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Cheap flights from Perth to Ko Samui from $450

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
PER — USM
14 Dec — 21 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 14 November 2025.

Round-trip from

$592

One-way from

$459

Popular in

December

Cheapest in

August

Average price

$656
Scoot
  • Scoot
  • 7/3-21/3
  • 2 total stops
  • 30h 55m total
  • Perth to Ko Samui
Search Deals
10/12
  • 10/12
  • 2 total stops
  • 21h 30m total
  • Perth to Ko Samui
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($257 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($76 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 14 November 2025.

Tue 2/1205:35PER - USM
1 stop27h 25mScoot
Sat 6/1208:55USM - PER
1 stop18h 20mScoot
Deal found 12/11$656
Tue 2/1220:25PER - USM
2 stops23h 25mMultiple Airlines
Sat 6/1208:55USM - PER
1 stop18h 20mMultiple Airlines
Deal found 12/11$723
Tue 30/1203:35PER - USM
2 stops16h 15mMultiple Airlines
Wed 7/108:15USM - PER
2 stops19h 00mMultiple Airlines
Deal found 12/11$1,680
Wed 31/1203:35PER - USM
2 stops18h 10mMultiple Airlines
Thu 8/112:20USM - PER
2 stops14h 55mMultiple Airlines
Deal found 13/11$1,686
Wed 31/1205:35PER - USM
1 stop14h 15mScoot
Wed 7/108:55USM - PER
1 stop30h 35mScoot
Deal found 12/11$1,720

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 14 November 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

Tue 2/12

20:25-17:10

2 stops21h 45m

Ko Samui

Tue 16/12

08:15-04:30

2 stops19h 15m

$757

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 2/12

20:25-18:50

2 stops23h 25m

Ko Samui

Sat 6/12

08:55-04:40

2 stops18h 45m

$804

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 26/3

01:40-17:10

2 stops16h 30m

Ko Samui

Fri 3/4

12:30-04:00

2 stops14h 30m

$940

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 17/1

03:35-08:00

2 stops29h 25m

Ko Samui

Sun 25/1

08:55-04:40

2 stops18h 45m

$951

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 20/4

12:25-18:15

1 stop30h 50m

Ko Samui

Thu 30/4

08:20-00:40

1 stop15h 20m

$1,009

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 5/1

19:00-17:10

2 stops47h 10m

Ko Samui

Mon 2/2

08:55-04:15

1 stop18h 20m

$1,070

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 19/4

02:10-13:45

2 stops12h 35m

Ko Samui

Thu 30/4

09:15-01:10

2 stops14h 55m

$1,088

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 14/3

05:35-18:50

1 stop14h 15m

Ko Samui

Wed 18/3

08:55-04:15

1 stop18h 20m

$1,172

PerthKo Samui

PER - USM

PERUSM

Perth

Sun 15/2

08:00-17:30

1 stop10h 30m

$450

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 10/12

20:40-17:10

2 stops21h 30m

$459

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 12 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 7 November 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 $464). Flying from Perth to Ko Samui in December is currently the most expensive (average of $812). 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 14 November 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 14 November 2025.
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
8.1
Very Good
1,401 reviews
Check prices

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.6

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
1,401 reviews
Singapore Airlines
8.1
Very Good
1,401 reviews
Check prices

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.6

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
934 reviews
Singapore Airlines
8.1
Very Good
1,401 reviews
Check prices

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.6

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
1,401 reviews
Check prices

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.6

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 30h 50m. 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 $494 on this airline. Additional options worth looking into are Singapore Airlines and Qantas Airways, starting at $822 and $934 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 $464). Flying from Perth to Ko Samui in December is currently the most expensive (average of $812). 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 Phuket City flights
Perth to Don Mueang Intl 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$494Average$736FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$822Average$1,070FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$934Average$1,344FlexibilityNo 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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