Cheap Flights from Perth to Koh Samui
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Prices are from searches made in the last 24 hours and current prices may differ.
Do you need to catch a flight to Perth? Check out our domestic flights to Perth. If Perth is not your closest airport, then here are all our flights to Koh Samui from United Kingdom and flights to Thailand. Maybe a different destination? Here are all the flights from Perth
Average Perth to Koh Samui Return Prices
These are the average prices for Perth to Koh Samui return airfares.
February 2026
£862
March 2026
£717
April 2026
£1,022
June 2026
£652
Did you know...
- Koh Samui has the International Air Transport Association (IATA) code of USM.
- The quickest return flight on this route is 18 hrs 25 mins flying . Stopping over at Singapore
- The distance from Perth to Koh Samui is 4,913 kilometres.
How to get from Perth to Koh Samui
Perth (PER)
to Singapore (SIN)
5h 25m
Layover - 1h 35m
Singapore (SIN)
to Koh Samui (USM)
1h 45m
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