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Cheap flights from Perth to Ko Samui from $257

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
PER — USM
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 31 October 2025.

Round-trip from

$472

One-way from

$257

Popular in

December

Cheapest in

August

Average price

$722
Scoot
  • Scoot
  • 10/11-18/11
  • 2 total stops
  • 32h 35m total
  • Perth to Ko Samui
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Scoot
  • Scoot
  • 15/11
  • 1 total stop
  • 27h 25m total
  • Perth to Ko Samui
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($262 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($71 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 31 October 2025.

Mon 10/1105:35PER - USM
1 stop14h 15mScoot
Tue 18/1108:55USM - PER
1 stop18h 20mScoot
Deal found 28/10$471
Mon 10/1105:35PER - USM
1 stop14h 15mScoot
Mon 17/1108:55USM - PER
1 stop18h 20mScoot
Deal found 28/10$531
Fri 21/1105:35PER - USM
1 stop12h 35mScoot
Sun 30/1108:55USM - PER
1 stop18h 20mScoot
Deal found 28/10$538
Thu 27/1105:35PER - USM
1 stop12h 35mScoot
Thu 4/1208:55USM - PER
1 stop18h 20mScoot
Deal found 28/10$588
Mon 10/1105:35PER - USM
1 stop14h 15mMultiple Airlines
Tue 18/1118:15USM - PER
2 stops33h 15mMultiple Airlines
Deal found 29/10$647
Mon 10/1105:35PER - USM
1 stop14h 15mMultiple Airlines
Mon 17/1108:15USM - PER
2 stops19h 15mMultiple Airlines
Deal found 28/10$650
Sun 16/1105:35PER - USM
1 stop12h 35mMultiple Airlines
Thu 20/1115:50USM - PER
2 stops11h 40mMultiple Airlines
Deal found 30/10$656
Thu 27/1105:35PER - USM
1 stop27h 25mScoot
Thu 19/308:55USM - PER
1 stop18h 20mScoot
Deal found 27/10$668
Fri 21/1105:35PER - USM
1 stop12h 35mMultiple Airlines
Sun 30/1118:15USM - PER
2 stops33h 15mMultiple Airlines
Deal found 28/10$672

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 31 October 2025.
Use the filters below to find and compare flights from Perth to Ko Samui that are best for you.

Fly from

Perth

Fly to

Ko Samui

Route

Depart

Return

Price

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 21/11

05:35-17:10

1 stop12h 35m

Ko Samui

Sun 30/11

18:15-04:30

2 stops33h 15m

$672

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 11/11

05:35-08:00

1 stop27h 25m

Ko Samui

Tue 9/12

08:55-04:15

1 stop18h 20m

$918

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 15/12

20:25-17:10

2 stops21h 45m

Ko Samui

Mon 22/12

08:15-04:30

2 stops19h 15m

$1,045

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 17/12

05:35-11:55

3 stops31h 20m

Ko Samui

Wed 24/12

18:05-04:15

1 stop9h 10m

$1,115

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 13/12

04:55-17:10

2 stops13h 15m

Ko Samui

Sun 21/12

08:15-22:10

1 stop12h 55m

$1,142

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 13/12

05:35-17:10

1 stop12h 35m

Ko Samui

Sat 20/12

09:20-22:10

1 stop11h 50m

$1,154

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 9/11

02:25-13:05

2 stops11h 40m

Ko Samui

Tue 18/11

10:00-01:25

2 stops14h 25m

$1,229

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 10/11

01:15-11:00

1 stop10h 45m

Ko Samui

Tue 9/12

19:45-05:25

1 stop8h 40m

$1,252

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 15/11

05:35-08:00

1 stop27h 25m

$257

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 21/11

05:35-08:00

1 stop27h 25m

$271

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 17 results
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 24 October 2025.

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 33 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 $463). Flying from Perth to Ko Samui in January is currently the most expensive (average of $834). 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.

What is the cheapest time of day to fly from PER to USM?

Find hourly flight availability from Perth to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

A simple way to save on the total cost of your ticket is to fly from Perth to Ko Samui in the evening. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the morning.

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 31 October 2025.
Read reviews from past customers who have flown with Singapore Airlines, Thai Airways, andQantas Airways 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
8.1
Very Good
1,389 reviews
Check prices

Boarding

8.3

Crew

8.6

Overall

8.1

Food

7.7

Comfort

8.0

Entertainment

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
8.1
Very Good
1,389 reviews
Singapore Airlines
8.1
Very Good
1,389 reviews
Check prices

Boarding

8.3

Crew

8.6

Overall

8.1

Food

7.7

Comfort

8.0

Entertainment

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.
Thai Airways
7.8
Good
361 reviews
Singapore Airlines
8.1
Very Good
1,389 reviews
Check prices

Boarding

8.3

Crew

8.6

Overall

8.1

Food

7.7

Comfort

8.0

Entertainment

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
926 reviews
Singapore Airlines
8.1
Very Good
1,389 reviews
Check prices

Boarding

8.3

Crew

8.6

Overall

8.1

Food

7.7

Comfort

8.0

Entertainment

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
309 reviews
Singapore Airlines
8.1
Very Good
1,389 reviews
Check prices

Boarding

8.3

Crew

8.6

Overall

8.1

Food

7.7

Comfort

8.0

Entertainment

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 27h 25m. 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 $493 on this airline. Additional options worth looking into are Singapore Airlines and Qantas Airways, starting at $820 and $932 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, October is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $463). Flying from Perth to Ko Samui in January is currently the most expensive (average of $834). 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 4 airlines flying from Perth to Ko Samui

Discover the top 4 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$493Average$734FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$820Average$1,070FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$932Average$1,341FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Thai AirwaysCheapest$1,213Average$1,263FlexibilityNo cancel feeOn-time77%
Search Thai 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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