What is the cheapest month to fly from Sihanoukville to Istanbul?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Sihanoukville (KOS) to Istanbul (IST), with fares starting from $442.

What is the lowest current fare from KOS to IST?

The lowest currently-listed fare from Sihanoukville (KOS) to Istanbul (IST) is $442 on 2026-09-14.

Is there a direct flight from Sihanoukville to Istanbul?

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

Cheap flights from Sihanoukville to Istanbul

Cheapest current fares: $442 in September 2026 on connecting flights.

Last updated August 11, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Sihanoukville (KOS) to Istanbul (IST). Refreshed daily.

Sihanoukville (KOS) → Istanbul (IST)

September 2026 $442

Frequently asked questions

What is the cheapest month to fly from Sihanoukville to Istanbul?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Sihanoukville (KOS) to Istanbul (IST), with fares starting from $442.
What is the lowest current fare from KOS to IST?

The lowest currently-listed fare from Sihanoukville (KOS) to Istanbul (IST) is $442 on 2026-09-14.
Is there a direct flight from Sihanoukville to Istanbul?

There is currently no non-stop service from KOS to IST. 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.