Cheap flights from Phnom Penh to Sihanoukville

One-way fares from $256 · PNH → KOS · prices found by travellers in the last 48 hours

Compare all dates Sihanoukville → Phnom Penh
Cheapest fare
$256

AirAsia Cambodia · Mon, Jan 25

Cheapest month
January

from $256

Direct flights
Not recently

Usually 1+ stop

Quickest trip
1h 55m

190 km

Get a price alert

We'll email you when Phnom Penh → Sihanoukville drops to your price. It's free, and you can stop any time.

Today's cheapest fare is $256. We'll send one email to confirm. See our privacy policy.

Cheapest month to fly from Phnom Penh to Sihanoukville

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $258
  2. December 2026 $263
  3. January 2027 Cheapest $256
  4. February 2027 $256

Cheapest dates in January 2027

The lowest fares we've seen for each day, cheapest first.

AirAsia Cambodia
Depart07:20 Mon, Jan 25KTI → KOS 3h 50m · 1 stop
$256one way, per person
View deal
Cambodia Airways
Depart13:10 Sat, Jan 23KTI → KOS 2h 10m · 1 stop
$297one way, per person
View deal
See every date in January 2027 →

Plan the rest of your trip to Sihanoukville

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in SihanoukvilleCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in SihanoukvilleTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in SihanoukvillePre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in SihanoukvilleCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Phnom Penh to Sihanoukville

Phnom Penh (PNH) and Sihanoukville (KOS) are about 190 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 1h 55m. Over the next few months, one-way fares start from $256, and January 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Phnom Penh to Sihanoukville?

The cheapest one-way fare we've seen recently is $256 with AirAsia Cambodia, departing Monday, January 25, 2027. Over the coming months, the lowest fare in each month ranges from $256 to $263.

What is the cheapest month to fly from Phnom Penh to Sihanoukville?

January 2027 currently has the lowest fares, from $256 one way.

Are there direct flights from Phnom Penh to Sihanoukville?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Phnom Penh to Sihanoukville?

The quickest journey we've seen takes about 1h 55m. Phnom Penh and Sihanoukville are around 190 km apart.

Which airlines fly from Phnom Penh to Sihanoukville?

Recent fares on this route were with AirAsia Cambodia, Air Cambodia and Cambodia Airways.

More cheap flights from Phnom Penh

Compare flights to Sihanoukville from other cities →