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Cheap flights from Australia to Ko Samui from $252

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 20/7. 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

Discover deals from 900+ travel sites with momondo.

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.
Multiple Airlines Logo
07:30 - 20:25
PER
-
USM
13h 55m
1 stop
Multiple Airlines Logo
11:05 - 17:10
USM
-
PER
29h 05m
1 stop
$655Multiple Airlines
Thu, 11 Jun - Thu, 25 Jun
Multiple Airlines Logo
07:30 - 20:25
PER
-
USM
13h 55m
1 stop
Multiple Airlines Logo
08:00 - 17:10
USM
-
PER
32h 10m
2 stops
$670Multiple Airlines
Tue, 9 Jun - Thu, 18 Jun
Multiple Airlines Logo
07:30 - 20:25
PER
-
USM
13h 55m
1 stop
Multiple Airlines Logo
08:00 - 17:10
USM
-
PER
32h 10m
2 stops
$671Multiple Airlines
Tue, 9 Jun - Thu, 18 Jun
Scoot Logo
05:35 - 18:50
PER
-
USM
14h 15m
1 stop
Scoot Logo
08:40 - 04:20
USM
-
PER
18h 40m
1 stop
$673Scoot
Sat, 1 Aug - Thu, 20 Aug
Multiple Airlines Logo
05:35 - 07:10
PER
-
USM
26h 35m
2 stops
Multiple Airlines Logo
08:40 - 04:20
USM
-
PER
18h 40m
1 stop
$682Multiple Airlines
Tue, 9 Jun - Thu, 18 Jun
Scoot Logo
20:35 - 07:45
SYD
-
USM
14h 10m
1 stop
Scoot Logo
19:45 - 19:20
USM
-
SYD
20h 35m
1 stop
$773Scoot
Mon, 10 Aug - Wed, 19 Aug
Singapore Airlines Logo
17:35 - 07:45
ADL
-
USM
16h 40m
1 stop
Singapore Airlines Logo
08:40 - 07:25
USM
-
ADL
20h 15m
1 stop
$1,264Singapore Airlines
Sun, 30 Aug - Mon, 7 Sep
Singapore Airlines Logo
17:35 - 07:45
ADL
-
USM
16h 40m
1 stop
Singapore Airlines Logo
18:15 - 07:25
USM
-
ADL
10h 40m
1 stop
$1,266Singapore Airlines
Sun, 30 Aug - Mon, 7 Sep
Qantas Airways Logo
17:40 - 21:10
CNS
-
USM
30h 30m
2 stops
Qantas Airways Logo
13:30 - 12:55
USM
-
CNS
20h 25m
2 stops
$1,574Qantas Airways
Mon, 27 Jul - Thu, 20 Aug
Qantas Airways Logo
06:00 - 21:10
CNS
-
USM
18h 10m
2 stops
Qantas Airways Logo
16:25 - 12:55
USM
-
CNS
17h 30m
2 stops
$1,624Qantas Airways
Sat, 25 Jul - Wed, 19 Aug

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Singapore Airlines flights from Australia to Ko Samui

Our best Singapore Airlines deals on Australia to Ko Samui flight tickets
Singapore Airlines
30 Aug
ADL17:35Adelaide
16h 40m
1 stop
USM07:45Ko Samui
7 Sept
USM08:40Ko Samui
20h 15m
1 stop
ADL07:25Adelaide
$1,264
Singapore Airlines
30 Aug
ADL17:35Adelaide
16h 40m
1 stop
USM07:45Ko Samui
7 Sept
USM18:15Ko Samui
10h 40m
1 stop
ADL07:25Adelaide
$1,266
Singapore Airlines
30 Aug
ADL17:35Adelaide
16h 40m
1 stop
USM07:45Ko Samui
7 Sept
USM18:15Ko Samui
10h 40m
1 stop
ADL07:25Adelaide
$1,269

