PER - USM

$348 Find Cheap Flights from Perth to Ko Samui – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
$733
Typical prices: $803-$1,335
Scoot
Sun 18/2Mon 19/2
PER - USM • 1 stop
Cheapest one-way flight
$348
Typical prices: $347-$819
Scoot
Sat 27/1
PER - USM • 1 stop
Direct flights
Not available
There are currently no direct flights between Perth and Ko Samui. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
13 weeks
in advance
Our data shows that travellers who book at least 13 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 31% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Singapore Changi (SIN)
Cheapest • Avg $1,129 (return)
Phuket City (HKT)
Shortest trip • 10h 21m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Perth to Ko Samui (PER-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Perth to Ko Samui

Thu, 18 Feb - Fri, 19 Feb
Scoot Logo
10:35 - 18:55PER  Perth-USM Ko Samui
9h 20m1 stop Singapore Changi
Scoot Logo
19:50 - 08:25USM  Ko Samui-PER Perth
11h 35m1 stop Singapore Changi
$733Scoot
3+ days ago
Wed, 17 Feb - Mon, 22 Feb
Scoot Logo
10:35 - 18:55PER  Perth-USM Ko Samui
9h 20m1 stop Singapore Changi
Scoot Logo
08:55 - 08:25USM  Ko Samui-PER Perth
22h 30m1 stop Singapore Changi
$740Scoot
3+ days ago
Sat, 20 Feb - Thu, 25 Feb
Scoot Logo
10:35 - 18:55PER  Perth-USM Ko Samui
9h 20m1 stop Singapore Changi
Scoot Logo
19:50 - 08:25USM  Ko Samui-PER Perth
11h 35m1 stop Singapore Changi
$744Scoot
3+ days ago
Thu, 18 Feb - Thu, 25 Feb
Multiple Airlines Logo
10:35 - 18:55PER  Perth-USM Ko Samui
9h 20m1 stop Singapore Changi
Multiple Airlines Logo
12:00 - 03:40USM  Ko Samui-PER Perth
14h 40m2 stops Singapore Changi Kuala Lumpur Intl
$749Multiple Airlines
3+ days ago
Sat, 20 Feb - Thu, 25 Feb
Multiple Airlines Logo
10:35 - 18:55PER  Perth-USM Ko Samui
9h 20m1 stop Singapore Changi
Multiple Airlines Logo
12:00 - 03:40USM  Ko Samui-PER Perth
14h 40m2 stops Singapore Changi Kuala Lumpur Intl
$760Multiple Airlines
3+ days ago
Wed, 17 Feb - Thu, 25 Feb
Multiple Airlines Logo
10:35 - 18:55PER  Perth-USM Ko Samui
9h 20m1 stop Singapore Changi
Multiple Airlines Logo
12:00 - 03:40USM  Ko Samui-PER Perth
14h 40m2 stops Singapore Changi Kuala Lumpur Intl
$763Multiple Airlines
3+ days ago
Sat, 24 Apr - Tue, 4 May
Qantas Airways Logo
12:15 - 18:15PER  Perth-USM Ko Samui
31h 00m1 stop Singapore Changi
Qantas Airways Logo
13:30 - 00:40USM  Ko Samui-PER Perth
10h 10m1 stop Singapore Changi
$1,159Qantas Airways
22 hours ago
Tue, 2 Mar - Fri, 12 Mar
Qantas Airways Logo
10:30 - 21:05PER  Perth-USM Ko Samui
11h 35m1 stop Singapore Changi
Qantas Airways Logo
13:25 - 23:55USM  Ko Samui-PER Perth
9h 30m1 stop Singapore Changi
$1,160Qantas Airways
2 days ago
Fri, 5 Mar - Mon, 8 Mar
Singapore Airlines Logo
06:40 - 18:55PER  Perth-USM Ko Samui
13h 15m1 stop Singapore Changi
Singapore Airlines Logo
08:55 - 05:25USM  Ko Samui-PER Perth
19h 30m1 stop Singapore Changi
$1,399Singapore Airlines
2 days ago
Fri, 5 Mar - Sat, 13 Mar
Singapore Airlines Logo
06:40 - 18:55PER  Perth-USM Ko Samui
13h 15m1 stop Singapore Changi
Singapore Airlines Logo
08:55 - 05:25USM  Ko Samui-PER Perth
19h 30m1 stop Singapore Changi
$1,399Singapore Airlines
2 days ago
Booking Insights

Price, demand, and travel trends for Perth to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Perth to Ko Samui?

