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Cheap flights from Perth to Ko Samui from $277

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
PER — USM
30 Mar — 6 Apr1
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 25 March 2025.

Round-trip from

$657

One-way from

$277

Popular in

December

Cheapest in

October

Average price

$786
7/5-13/5
  • 7/5-13/5
  • 3 total stops
  • 53h 45m total
  • Perth to Ko Samui
Search Deals
Scoot
  • Scoot
  • 20/5
  • 1 total stop
  • 21h 35m total
  • Perth to Ko Samui
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($494 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($94 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 25 March 2025.

Wed 7/521:55PER - USM
1 stop21h 35mMultiple Airlines
Tue 13/508:00USM - PER
2 stops32h 10mMultiple Airlines
Deal found 25/3$657
Thu 8/518:25PER - USM
1 stop14h 25mScoot
Thu 15/508:45USM - PER
1 stop10h 55mScoot
Deal found 24/3$679
Mon 19/501:10PER - USM
1 stop18h 20mSingapore Airlines
Tue 27/508:45USM - PER
1 stop14h 10mSingapore Airlines
Deal found 24/3$862
Mon 23/602:10PER - USM
2 stops12h 35mMalaysia Airlines
Wed 9/708:45USM - PER
2 stops15h 25mMalaysia Airlines
Deal found 24/3$1,121
Sat 27/1209:25PER - USM
1 stop27h 35mThai Airways
Tue 6/110:00USM - PER
1 stop28h 20mThai Airways
Deal found 24/3$1,354
Thu 1/500:25PER - USM
2 stops46h 10mVietnam Airlines
Mon 19/508:00USM - PER
2 stops13h 30mVietnam Airlines
Deal found 25/3$1,454
Fri 2/500:10PER - USM
1 stop19h 25mCathay Pacific
Sat 10/510:55USM - PER
1 stop19h 50mCathay Pacific
Deal found 24/3$1,521
Wed 16/712:25PER - USM
1 stop9h 45mQantas Airways
Sat 19/708:20USM - PER
1 stop15h 20mQantas Airways
Deal found 24/3$1,759
Sat 17/508:45PER - USM
2 stops24h 30mPhilippine Airlines
Sat 24/519:15USM - PER
2 stops35h 10mPhilippine Airlines
Deal found 24/3$1,922

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 25 March 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

Wed 7/5

21:55-18:30

1 stop21h 35m

Ko Samui

Tue 13/5

08:00-17:10

2 stops32h 10m

$657

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 8/5

18:25-07:50

1 stop14h 25m

Ko Samui

Thu 15/5

08:45-20:40

1 stop10h 55m

$679

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 19/5

01:10-18:30

1 stop18h 20m

Ko Samui

Tue 27/5

08:45-23:55

1 stop14h 10m

$862

PerthKo Samui

PER - USM

PERUSM

Perth

Mon 23/6

02:10-13:45

2 stops12h 35m

Ko Samui

Wed 9/7

08:45-01:10

2 stops15h 25m

$1,121

PerthKo Samui

PER - USM

PERUSM

Perth

Thu 1/5

00:25-21:35

2 stops46h 10m

Ko Samui

Mon 19/5

08:00-22:30

2 stops13h 30m

$1,454

PerthKo Samui

PER - USM

PERUSM

Perth

Fri 2/5

00:10-18:35

1 stop19h 25m

Ko Samui

Sat 10/5

10:55-07:45

1 stop19h 50m

$1,521

PerthKo Samui

PER - USM

PERUSM

Perth

Wed 16/7

12:25-21:10

1 stop9h 45m

Ko Samui

Sat 19/7

08:20-00:40

1 stop15h 20m

$1,759

PerthKo Samui

PER - USM

PERUSM

Perth

Sat 17/5

08:45-08:15

2 stops24h 30m

Ko Samui

Sat 24/5

19:15-07:25

2 stops35h 10m

$1,922

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 20/5

21:55-18:30

1 stop21h 35m

$277

PerthKo Samui

PER - USM

PERUSM

Perth

Tue 20/5

21:55-17:05

2 stops20h 10m

$340

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 11 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 21 March 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 36 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 25 March 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 25 March 2025.
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

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
1,284 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

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
7.6
Good
192 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

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
7.5
Good
834 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

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
809 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

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
7.3
Good
252 reviews
Singapore Airlines
8.1
Very Good
1,284 reviews
Check prices

Crew

8.6

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.7

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 $679 on this airline. Additional options worth looking into are Singapore Airlines and Malaysia Airlines, starting at $862 and $1,121 round-trip. Users have found that Scoot is 31% 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, 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 Pha Ngan
Ko Tao

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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
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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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$526Average$762FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Singapore AirlinesCheapest$812Average$1,108FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Thai AirwaysCheapest$1,114Average$1,407FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Bangkok AirwaysCheapest$1,160Average$1,263FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Qantas AirwaysCheapest$1,399Average$2,342FlexibilityNo cancel feeOn-time74%
Search Qantas 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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