| Route | One Way | Return |
|---|---|---|
| Sydney to Koh Samui flights | $366 | $762 |
| Brisbane to Koh Samui flights | $633 | $1123 |
| Melbourne to Koh Samui flights | $927 |
Prices last updated: 21 Jun 2026 12:41
Cheap Flights to Koh Samui
View Flights to Thailand
Average Prices for Return Flights to Koh Samui
These are the average prices for return airfares to Koh Samui
July 2026
$2,393
August 2026
$1,845
September 2026
$1,630
October 2026
$1,726
November 2026
$1,378
December 2026
$1,804
January 2027
$2,053
February 2027
$1,736
March 2027
$1,427
April 2027
$1,515
Frequently Asked Questions about flying to Koh Samui
When is the cheapest time to travel to Koh Samui?The cheapest month to travel is typically November.
How much do return flights to Koh Samui cost?The best price we found for a return flight to Koh Samui is $762.
What is the cheapest date to fly to Koh Samui?Currently, the cheapest date for a return flight to Koh Samui is 10 November 2026.
What is the cheapest airline that flys to Koh Samui?Currently, the cheapest airline that flys to Koh Samui is Scoot.
How long does a direct flight to Koh Samui take?We were not able to find any direct flights to Koh Samui.
What is the IATA airport code for Koh Samui?The IATA code for Koh Samui is USM. It is located in Thailand at coordinates 9.55171, 100.0635.
When should you book flights to Koh Samui?From our data, you should book flights to Koh Samui 60 days out.
How I Want That Flight can help you
What's the benefit of using I Want That Flight for my Koh Samui flight?Think of us as your personal shortcut to a great deal. Instead of you opening fifty different tabs, we instantly cross-check rates across heaps of airlines and booking sites to score you the sweet spot on pricing. Millions of holidaymakers count on us every year to get them airborne, so you're running with a pretty savvy crowd.
Can you sort me out with direct flights to Koh Samui?100%. As soon as the page finishes loading your options, hit the "Direct" filter. The layovers will vanish, leaving you with only the non-stop routes.
How does I Want That Flight find me the best Koh Samui flights?Once you punch your details into our search tool, we unlock all kinds of handy tricks to map out your journey. We’ll map out the most budget-friendly calendar dates and takeoff slots, and let you slice and dice the data until you pinpoint the exact itinerary that works for you.
I'm still in the planning phase. Can you ping me if Koh Samui fares drop?No worries at all. Just kick off a quick search, drop your email into our price tracker, and we’ll send a heads-up straight to your inbox the moment the price drops.
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