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Cheap flights from Perth to Ko Samui from $338

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Perth to Ko Samui departing on 3/8. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Perth to Ko Samui

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
05:35 - 08:25
PER
-
USM
27h 50m
2 stops
Multiple Airlines Logo
18:15 - 04:20
USM
-
PER
9h 05m
1 stop
$650Multiple Airlines
Sun, 20 Sep - Fri, 25 Sep
Multiple Airlines Logo
05:35 - 11:55
PER
-
USM
31h 20m
2 stops
Multiple Airlines Logo
17:55 - 04:20
USM
-
PER
33h 25m
2 stops
$658Multiple Airlines
Sun, 30 Aug - Sun, 6 Sep
Multiple Airlines Logo
07:30 - 20:25
PER
-
USM
13h 55m
1 stop
Multiple Airlines Logo
18:15 - 04:20
USM
-
PER
9h 05m
1 stop
$660Multiple Airlines
Sun, 20 Sep - Fri, 25 Sep
Scoot Logo
05:35 - 18:50
PER
-
USM
14h 15m
1 stop
Scoot Logo
12:00 - 19:40
USM
-
PER
30h 40m
1 stop
$674Scoot
Tue, 20 Oct - Sun, 1 Nov
Scoot Logo
17:50 - 11:00
PER
-
USM
18h 10m
1 stop
Scoot Logo
08:55 - 19:40
USM
-
PER
9h 45m
1 stop
$679Scoot
Tue, 27 Oct - Tue, 17 Nov
Scoot Logo
18:25 - 07:45
PER
-
USM
14h 20m
1 stop
Scoot Logo
19:45 - 17:10
USM
-
PER
20h 25m
1 stop
$702Scoot
Mon, 3 Aug - Wed, 12 Aug
Multiple Airlines Logo
07:30 - 11:55
PER
-
USM
29h 25m
1 stop
Multiple Airlines Logo
17:00 - 04:20
USM
-
PER
34h 20m
2 stops
$706Multiple Airlines
Sun, 30 Aug - Sun, 6 Sep
Scoot Logo
18:25 - 07:45
PER
-
USM
14h 20m
1 stop
Scoot Logo
19:45 - 17:10
USM
-
PER
20h 25m
1 stop
$710Scoot
Mon, 3 Aug - Fri, 21 Aug
Multiple Airlines Logo
05:35 - 14:40
PER
-
USM
34h 05m
2 stops
Multiple Airlines Logo
08:00 - 19:30
USM
-
PER
34h 30m
2 stops
$722Multiple Airlines
Sat, 29 Aug - Sat, 5 Sep
Multiple Airlines Logo
05:35 - 14:40
PER
-
USM
34h 05m
2 stops
Multiple Airlines Logo
19:45 - 17:10
USM
-
PER
20h 25m
1 stop
$729Multiple Airlines
Fri, 21 Aug - Tue, 25 Aug

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Scoot flights from Perth to Ko Samui

Our best Scoot deals on Perth to Ko Samui flight tickets
Scoot
20 Oct
PER05:35Perth
14h 15m
1 stop
USM18:50Ko Samui
1 Nov
USM12:00Ko Samui
30h 40m
1 stop
PER19:40Perth
$674
Scoot
27 Oct
PER17:50Perth
18h 10m
1 stop
USM11:00Ko Samui
17 Nov
USM08:55Ko Samui
9h 45m
1 stop
PER19:40Perth
$679
Scoot
3 Aug
PER18:25Perth
14h 20m
1 stop
USM07:45Ko Samui
12 Aug
USM19:45Ko Samui
20h 25m
1 stop
PER17:10Perth
$702

momondo Fare Finder

 
Customise your flight search to find flights from Perth 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 12 July 2026.
Use the filters below to find and compare flights from Perth 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

Sun 20/9

05:35-08:25

2 stops27h 50m

Ko Samui

Fri 25/9

18:15-04:20

1 stop9h 05m

$650

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 30/8

05:35-11:55

2 stops31h 20m

Ko Samui

Sun 6/9

17:55-04:20

2 stops33h 25m

$658
Fastest return journey

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 20/9

07:30-20:25

1 stop13h 55m

Ko Samui

Fri 25/9

18:15-04:20

1 stop9h 05m

$660

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 20/10

05:35-18:50

1 stop14h 15m

Ko Samui

Sun 1/11

12:00-19:40

1 stop30h 40m

$674

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 27/10

17:50-11:00

1 stop18h 10m

Ko Samui

Tue 17/11

08:55-19:40

1 stop9h 45m

$679

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 3/8

18:25-07:45

1 stop14h 20m

Ko Samui

Wed 12/8

19:45-17:10

1 stop20h 25m

$702

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 30/8

07:30-11:55

1 stop29h 25m

Ko Samui

Sun 6/9

17:00-04:20

2 stops34h 20m

$706

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 3/8

18:25-07:45

1 stop14h 20m

Ko Samui

Fri 21/8

19:45-17:10

1 stop20h 25m

$710

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 29/8

05:35-14:40

2 stops34h 05m

Ko Samui

Sat 5/9

08:00-19:30

2 stops34h 30m

$722

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 21/8

05:35-14:40

2 stops34h 05m

Ko Samui

Tue 25/8

19:45-17:10

1 stop20h 25m

$729

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 Perth 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 Perth and Ko Samui?

What is the cheapest month to fly to Ko Samui?

The month of November is, on average, the cheapest month to fly to Ko Samui from Perth, with most prices found around $618. If you aren’t able to travel during the month of November, then book flights to Ko Samui from Perth during October instead. Flights to Ko Samui in October, while not as cheap as those in November, still average around $703.

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

You are more likely to see cheaper flights to Ko Samui from Perth when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $964 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 Perth for as low as $679 on momondo.

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

As of July 2026, prices for Perth to Ko Samui flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Perth to Ko Samui

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

Cheap Perth to Ko Samui (PER to USM) flight deals and tips

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

Fastest flight time

14h 15m

Direct flights

None
The fastest flight from Perth to Ko Samui takes 14h 15m
There are no direct flights from Perth to Ko Samui. There are no popular flight routes from Perth to Ko Samui.
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Frequently asked questions about flying from Perth to Ko Samui

  • How far is Perth to Ko Samui by plane?

    A flight from Perth to Ko Samui will travel around 4905.0 km. In terms of flight time, this usually takes a little over 14h 15m.

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

    Prices for flights from Perth Airport to Ko Samui Airport refresh daily.

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

  • How old do you have to be to fly from Perth Airport 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 Perth Airport to Ko Samui Airport.

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

    The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Perth to Ko Samui

Compare and see reviews for airlines that fly from Perth to Ko Samui with momondo
Airline
Rating
Free cancellation
Price
ScootPriceFrom $471Free cancellationRating
6.7
325 reviews
Search Scoot flights
Qantas AirwaysPriceFrom $911Free cancellationRating
7.5
1,061 reviews
Search Qantas Airways flights
Singapore AirlinesPriceFrom $939Free cancellationRating
8.2
1,572 reviews
Search Singapore Airlines 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 Perth 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 Perth to Ko Samui for you.

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

Yes. All flights to Ko Samui from Perth on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from Perth.

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

Yes momondo offers price alerts on flights to Ko Samui from Perth. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ko Samui trip

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