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Cheap flights from Australia to Ko Samui from $320

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 20/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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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
13:00 - 07:50MEL-USM
21h 50m1 stop
Scoot Logo
19:25 - 11:45USM-MEL
13h 20m1 stop
$534Scoot
Find Deal
Wed, 6 May - Wed, 13 May
Scoot Logo
21:30 - 18:30MEL-USM
24h 00m1 stop
Scoot Logo
19:25 - 20:15USM-MEL
21h 50m1 stop
$537Scoot
Find Deal
Sun, 10 May - Thu, 21 May
Scoot Logo
17:45 - 08:00PER-USM
15h 15m1 stop
Scoot Logo
08:55 - 16:30USM-PER
30h 35m1 stop
$569Scoot
Find Deal
Tue, 10 Mar - Wed, 18 Mar
Scoot Logo
13:00 - 07:50MEL-USM
21h 50m1 stop
Scoot Logo
18:15 - 20:15USM-MEL
23h 00m1 stop
$589Scoot
Find Deal
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
05:35 - 17:10PER-USM
12h 35m1 stop
Multiple Airlines Logo
07:00 - 04:15USM-PER
44h 15m2 stops
$615Multiple Airlines
Find Deal
Tue, 10 Mar - Wed, 18 Mar
Multiple Airlines Logo
05:35 - 17:10PER-USM
12h 35m1 stop
Multiple Airlines Logo
19:00 - 04:30USM-PER
32h 30m2 stops
$644Multiple Airlines
Find Deal
Sun, 8 Mar - Sun, 15 Mar
Singapore Airlines Logo
18:35 - 08:00CNS-USM
16h 25m1 stop
Singapore Airlines Logo
19:45 - 17:20USM-CNS
42h 35m1 stop
$1,534Singapore Airlines
Find Deal
Mon, 19 Jan - Mon, 26 Jan
Singapore Airlines Logo
18:35 - 08:00CNS-USM
16h 25m1 stop
Singapore Airlines Logo
19:45 - 17:20USM-CNS
42h 35m1 stop
$1,571Singapore Airlines
Find Deal
Sun, 18 Jan - Mon, 26 Jan
Qantas Airways Logo
10:20 - 21:05AVV-USM
38h 45m2 stops
Qantas Airways Logo
14:05 - 14:10USM-AVV
20h 05m2 stops
$8,733Qantas Airways
Find Deal
Thu, 19 Mar - Mon, 23 Mar
Qantas Airways Logo
06:00 - 18:15AVV-USM
40h 15m2 stops
Qantas Airways Logo
13:45 - 14:10USM-AVV
20h 25m2 stops
$8,768Qantas Airways
Find Deal
Thu, 19 Mar - Mon, 23 Mar

Scoot flights from Australia to Ko Samui

Our best Scoot deals on Australia to Ko Samui flight tickets
Scoot
4 Mar
SYD20:05Sydney Kingsford Smith
26h 45m
1 stop
USM18:50Ko Samui
10 Mar
USM08:55Ko Samui
29h 55m
1 stop
SYD18:50Sydney Kingsford Smith
$616
Find similar
Scoot
8 Feb
PER05:35Perth
27h 25m
1 stop
USM08:00Ko Samui
15 Feb
USM08:55Ko Samui
18h 20m
1 stop
PER04:15Perth
$665
Find similar
Scoot
23 Feb
SYD20:05Sydney Kingsford Smith
25h 05m
1 stop
USM17:10Ko Samui
13 Mar
USM08:55Ko Samui
29h 55m
1 stop
SYD18:50Sydney Kingsford Smith
$667
Find similar

Qantas Airways flights from Australia to Ko Samui

Our best Qantas Airways deals on Australia to Ko Samui flight tickets
Qantas Airways
8 Feb
BNE15:10Brisbane
30h 05m
1 stop
USM18:15Ko Samui
14 Feb
USM08:15Ko Samui
18h 40m
1 stop
BNE05:55Brisbane
$1,286
Find similar
Qantas Airways
9 Feb
BNE05:00Brisbane
19h 20m
2 stops
USM21:20Ko Samui
14 Feb
USM08:15Ko Samui
18h 40m
1 stop
BNE05:55Brisbane
$1,349
Find similar
Qantas Airways
8 Feb
BNE19:20Brisbane
29h 00m
2 stops
USM21:20Ko Samui
14 Feb
USM08:15Ko Samui
21h 25m
1 stop
BNE08:40Brisbane
$1,393
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 29 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

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Wed 6/5

13:00-07:50

1 stop21h 50m

Ko Samui

Wed 13/5

19:25-11:45

1 stop13h 20m

$534

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Sun 10/5

21:30-18:30

1 stop24h 00m

Ko Samui

Thu 21/5

19:25-20:15

1 stop21h 50m

$537

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 10/3

17:45-08:00

1 stop15h 15m

Ko Samui

Wed 18/3

08:55-16:30

1 stop30h 35m

$569

MelbourneKo Samui

MEL - USM

MELUSM

Melbourne

Thu 7/5

13:00-07:50

1 stop21h 50m

Ko Samui

Thu 14/5

18:15-20:15

1 stop23h 00m

$589

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 10/3

05:35-17:10

1 stop12h 35m

Ko Samui

Wed 18/3

07:00-04:15

2 stops44h 15m

$615

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 8/3

05:35-17:10

1 stop12h 35m

Ko Samui

Sun 15/3

19:00-04:30

2 stops32h 30m

$644

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 19/1

18:35-08:00

1 stop16h 25m

Ko Samui

Mon 26/1

19:45-17:20

1 stop42h 35m

$1,534

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 18/1

18:35-08:00

1 stop16h 25m

Ko Samui

Mon 26/1

19:45-17:20

1 stop42h 35m

$1,571

MelbourneKo Samui

AVV - USM

AVVUSM

Melbourne Avalon

Thu 19/3

10:20-21:05

2 stops38h 45m

Ko Samui

Mon 23/3

14:05-14:10

2 stops20h 05m

$8,733

MelbourneKo Samui

AVV - USM

AVVUSM

Melbourne Avalon

Thu 19/3

06:00-18:15

2 stops40h 15m

Ko Samui

Mon 23/3

13:45-14:10

2 stops20h 25m

$8,768

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $866. 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 $901.

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 $1,127. 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 $1,294.

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 $948. Flights in the morning are often more expensive, with an average ticket price of $1,326.

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 $1,088 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 $916 on momondo.

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

You could potentially save up to 76% 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

10h 55m

Direct flights

None
The fastest flight from Australia to Ko Samui takes 10h 55m
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 $493Free cancellationRating
6.7
311 reviews
Search Scoot flights
Singapore AirlinesPriceFrom $822Free cancellationRating
8.1
1,411 reviews
Search Singapore Airlines flights
Qantas AirwaysPriceFrom $936Free cancellationRating
7.5
946 reviews
Search Qantas Airways flights
Bangkok AirwaysPriceFrom $1,160Free cancellationRating
8.0
117 reviews
Search Bangkok Airways flights
Thai AirwaysPriceFrom $1,283Free 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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