PER - USM

฿7,832 Find Cheap Flights from Perth to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
฿15,862
Typical prices: ฿18,325-฿29,530
Multiple Airlines
Mon 15/10Sun 21/10
PER - USM • 1 stop
Cheapest one-way flight
฿7,832
Typical prices: ฿7,691-฿16,548
Multiple Airlines
Thu 18/10
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 ฿25,076 (return)
Phuket City (HKT)
Shortest trip • 10h 26m (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 15 Oct - Wed 21 Oct
Multiple Airlines Logo
07:30 - 20:25PER  Perth-USM Ko Samui
13h 55m1 stop Phuket City
Multiple Airlines Logo
19:00 - 04:20USM  Ko Samui-PER Perth
32h 20m2 stops Phuket City Singapore Changi
฿15,862Multiple Airlines
Fri 16 Oct - Fri 23 Oct
Multiple Airlines Logo
16:00 - 18:00PER  Perth-USM Ko Samui
27h 00m1 stop Phuket City
Multiple Airlines Logo
19:00 - 04:20USM  Ko Samui-PER Perth
32h 20m2 stops Phuket City Singapore Changi
฿15,928Multiple Airlines
Wed 14 Oct - Wed 21 Oct
Multiple Airlines Logo
16:00 - 20:25PER  Perth-USM Ko Samui
29h 25m1 stop Phuket City
Multiple Airlines Logo
19:00 - 04:20USM  Ko Samui-PER Perth
32h 20m2 stops Phuket City Singapore Changi
฿15,994Multiple Airlines
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
฿16,523Scoot
Wed 14 Oct - Sun 18 Oct
Multiple Airlines Logo
16:00 - 10:30PER  Perth-USM Ko Samui
19h 30m1 stop Phuket City
Multiple Airlines Logo
21:00 - 04:20USM  Ko Samui-PER Perth
30h 20m2 stops Bangkok Suvarnabhumi Singapore Changi
฿16,556Multiple Airlines
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
฿17,085Scoot
Tue 13 Oct - Wed 21 Oct
Multiple Airlines Logo
00:45 - 20:25PER  Perth-USM Ko Samui
20h 40m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
11:25 - 17:10USM  Ko Samui-PER Perth
28h 45m2 stops Phuket City Singapore Changi
฿17,151Multiple Airlines
Fri 16 Oct - Thu 29 Oct
Scoot Logo
05:35 - 17:20PER  Perth-USM Ko Samui
12h 45m1 stop Singapore Changi
Scoot Logo
19:45 - 16:35USM  Ko Samui-PER Perth
19h 50m1 stop Singapore Changi
฿17,184Scoot
Tue 27 Oct - Tue 3 Nov
Multiple Airlines Logo
20:50 - 10:40PER  Perth-USM Ko Samui
14h 50m2 stops Kuala Lumpur Intl Phuket City
Multiple Airlines Logo
21:30 - 05:35USM  Ko Samui-PER Perth
31h 05m1 stop Bangkok Suvarnabhumi
฿17,316Multiple 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
฿17,349Multiple 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.

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 ฿16,655 return.
  • December (฿41,605) and January (฿26,470) 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

฿7,832
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 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 ฿23,066 return on average, while Wednesday is the most expensive at ฿24,950, a difference of ฿1,884. 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 Chaweng Beach, Lamai Beach, and Hin Ta and Hin Yai Rocks. 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 ฿23,593. 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 ฿8,565, which is 22% 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 ฿448 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 ฿18,325 to ฿29,530, with an average of ฿23,593 over the past 12 months. Anything below ฿18,325 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 ฿23,066 – about ฿1,884 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 ฿16,655 return in that month – typically ฿24,950 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
    - Cosi Samui Chaweng Beach
    - Melia 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 rentals in Ko Samui
Hotels in Ko Samui