Return flights from Perth to Ko Samui typically range from $803 to $1,335. The lowest price found in the past 5 days was $733 on Scoot.

What's the cheapest day of the week to fly from Perth to Ko Samui?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Perth to Ko Samui. It’s 9% cheaper than the average day, while Tuesday is the most expensive, with prices 6% higher.

What is the cheapest month to fly from Perth to Ko Samui?

•November is the cheapest month to fly from Perth to Ko Samui at $736 return.
•December ($1,878) and January ($1,190) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 155% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Perth to Ko Samui the cheapest?

Flights from Perth to Ko Samui are cheapest 13 weeks before departure. Booking in this window typically costs about 26% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Perth to Ko Samui flights

Low season

March

Cheapest flight

$348
Beat the crowds with an average 33% drop in traveller numbers.
The most popular month to fly with an average 58% increase in traveller numbers.
One-way flight from Perth to Ko Samui

When to book flights from Perth to Ko Samui

Are your dates flexible? Find out the best times to travel from Perth to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Perth to Ko Samui flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Perth to Ko Samui?

    Two cabin classes are available on flights from Perth to Ko Samui:

    • Economy class
    • Business Class

  • How long is a flight from Perth to Ko Samui?

    A direct flight from Perth to Ko Samui takes 00m, covering 7,902 km.

  • Do I need a passport to fly from Perth to Ko Samui?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Perth to Ko Samui flight?

    Return flights from Perth to Ko Samui range from $803 to $1,335, with an average of $1,067 over the past 12 months. Anything below $803 counts as a good deal.

  • How expensive are last-minute Perth to Ko Samui flights?

    Last-minute fares on this route (booked within two weeks of departure) run 15% above the $1,067 route average. Book 13 weeks before departure for the lowest fares.

  • Have flight prices from Perth to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about $733 to $4,101. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Perth to Ko Samui looking right now?

    One-way fares from Perth to Ko Samui are currently lower than usual. Average one-way flight prices are about $431, which is 19% below the typical average for this route.

  • Which car hire options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • Which airports can I use when flying from Perth to Ko Samui?

    Flights from Perth to Ko Samui usually depart from Perth (PER) and arrive at Ko Samui (USM).

  • Which airports do connecting flights from Perth to Ko Samui pass through?

    One-stop flights from Perth to Ko Samui most commonly connect through:

    • Singapore Changi (SIN) – 92% of one-stop connections
    • Phuket City (HKT) – 7% of one-stop connections
    • Bangkok Suvarnabhumi (BKK) – 2% of one-stop connections

  • Can I save money by using flexible dates for flights from Perth to Ko Samui?

    Yes. Flexible dates can save you up to 15% on flights from Perth to Ko Samui. Friday is the cheapest departure day at $972 return on average, while Tuesday is the most expensive at $1,138, a difference of $166.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Perth to Ko Samui?

    Flying via Phuket City (HKT) gives the shortest average 1-stop total travel time of 10h 21m, compared to 10h 55m via Singapore Changi (SIN) and 11h 06m via Bangkok Suvarnabhumi (BKK).

  • What is the time difference between Perth and Ko Samui?

    Ko Samui is 1 hour behind Perth (Indochina Time vs Western Australia Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

Your guide to booking Perth to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Tuesday. On this route, Friday flights average $972, about $166 less than Tuesday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 26% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Perth to Ko Samui trip for November. Fares historically average $736 return in that month – typically $1,142 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

    • Ozo Chaweng Samui - Sha Extra Plus
    • Melia Koh Samui
    • Amari Koh Samui

More options for your flight from Perth to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Car hire in Ko Samui
Hotels in Ko Samui
Holidays in Ko Samui