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Cheap flights from Perth to Ko Samui from $255

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PER — USM
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Perth to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Perth to Ko Samui
Explore the most affordable flight options available from Perth to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 March 2026.

Sun 18/1005:35
PER
-
USM
1 stop14h 15m
Scoot
Mon 26/1019:45
USM
-
PER
1 stop19h 45m
Scoot
Deal found 10/3$439
Thu 23/405:35
PER
-
USM
1 stop14h 15m
Scoot
Thu 7/508:40
USM
-
PER
1 stop18h 40m
Scoot
Deal found 6/3$491
Fri 15/518:25
PER
-
USM
1 stop14h 20m
Scoot
Tue 19/519:45
USM
-
PER
1 stop20h 25m
Scoot
Deal found 9/3$561
Thu 23/418:25
PER
-
USM
1 stop14h 20m
Multiple Airlines
Thu 7/512:30
USM
-
PER
2 stops16h 20m
Multiple Airlines
Deal found 6/3$567
Tue 28/405:35
PER
-
USM
1 stop14h 15m
Scoot
Tue 5/508:40
USM
-
PER
1 stop22h 30m
Scoot
Deal found 10/3$592
Mon 20/418:25
PER
-
USM
1 stop25h 25m
Scoot
Thu 30/408:40
USM
-
PER
1 stop18h 40m
Scoot
Deal found 10/3$605
Fri 24/405:35
PER
-
USM
1 stop14h 15m
Scoot
Wed 29/408:40
USM
-
PER
1 stop18h 40m
Scoot
Deal found 9/3$609
Wed 15/418:25
PER
-
USM
1 stop14h 20m
Scoot
Sun 26/408:40
USM
-
PER
1 stop9h 50m
Scoot
Deal found 5/3$611
Wed 22/409:55
PER
-
USM
1 stop9h 55m
Scoot
Wed 29/411:05
USM
-
PER
1 stop16h 15m
Scoot
Deal found 8/3$612
Fri 15/505:35
PER
-
USM
1 stop12h 45m
Multiple Airlines
Tue 19/512:30
USM
-
PER
2 stops16h 20m
Multiple Airlines
Deal found 9/3$621
Tue 21/405:35
PER
-
USM
1 stop12h 45m
Scoot
Tue 28/418:15
USM
-
PER
1 stop12h 55m
Scoot
Deal found 7/3$628
Thu 23/405:35
PER
-
USM
1 stop14h 15m
Scoot
Thu 30/408:40
USM
-
PER
1 stop18h 40m
Scoot
Deal found 8/3$632

Find flight deals from Perth to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Perth (PER) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 March 2026.

Round-trip from

$491

One-way from

$255

Popular in

December

Cheapest in

November

Average price

$787
Scoot
  • Scoot
  • 23/4-7/5
  • 2 total stops
  • 32h 55m total
  • Perth to Ko Samui
Search Deals
Scoot
  • Scoot
  • 10/5
  • 1 total stop
  • 22h 40m total
  • Perth to Ko Samui
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($204 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 10 March 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
Fastest return journey

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 11/5

09:55-17:20

1 stop8h 25m

Ko Samui

Fri 15/5

18:15-04:20

1 stop9h 05m

$891

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 25/6

05:35-07:45

1 stop27h 10m

Ko Samui

Tue 7/7

19:45-17:10

1 stop20h 25m

$1,130

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 10/5

02:10-16:35

2 stops15h 25m

Ko Samui

Fri 15/5

07:50-01:10

2 stops16h 20m

$1,327

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 16/5

02:10-21:35

2 stops20h 25m

Ko Samui

Thu 21/5

15:50-14:50

2 stops22h 00m

$1,348

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 11/5

08:20-07:10

2 stops23h 50m

Ko Samui

Fri 15/5

11:55-06:50

1 stop17h 55m

$1,452

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 2/4

05:35-17:20

1 stop12h 45m

Ko Samui

Tue 14/4

12:30-08:10

2 stops18h 40m

$1,495

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 24/3

02:25-14:55

2 stops13h 30m

Ko Samui

Thu 30/4

08:45-01:10

2 stops15h 25m

$1,501

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 16/5

00:10-19:40

1 stop20h 30m

Ko Samui

Thu 21/5

06:00-06:50

2 stops23h 50m

$1,518
Cheapest one-way

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 10/5

21:10-18:50

1 stop22h 40m

$255

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 15/5

18:25-07:45

1 stop14h 20m

$276

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Perth to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Perth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Perth to Ko Samui

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

Use this chart to determine the optimal time to book a return flight from Perth to Ko Samui. Price data was last updated on 6 March 2026.

The price you pay for your flight from Perth to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Perth to Ko Samui?

Currently, October is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $430). Flying from Perth to Ko Samui in December is currently the most expensive (average of $790). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 10 March 2026.
Read reviews from past customers who have flown with Singapore Airlines,Qantas Airways, andScoot from Perth to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,471 reviews
Check prices

Crew

8.6

Boarding

8.3

Overall

8.2

Food

7.8

Entertainment

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Singapore Airlines
8.2
Very Good
1,471 reviews
Singapore Airlines
8.2
Very Good
1,471 reviews
Check prices

Crew

8.6

Boarding

8.3

Overall

8.2

Food

7.8

Entertainment

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Qantas Airways
7.5
Good
1,002 reviews
Singapore Airlines
8.2
Very Good
1,471 reviews
Check prices

Crew

8.6

Boarding

8.3

Overall

8.2

Food

7.8

Entertainment

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.
Scoot
6.7
Okay
320 reviews
Singapore Airlines
8.2
Very Good
1,471 reviews
Check prices

Crew

8.6

Boarding

8.3

Overall

8.2

Food

7.8

Entertainment

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Related info for your journey

Find useful and relevant information for your journey from Perth to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Perth to Ko Samui?

    Departing from Perth to Ko Samui will take you 8h 25m. The distance from Perth to Ko Samui is about 4910 km. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Perth to Ko Samui round-trip?

    Our cheapest airline available from Perth to Ko Samui is Scoot. Our recent data shows that you can find tickets from as low as $459 on this airline. Additional options worth looking into are Singapore Airlines and Qantas Airways, starting at $796 and $902 round-trip. Users have found that Scoot is 45% cheaper than the other options available to this destination.

  • Can I find deals for flights from Perth to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Perth to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Perth to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Perth to Ko Samui.

  • Can I find deals for business class flights from Perth to Ko Samui?

    Yes. Cheapflights offers flight deals from Perth to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Perth to Ko Samui?

    Currently, October is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $430). Flying from Perth to Ko Samui in December is currently the most expensive (average of $790). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Perth to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Perth to Suvarnabhumi flights
Perth to Phuket City flights
Perth to Don Mueang Intl flights
Perth to Krabi flights
Perth to Chiang Mai flights
Perth to Surat Thani flights

Top 3 airlines flying from Perth to Ko Samui

Discover the top 3 airlines that operate flights from Perth to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$459Average$683FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$796Average$1,121FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$902Average$1,182FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Perth to Ko Samui?

Cheapflights makes it easy to find Perth to Ko Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Perth to Ko Samui?

Millions of users choose and trust Cheapflights to book the best flight deals from Perth to Ko Samui for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Perth to Ko Samui with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Perth to Ko Samui flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Perth to Ko Samui become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ko Samui from Perth today and book when prices fit your budget.

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