PER - USM

$391 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
$693
Typical prices: $768-$1,238
Scoot
Mon 19/2Fri 2/3
PER - USM • 1 stop
Cheapest one-way flight
$319
Typical prices: $322-$694
Scoot
Thu 15/2
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
26 weeks
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 29% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Singapore Changi (SIN)
Cheapest • Avg $1,051 (return)
Phuket City (HKT)
Shortest trip • 10h 26m (one-way)
Insights
Insights
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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

Fri, 19 Feb - Tue, 2 Mar
Scoot Logo
21:10 - 18:50PER  Perth-USM Ko Samui
22h 40m1 stop Singapore Changi
Scoot Logo
18:05 - 19:40USM  Ko Samui-PER Perth
24h 35m1 stop Singapore Changi
$693Scoot
Tue, 13 Oct - Sat, 24 Oct
Scoot Logo
05:35 - 18:50PER  Perth-USM Ko Samui
14h 15m1 stop Singapore Changi
Scoot Logo
18:15 - 04:20USM  Ko Samui-PER Perth
9h 05m1 stop Singapore Changi
$716Scoot
Wed, 14 Oct - Thu, 22 Oct
Multiple Airlines Logo
16:00 - 10:30PER  Perth-USM Ko Samui
19h 30m1 stop Phuket City
Multiple Airlines Logo
12:30 - 17:10USM  Ko Samui-PER Perth
27h 40m2 stops Krabi Singapore Changi
$719Multiple Airlines
Sun, 28 Feb - Sat, 6 Mar
Scoot Logo
21:10 - 18:50PER  Perth-USM Ko Samui
22h 40m1 stop Singapore Changi
Scoot Logo
08:55 - 16:35USM  Ko Samui-PER Perth
30h 40m1 stop Singapore Changi
$719Scoot
Sat, 24 Oct - Sat, 31 Oct
Multiple Airlines Logo
20:50 - 18:25PER  Perth-USM Ko Samui
22h 35m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
08:15 - 04:30USM  Ko Samui-PER Perth
19h 15m2 stops Phuket City Kuala Lumpur Intl
$727Multiple Airlines
Sat, 24 Oct - Sat, 31 Oct
Multiple Airlines Logo
07:30 - 18:00PER  Perth-USM Ko Samui
11h 30m1 stop Phuket City
Multiple Airlines Logo
08:15 - 16:25USM  Ko Samui-PER Perth
31h 10m2 stops Phuket City Ho Chi Minh City
$727Multiple Airlines
Mon, 19 Oct - Thu, 22 Oct
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
$1,111Qantas Airways
Mon, 19 Oct - Thu, 22 Oct
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
$1,113Qantas Airways
Mon, 19 Oct - Thu, 22 Oct
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
$1,114Qantas Airways
Fri, 19 Feb - Tue, 2 Mar
Singapore Airlines Logo
06:40 - 18:15PER  Perth-USM Ko Samui
12h 35m1 stop Singapore Changi
Singapore Airlines Logo
08:55 - 00:05USM  Ko Samui-PER Perth
14h 10m1 stop Singapore Changi
$1,549Singapore Airlines
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 from Perth to Ko Samui with more confidence.

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

Return flights from Perth to Ko Samui start at $693. Prices are below average for this route right now, with typical return fares ranging from $768 to $1,238. The lowest price found in the past 5 days was $693 on Scoot.

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

Thursday is the cheapest day of the week to fly from Perth to Ko Samui and is 3% cheaper than the average day. Wednesday is the most expensive day with flight prices 5% higher than average. Based on deals found by KAYAK users in the last 12 months.

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 $698 return.
  • December ($1,744) and January ($1,110) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 149% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Perth to Ko Samui the cheapest?

Flights from Perth to Ko Samui are cheapest 26 weeks before departure. Booking in this window typically costs about 33% 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

December

Cheapest flight

$319
Best time to beat the crowds but there is an average 76% increase in price.
Most popular time to fly (11% more expensive on average)
Flights 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 route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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 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

  • 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) – 94% of one-stop connections
    • Phuket City (HKT) – 6% of one-stop connections
    • Bangkok Suvarnabhumi (BKK) – 1% of one-stop connections

    Singapore Changi (SIN) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 8% on the Perth to Ko Samui route. Thursday is the cheapest departure day at $967 return on average, while Wednesday is the most expensive at $1,046, a difference of $79. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ko Samui?

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

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

    Last-minute fares on this route (booked within 2 weeks of departure) run 5% above the route average of $989. Book 26 weeks before departure for the lowest fares.

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

    A direct flight from Perth to Ko Samui takes 0h 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 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 $353, which is 23% below the typical average for this route.

  • 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 26m, compared to 10h 58m via Singapore Changi (SIN) and 13h 58m 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.

  • 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 $19 for economy cars. Top options include:
    · Drive Car Rental
    · Alamo
    · Sixt
    · Enterprise Rent-A-Car
    · Hertz

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

    Return flights from Perth to Ko Samui range from $768 to $1,238, with an average of $989 over the past 12 months. Anything below $768 counts as a good deal.

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 Thursday departure instead of Wednesday. On this route, Thursday flights average $967 – about $79 less than Wednesday (8% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 33% 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 $698 return in that month – typically $1,046 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
    - Amari Koh Samui
    - Hyatt Regency 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