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Cheap flights from Perth to Ko Samui from $283

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 21/10. 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.
Scoot Logo
21:10 - 17:10PER  Perth-USM Ko Samui
21h 00m1 stop Singapore Changi
Scoot Logo
19:45 - 19:40USM  Ko Samui-PER Perth
22h 55m1 stop Singapore Changi
$616Scoot
Sun, 1 Nov - Wed, 11 Nov
Multiple Airlines Logo
04:45 - 20:25PER  Perth-USM Ko Samui
16h 40m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
08:00 - 03:45USM  Ko Samui-PER Perth
18h 45m2 stops Phuket City Kuala Lumpur Intl
$639Multiple Airlines
Fri, 4 Sep - Sat, 12 Sep
Scoot Logo
09:40 - 18:50PER  Perth-USM Ko Samui
10h 10m1 stop Singapore Changi
Scoot Logo
18:05 - 16:35USM  Ko Samui-PER Perth
21h 30m1 stop Singapore Changi
$653Scoot
Mon, 12 Oct - Mon, 26 Oct
Scoot Logo
17:50 - 08:00PER  Perth-USM Ko Samui
15h 10m1 stop Singapore Changi
Scoot Logo
19:45 - 16:35USM  Ko Samui-PER Perth
19h 50m1 stop Singapore Changi
$664Scoot
Tue, 27 Oct - Mon, 2 Nov
Multiple Airlines Logo
04:45 - 13:55PER  Perth-USM Ko Samui
34h 10m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
18:15 - 04:20USM  Ko Samui-PER Perth
9h 05m1 stop Singapore Changi
$671Multiple Airlines
Fri, 4 Sep - Sat, 19 Sep
Multiple Airlines Logo
18:25 - 18:50PER  Perth-USM Ko Samui
25h 25m1 stop Singapore Changi
Multiple Airlines Logo
19:45 - 04:30USM  Ko Samui-PER Perth
31h 45m3 stops Singapore Changi Penang Intl Kuala Lumpur Intl
$676Multiple Airlines
Mon, 12 Oct - Mon, 26 Oct
Singapore Airlines Logo
01:20 - 17:10PER  Perth-USM Ko Samui
16h 50m1 stop Singapore Changi
Singapore Airlines Logo
19:45 - 05:25USM  Ko Samui-PER Perth
8h 40m1 stop Singapore Changi
$1,531Singapore Airlines
Wed, 2 Dec - Thu, 3 Dec
Singapore Airlines Logo
06:25 - 18:50PER  Perth-USM Ko Samui
13h 25m1 stop Singapore Changi
Singapore Airlines Logo
18:15 - 05:10USM  Ko Samui-PER Perth
33h 55m1 stop Singapore Changi
$1,555Singapore Airlines
Sun, 20 Sep - Tue, 29 Sep
Qantas Airways Logo
12:55 - 20:30PER  Perth-USM Ko Samui
32h 35m3 stops Darwin Sydney Kingsford Smith Bangkok Suvarnabhumi
Qantas Airways Logo
16:25 - 11:20USM  Ko Samui-PER Perth
17h 55m2 stops Singapore Changi Sydney Kingsford Smith
$2,911Qantas Airways
Fri, 11 Sep - Wed, 16 Sep
Qantas Airways Logo
12:55 - 20:30PER  Perth-USM Ko Samui
32h 35m3 stops Darwin Sydney Kingsford Smith Bangkok Suvarnabhumi
Qantas Airways Logo
16:25 - 11:20USM  Ko Samui-PER Perth
17h 55m2 stops Singapore Changi Sydney Kingsford Smith
$3,646Qantas Airways
Fri, 11 Sep - Wed, 16 Sep

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Scoot flights from Perth to Ko Samui