Qantas Airways flights from Australia to Ko Samui

Our best Qantas Airways deals on Australia to Ko Samui flight tickets
Qantas Airways
14 May
BNE11:05Brisbane
34h 10m
1 stop
USM18:15Ko Samui
16 Nov
USM13:25Ko Samui
13h 30m
1 stop
BNE05:55Brisbane
$1,300
Qantas Airways
30 Aug
ADL17:10Adelaide
29h 50m
2 stops
USM20:30Ko Samui
7 Sept
USM13:30Ko Samui
19h 15m
2 stops
ADL11:15Adelaide
$1,332
Qantas Airways
30 Aug
ADL19:10Adelaide
27h 50m
2 stops
USM20:30Ko Samui
7 Sept
USM13:30Ko Samui
19h 15m
2 stops
ADL11:15Adelaide
$1,334

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 3 May 2026.
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

Cheapest return flight

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 11/6

07:30-20:25

1 stop13h 55m

Ko Samui

Thu 25/6

11:05-17:10

1 stop29h 05m

$655

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 9/6

07:30-20:25

1 stop13h 55m

Ko Samui

Thu 18/6

08:00-17:10

2 stops32h 10m

$670

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 9/6

07:30-20:25

1 stop13h 55m

Ko Samui

Thu 18/6

08:00-17:10

2 stops32h 10m

$671

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 1/8

05:35-18:50

1 stop14h 15m

Ko Samui

Thu 20/8

08:40-04:20

1 stop18h 40m

$673

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 9/6

05:35-07:10

2 stops26h 35m

Ko Samui

Thu 18/6

08:40-04:20

1 stop18h 40m

$682

SydneyKo Samui

SYD - USM

SYDUSM

Sydney Kingsford Smith

Mon 10/8

20:35-07:45

1 stop14h 10m

Ko Samui

Wed 19/8

19:45-19:20

1 stop20h 35m

$773

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Sun 30/8

17:35-07:45

1 stop16h 40m

Ko Samui

Mon 7/9

08:40-07:25

1 stop20h 15m

$1,264
Fastest return journey

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Sun 30/8

17:35-07:45

1 stop16h 40m

Ko Samui

Mon 7/9

18:15-07:25

1 stop10h 40m

$1,266

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 27/7

17:40-21:10

2 stops30h 30m

Ko Samui

Thu 20/8

13:30-12:55

2 stops20h 25m

$1,574

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sat 25/7

06:00-21:10

2 stops18h 10m

Ko Samui

Wed 19/8

16:25-12:55

2 stops17h 30m

$1,624

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 September is, on average, the cheapest month to fly to Ko Samui from Australia, with most prices found around $178. If you aren’t able to travel during the month of September, then book flights to Ko Samui from Australia during March instead. Flights to Ko Samui in March, while not as cheap as those in September, still average around $194.

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 $993 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 $778 on momondo.

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

You could potentially save up to 73% 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

Fastest flight time

9h 55m

Direct flights

Mon, Fri and Sun

Airports in Ko Samui

1 airport
The fastest flight from Australia to Ko Samui takes 9h 55m
Direct flights go from Australia to Ko Samui on Monday, Friday and Sunday. There are no airlines offering direct flights..
There is 1 airport in Ko Samui. From Australia there are direct flights to Ko Samui (USM).
Search flight deals

Frequently asked questions about flying from Australia to Ko Samui

  • 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 $447Free cancellationRating
6.7
326 reviews
Search Scoot flights
Singapore AirlinesPriceFrom $826Free cancellationRating
8.2
1,506 reviews
Search Singapore Airlines flights
Qantas AirwaysPriceFrom $879Free cancellationRating
7.5
1,030 reviews
Search Qantas Airways flights
Bangkok AirwaysPriceFrom $1,183Free cancellationRating
8.1
127 reviews
Search Bangkok Airways flights
Thai AirwaysPriceFrom $1,218Free cancellationRating
7.9
401 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 Tao
Ko Pha Ngan
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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