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Cheap flights from Perth to Ko Samui from $299

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
PER — USM
8 Jun — 15 Jun1
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 9 May 2026.

Thu 5/1105:35
PER
-
USM
1 stop12h 35m
Scoot
Sun 15/1108:55
USM
-
PER
1 stop18h 20m
Scoot
Deal found 5/5$666
Sun 7/607:30
PER
-
USM
1 stop10h 25m
Multiple Airlines
Thu 18/608:40
USM
-
PER
1 stop18h 40m
Multiple Airlines
Deal found 7/5$672
Sun 7/607:30
PER
-
USM
1 stop10h 25m
Multiple Airlines
Sun 14/619:00
USM
-
PER
2 stops32h 20m
Multiple Airlines
Deal found 5/5$692
Thu 10/905:35
PER
-
USM
2 stops12h 20m
Multiple Airlines
Mon 14/917:55
USM
-
PER
1 stop26h 50m
Multiple Airlines
Deal found 4/5$742
Tue 4/805:35
PER
-
USM
1 stop14h 15m
Scoot
Thu 13/808:40
USM
-
PER
1 stop18h 40m
Scoot
Deal found 5/5$744
Sat 1/805:35
PER
-
USM
1 stop14h 15m
Scoot
Tue 11/808:40
USM
-
PER
1 stop22h 30m
Scoot
Deal found 7/5$751

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 9 May 2026.

Round-trip from

$666

One-way from

$299

Popular in

December

Cheapest in

November

Average price

$629
Scoot
  • Scoot
  • 5/11-15/11
  • 2 total stops
  • 30h 55m total
  • Perth to Ko Samui
Search Deals
Scoot
  • Scoot
  • 1/8
  • 1 total stop
  • 14h 15m total
  • Perth to Ko Samui
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($182 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($61 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 9 May 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

Wed 26/8

23:15-17:20

2 stops19h 05m

Ko Samui

Mon 31/8

09:15-04:20

2 stops18h 05m

$990

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 24/5

07:30-20:25

1 stop13h 55m

Ko Samui

Tue 2/6

18:15-17:10

1 stop21h 55m

$1,002

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 25/6

16:30-18:50

2 stops27h 20m

Ko Samui

Fri 3/7

15:25-04:20

2 stops35h 55m

$1,009

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 27/10

05:35-18:50

1 stop14h 15m

Ko Samui

Wed 28/10

12:00-04:15

1 stop15h 15m

$1,033
Fastest return journey

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 3/6

02:10-13:45

2 stops12h 35m

Ko Samui

Tue 16/6

09:15-01:10

2 stops14h 55m

$1,587

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 28/5

02:10-13:45

2 stops12h 35m

Ko Samui

Sat 6/6

09:15-01:10

2 stops14h 55m

$1,627
Cheapest one-way

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 16/10

05:35-17:20

1 stop12h 45m

$307

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 22/8

05:35-17:20

1 stop12h 45m

$346

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 16/9

09:55-08:25

2 stops23h 30m

$366

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 16/10

05:35-20:25

2 stops15h 50m

$372

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 14 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?

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 83 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, November is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $554). Flying from Perth to Ko Samui in December is currently the most expensive (average of $1,321). 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.

How much does it cost for a return flight from Perth to Ko Samui?

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 9 May 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
1,511 reviews
Check prices

Comfort

8.0

Overall

8.2

Boarding

8.3

Food

7.8

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Singapore Airlines
8.2
Very Good
1,511 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Comfort

8.0

Overall

8.2

Boarding

8.3

Food

7.8

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Qantas Airways
7.5
Good
1,033 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Comfort

8.0

Overall

8.2

Boarding

8.3

Food

7.8

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Scoot
6.7
Okay
326 reviews
Singapore Airlines
8.2
Very Good
1,511 reviews
Check prices

Comfort

8.0

Overall

8.2

Boarding

8.3

Food

7.8

Crew

8.6

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

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 14h 15m. The distance from Perth to Ko Samui is about 4910 km.

  • 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 $445 on this airline. Additional options worth looking into are Singapore Airlines and Qantas Airways, starting at $860 and $876 round-trip. Users have found that Scoot is 46% 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, November is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $554). Flying from Perth to Ko Samui in December is currently the most expensive (average of $1,321). 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

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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 Don Mueang Intl flights
Perth to Phuket City flights
Perth to Chiang Mai flights
Perth to Krabi 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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$445Average$699FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$860Average$1,177FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$876Average$1,092FlexibilityNo 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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