Our best Scoot deals on Perth to Ko Samui flight tickets
Scoot
1 Nov
PER21:10Perth
21h 00m
1 stop
USM17:10Ko Samui
11 Nov
USM19:45Ko Samui
22h 55m
1 stop
PER19:40Perth
$616
Scoot
12 Oct
PER09:40Perth
10h 10m
1 stop
USM18:50Ko Samui
26 Oct
USM18:05Ko Samui
21h 30m
1 stop
PER16:35Perth
$653
Scoot
27 Oct
PER17:50Perth
15h 10m
1 stop
USM08:00Ko Samui
2 Nov
USM19:45Ko Samui
19h 50m
1 stop
PER16:35Perth
$664

Qantas Airways flights from Perth to Ko Samui

Our best Qantas Airways deals on Perth to Ko Samui flight tickets
Qantas Airways
20 Aug
PER22:55Perth
23h 15m
2 stops
USM21:10Ko Samui
31 Aug
USM13:30Ko Samui
28h 50m
3 stops
PER19:20Perth
$5,373
Qantas Airways
20 Aug
PER22:55Perth
23h 15m
2 stops
USM21:10Ko Samui
31 Aug
USM13:30Ko Samui
28h 50m
3 stops
PER19:20Perth
$5,393

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 August 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 Perth - USM Ko Samui

PERUSM

Perth

Sun 1/11

21:10-17:10

1 stop21h 00m

Ko Samui

Wed 11/11

19:45-19:40

1 stop22h 55m

$616

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Fri 4/9

04:45-20:25

2 stops16h 40m

Ko Samui

Sat 12/9

08:00-03:45

2 stops18h 45m

$639

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Mon 12/10

09:40-18:50

1 stop10h 10m

Ko Samui

Mon 26/10

18:05-16:35

1 stop21h 30m

$653

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Tue 27/10

17:50-08:00

1 stop15h 10m

Ko Samui

Mon 2/11

19:45-16:35

1 stop19h 50m

$664

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Fri 4/9

04:45-13:55

2 stops34h 10m

Ko Samui

Sat 19/9

18:15-04:20

1 stop9h 05m

$671

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Mon 12/10

18:25-18:50

1 stop25h 25m

Ko Samui

Mon 26/10

19:45-04:30

3 stops31h 45m

$676
Fastest return journey

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Wed 2/12

01:20-17:10

1 stop16h 50m

Ko Samui

Thu 3/12

19:45-05:25

1 stop8h 40m

$1,531

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Sun 20/9

06:25-18:50

1 stop13h 25m

Ko Samui

Tue 29/9

18:15-05:10

1 stop33h 55m

$1,555

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Fri 11/9

12:55-20:30

3 stops32h 35m

Ko Samui

Wed 16/9

16:25-11:20

2 stops17h 55m

$2,911

PerthKo Samui

PER Perth - USM Ko Samui

PERUSM

Perth

Fri 11/9

12:55-20:30

3 stops32h 35m

Ko Samui

Wed 16/9

16:25-11:20

2 stops17h 55m

$3,646

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?

Prices are currently low for flights on this route.

Typical prices usually range from $722 to $1,007.
The lowest price recently found on this route was $616.

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 $711. If you aren’t able to travel during the month of November, then book flights to Ko Samui from Perth during February instead. Flights to Ko Samui in February, while not as cheap as those in November, still average around $732.

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 $1,014 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 $800 on momondo.

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

As of August 2026, prices for Perth to Ko Samui flights are approximately 9% more expensive 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

8h 25m

Direct flights

None
The fastest flight from Perth to Ko Samui takes 8h 25m
There are no direct flights from Perth to Ko Samui. There are no popular flight routes from Perth to Ko Samui.
Search flight deals

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 8h 25m.

  • 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 $514Free cancellationRating
6.7
327 reviews
Search Scoot flights
Qantas AirwaysPriceFrom $897Free cancellationRating
7.5
1,081 reviews
Search Qantas Airways flights
Singapore AirlinesPriceFrom $954Free cancellationRating
8.2
1,584 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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