Samui

Fri 12/12

08:55-04:15

1 stop18h 20m

$590

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 7/3

05:35-17:10

1 stop12h 35m

Ko Samui

Sat 21/3

08:55-04:15

1 stop18h 20m

$596

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 2/12

20:25-17:10

2 stops21h 45m

Ko Samui

Fri 12/12

08:55-04:15

1 stop18h 20m

$720

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 16/4

18:25-07:50

1 stop14h 25m

Ko Samui

Mon 27/4

12:10-04:00

2 stops14h 50m

$734

BrisbaneKo Samui

BNE - USM

BNEUSM

Brisbane

Thu 23/4

11:05-21:10

1 stop13h 05m

Ko Samui

Tue 5/5

13:30-06:00

1 stop13h 30m

$1,140

BrisbaneKo Samui

BNE - USM

BNEUSM

Brisbane

Thu 23/4

11:05-18:15

1 stop34h 10m

Ko Samui

Tue 5/5

08:20-06:00

1 stop18h 40m

$1,142

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Thu 7/5

17:35-07:50

1 stop16h 45m

Ko Samui

Fri 15/5

17:40-16:20

1 stop20h 10m

$1,307

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Thu 7/5

17:35-07:50

1 stop16h 45m

Ko Samui

Fri 15/5

19:25-16:20

1 stop18h 25m

$1,315

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 16/3

11:35-19:35

2 stops35h 00m

Ko Samui

Wed 18/3

11:40-16:50

2 stops50h 10m

$1,757

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Thu 5/3

12:35-19:35

2 stops34h 00m

Ko Samui

Sun 8/3

11:40-10:45

2 stops44h 05m

$1,975

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Ko Samui from

How to get the cheapest flight ticket from Australia 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 cheapest month to fly to Ko Samui?

The month of October is, on average, the cheapest month to fly to Ko Samui from Australia, with most prices found around $875. If you aren’t able to travel during the month of October, then book flights to Ko Samui from Australia during August instead. Flights to Ko Samui in August, while not as cheap as those in October, still average around $910.

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 Australia. The lowest ticket price found for a Tuesday departure recently was $1,138. 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 Australia to Ko Samui for around $1,307.

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

Our data shows that the cheapest Australia 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 $958. Flights in the morning are often more expensive, with an average ticket price of $1,340.

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

You are more likely to see cheaper flights to Ko Samui from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $1,097 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Australia for as low as $926 on momondo.

Can stopping save me money on Australia to Ko Samui flights?

You could potentially save up to 74% on your flight if you consider stops on a Australia to Ko Samui flight.

Cheap Australia to Ko Samui flight deals and tips

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

Direct flights

None
There are no direct flights from Australia to Ko Samui. There are no popular flight routes from Australia to Ko Samui.
Search flight deals

  • When did momondo last update prices for flights from Australia to Ko Samui Airport?

    Prices for flights from Australia to Ko Samui Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Australia to Ko Samui Airport?

  • How old do you have to be to fly from Australia to Ko Samui Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Australia to Ko Samui Airport.

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

    The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Australia to Ko Samui

Compare and see reviews for airlines that fly from Australia to Ko Samui with momondo
Airline
Rating
Free cancellation
Price
ScootPriceFrom $500Free cancellationRating
6.7
311 reviews
Search Scoot flights
Singapore AirlinesPriceFrom $832Free cancellationRating
8.1
1,407 reviews
Search Singapore Airlines flights
Qantas AirwaysPriceFrom $946Free cancellationRating
7.5
942 reviews
Search Qantas Airways flights
Bangkok AirwaysPriceFrom $1,174Free cancellationRating
8.0
117 reviews
Search Bangkok Airways flights
Thai AirwaysPriceFrom $1,296Free cancellationRating
7.8
362 reviews
Search Thai 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 Australia to Ko Samui?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Australia to Ko Samui . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Australia to Ko Samui flights to just show those with flexible booking policies.

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

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

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

Price alerts on flights to Ko Samui from Australia 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.

An easier way to manage your Ko Samui trip

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