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Cheap Flights from Phnom Penh to Sihanoukville

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Compare Phnom Penh to Sihanoukville flight deals

Find the cheapest month or even day of the year to fly to Sihanoukville

Book the best Sihanoukville fare with no extra fees

Flight deals from Phnom Penh to Sihanoukville

Looking for a cheap last-minute deal or the best return flight from Phnom Penh to Sihanoukville? Find the lowest prices on one-way and return tickets right here.
Sihanoukville.R 2,426 per passenger.Departing Tue, 27 Jan.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Phnom Penh on Tue, 27 Jan, arriving in Sihanoukville.Price includes taxes and charges.From R 2,426, select.
Sihanoukville.R 2,869 per passenger.Departing Mon, 23 Jun.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Mon, 23 Jun, arriving in Sihanoukville.Price includes taxes and charges.From R 2,869, select.
Sihanoukville.R 3,050 per passenger.Departing Wed, 2 Jul.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Wed, 2 Jul, arriving in Sihanoukville.Price includes taxes and charges.From R 3,050, select.
Sihanoukville.R 3,282 per passenger.Departing Wed, 17 Dec.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Wed, 17 Dec, arriving in Sihanoukville.Price includes taxes and charges.From R 3,282, select.
Sihanoukville.R 3,361 per passenger.Departing Mon, 4 Aug.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Mon, 4 Aug, arriving in Sihanoukville.Price includes taxes and charges.From R 3,361, select.
Sihanoukville.R 3,361 per passenger.Departing Fri, 31 Oct.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Fri, 31 Oct, arriving in Sihanoukville.Price includes taxes and charges.From R 3,361, select.
Sihanoukville.R 3,383 per passenger.Departing Mon, 15 Sep.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Mon, 15 Sep, arriving in Sihanoukville.Price includes taxes and charges.From R 3,383, select.
Sihanoukville.R 3,792 per passenger.Departing Fri, 28 Nov.One-way flight with AirAsia Cambodia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Fri, 28 Nov, arriving in Sihanoukville.Price includes taxes and charges.From R 3,792, select.

Find the cheapest month to fly from Phnom Penh to Sihanoukville

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phnom Penh to Sihanoukville flights are currently cheapest in January.
Jun
from R 2,874
Jul
from R 3,055
Aug
from R 3,366
Sep
from R 3,389
Oct
from R 3,367
Nov
from R 3,798
Dec
from R 3,287
Jan
from R 2,430
Feb
from R 4,089
Mar
from R 4,970
Apr
Find prices
May
Find prices

Phnom Penh to Sihanoukville: Alternative routes

Compare routes from Phnom Penh to Sihanoukville below. You may find an airport to fly into that's cheaper, faster, or easier than Sihanoukville.

Phnom Penh to Sihanoukville: Flight information

The things to know before you go.
Cheapest flight foundR 2,426
Cheapest month to flyJanuary

Finding cheap flights from Phnom Penh to Sihanoukville: Frequently asked questions

The best price we found for a return flight from Phnom Penh to Sihanoukville is R 5,427. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Phnom Penh to Sihanoukville. But we found flights with one or more stops from R 5,427.
As of June 2025, there are no flights flying from Phnom Penh to Sihanoukville.
The cheapest month to fly from Phnom Penh to Sihanoukville is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phnom Penh Airport to Sihanoukville Airport on Saturday, 21 June 2025.
No airlines currently offer direct flights between Phnom Penh Airport and Sihanoukville Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sihanoukville but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sihanoukville is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air Cambodia offers the cheapest flight tickets to Sihanoukville.

Flying from Phnom Penh International Airport (PNH) to Sihanouk International Airport (KOS): what you need to know

  • Sihanoukville's timezone is UTC+7, which is the same as Phnom Penh.

  • Your PNH to KOS flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • You can expect bigger queues during popular months like August. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.

  • Explore another city along the way or simply break up your flight with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from Phnom Penh International Airport to Sihanouk International Airport. Many travellers pass through Siem Reap-Ankor International Airport when flying between PNH and KOS.

How to find the cheapest flights from Phnom Penh International Airport (PNH) to Sihanouk International Airport (KOS)

  • R 2,426 is currently the best price for a one-way Phnom Penh International Airport to Sihanouk International Airport flight. Return flights start at R 5,427. These prices can change depending on demand and availability.

  • To find cheap tickets from PNH to KOS, book ahead. Airlines tend to offer their most competitively priced fares when flights are first made available.

  • The 'Whole month' search tool shows you the cheapest flights from Phnom Penh International Airport to Sihanouk International Airport across the entire month. It's an easy way to find a bargain if your travel dates are flexible.

  • Snapping up cheap flights from PNH to KOS is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know when fares go down.

  • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Phnom Penh International Airport to Sihanouk International Airport.

Handy information about Phnom Penh International Airport (PNH)

  • When it comes to Phnom Penh International Airport's on-time performance, data shows 74.4% of flights stick to their scheduled arrival time.

  • Central Phnom Penh to Phnom Penh International Airport is around 11 kilometres. Depending on traffic, it'll take about 30 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Searching for a convenient hotel close to PNH? If you're catching an early flight from Phnom Penh International Airport to Sihanouk International Airport, these accommodation options will have you moments from check-in:

Arriving at Sihanouk International Airport (KOS)

  • Hop off your Phnom Penh International Airport to Sihanouk International Airport flight and be snoozing in your hotel bed shortly after. If you want a comfortable option within easy reach of KOS, check out Sok Sabay Resort.

Getting from Sihanouk International Airport (KOS) to central Sihanoukville

  • From Sihanouk International Airport, Sihanoukville is approximately 24 kilometres away. It takes around 45 minutes to reach the centre driving.

When to fly to Sihanouk International Airport (KOS)

  • January is the busiest month for flights from Phnom Penh International Airport to Sihanouk International Airport. For smaller crowds, travel to Sihanoukville in April.

  • The warmest month in Sihanoukville is May, with temperatures ranging between 25ºC (77ºF) and 31ºC (88ºF). Lock in your flights from Phnom Penh International Airport to Sihanouk International Airport in this month if this is the type of weather you enjoy.

  • Search for cheap tickets from PNH to KOS in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 23ºC (73ºF) and 29ºC (84ºF) on average.

Explore more of Cambodia

  • Sihanoukville is easy to fall in love with, but there are so many other parts of Cambodia just waiting to be explored. About 193 kilometres north-east of Sihanoukville, a trip to Phnom Penh will keep you on the go. Don't miss top attractions like Royal Palace, Tuol Sleng Genocide Museum and Wat Phnom.

  • Battambang is another essential stop in Cambodia and is around 274 kilometres north of Sihanoukville. No journey is complete without a visit to The Garden of SamDech Sar Kheng, Spean Thmor Chas and សួននាគសន្តិភាព-Dragon Peace Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.