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Cheap flights from Perth to Ko Samui from $270

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
PER — USM
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

$620

One-way from

$270

Popular in

December

Cheapest in

October

Average price

$947
Scoot
  • Scoot
  • 5/8-16/8
  • 2 total stops
  • 49h 20m total
  • Perth to Ko Samui
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Scoot
  • Scoot
  • 15/8
  • 1 total stop
  • 19h 50m total
  • Perth to Ko Samui
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($405 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($82 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Perth to Ko Samui

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 13 June 2025.

Tue 5/818:25PER - USM
1 stop25h 05mScoot
Sat 16/819:25USM - PER
1 stop24h 15mScoot
Deal found 11/6$620
Tue 19/818:25PER - USM
1 stop25h 05mMultiple Airlines
Sat 30/819:25USM - PER
2 stops32h 05mMultiple Airlines
Deal found 10/6$640
Mon 4/801:10PER - USM
1 stop16h 35mSingapore Airlines
Fri 15/817:40USM - PER
1 stop17h 50mSingapore Airlines
Deal found 11/6$999
Thu 18/1209:25PER - USM
1 stop23h 20mThai Airways
Sun 28/1219:10USM - PER
1 stop19h 10mThai Airways
Deal found 9/6$1,329
Mon 21/700:25PER - USM
2 stops21h 45mVietnam Airlines
Sat 2/808:20USM - PER
2 stops13h 10mVietnam Airlines
Deal found 10/6$1,764
Sat 28/602:10PER - USM
2 stops15h 55mMalaysia Airlines
Thu 10/719:00USM - PER
2 stops29h 10mMalaysia Airlines
Deal found 10/6$2,184

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 13 June 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 11/11

21:30-08:00

1 stop11h 30m

Ko Samui

Tue 9/12

08:55-20:15

1 stop10h 20m

$589

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 10/9

21:55-16:35

2 stops19h 40m

Ko Samui

Mon 15/9

07:00-20:40

2 stops12h 40m

$640

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 4/8

01:10-16:45

1 stop16h 35m

Ko Samui

Fri 15/8

17:40-12:30

1 stop17h 50m

$999

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 25/7

02:10-16:50

2 stops15h 40m

Ko Samui

Sat 2/8

08:45-01:10

2 stops15h 25m

$2,462

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 25/6

08:50-21:10

2 stops13h 20m

Ko Samui

Fri 4/7

13:30-00:40

1 stop10h 10m

$3,036

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 15/8

21:55-16:45

1 stop19h 50m

$270

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 15/8

21:55-11:55

2 stops15h 00m

$388

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 4/10

00:25-20:30

2 stops21h 05m

$887

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 4/10

02:10-21:35

2 stops20h 25m

$893

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 4/10

01:10-11:10

1 stop11h 00m

$912

Flights are sorted by cheapest return flights first.

Deals found on 10/6

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 9 June 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, August is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $533). Flying from Perth to Ko Samui in December is currently the most expensive (average of $1,051). 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 13 June 2025.

A simple way to save on the total cost of your ticket is to fly from Perth to Ko Samui in the afternoon. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the morning.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

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 13 June 2025.
Singapore Airlines
8.1
Very Good
1,304 reviews
Check prices

Food

7.7

Comfort

7.9

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very Good
1,304 reviews
Singapore Airlines
8.1
Very Good
1,304 reviews
Check prices

Food

7.7

Comfort

7.9

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Cathay Pacific
7.6
Good
892 reviews
Singapore Airlines
8.1
Very Good
1,304 reviews
Check prices

Food

7.7

Comfort

7.9

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qantas Airways
7.5
Good
854 reviews
Singapore Airlines
8.1
Very Good
1,304 reviews
Check prices

Food

7.7

Comfort

7.9

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Vietnam Airlines
7.5
Good
194 reviews
Singapore Airlines
8.1
Very Good
1,304 reviews
Check prices

Food

7.7

Comfort

7.9

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Malaysia Airlines
7.4
Good
263 reviews
Singapore Airlines
8.1
Very Good
1,304 reviews
Check prices

Food

7.7

Comfort

7.9

Entertainment

8.0

Overall

8.1

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

  • 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 $620 on this airline. Additional options worth looking into are Singapore Airlines and Vietnam Airlines, starting at $999 and $1,764 round-trip. Users have found that Scoot is 35% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Perth to Ko Samui one-way?

    One-way options have recently been found by users for as low as $270 on Scoot. Other airlines that offer cheap prices include Singapore Airlines from $995 and Malaysia Airlines from $1,205 one-way.

  • 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, August is the cheapest month in which you can book a flight from Perth to Ko Samui (average of $533). Flying from Perth to Ko Samui in December is currently the most expensive (average of $1,051). 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 Perth?

Book flights to Perth if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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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 5 airlines flying from Perth to Ko Samui

Discover the top 5 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$511Average$723FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$826Average$1,102FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$1,075Average$1,750FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Bangkok AirwaysCheapest$1,119Average$1,219FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Thai AirwaysCheapest$1,123Average$1,336FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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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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