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

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Koh Samui (USM) to Perth (PER), with fares starting from $321.

What is the lowest current fare from USM to PER?

The lowest currently-listed fare from Koh Samui (USM) to Perth (PER) is $321 on 2026-08-11.

Is there a direct flight from Koh Samui to Perth?

There is currently no non-stop service from USM to PER. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Koh Samui to Perth

Cheapest current fares: $321 in August 2026 on connecting flights.

Last updated August 8, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Koh Samui (USM) to Perth (PER). Refreshed daily.

Koh Samui (USM) → Perth (PER)

August 2026 $321

Frequently asked questions

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

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Koh Samui (USM) to Perth (PER), with fares starting from $321.
What is the lowest current fare from USM to PER?

The lowest currently-listed fare from Koh Samui (USM) to Perth (PER) is $321 on 2026-08-11.
Is there a direct flight from Koh Samui to Perth?

There is currently no non-stop service from USM to PER. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.