The cheapest times to fly from PNH to KOS are

  • January 1st to January 14th
  • February 5th to March 18th
  • July 16th to October 28th
  • November 19th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from PNH to KOS is mid October. Prices can be as high as $411 for Wednesday flights during early May, or as low as $224 for Tuesday flights around mid October.


When to Fly to Sihanoukville

Flying from Phnom Penh (PNH) to Kompongsom (KOS) will usually cost between $282 to $388 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid October with an average ticket price of $259. Due to high demand the most expensive time to fly is early May, with an average price of $387. Planning your trip to low-cost times can easily save you $128 on economy flights and even more on first-class flights. Generally, any price below $348 can be considered a good price for a round-trip PNH to KOS flight.

See below for a graph of average weekly prices for the PNH to KOS route. All prices are for round-trip tickets in USD.

PNH to KOS Flight Prices

Compared to other flights, the PNH to KOS flight is much cheaper than the average and costs much less than the average flight leaving from Phnom Penh. The average price per mile (for a direct flight) is $2.12, which is above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Wednesdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $38 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $331. Return trip prices are from the KOS to PNH flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from PNH to KOS can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 10 minutes may be realistic.


Flight Hacking PNH to KOS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from PNH to KOS — but Champion Traveler does!

Hack #1: Kuala Lumpur (PNH > KUL > KOS)

  • Price for both tickets: $203
  • Average savings: $145 (41.67%)

See PNH to KUL flights


Flight Questions Answered

Still have questions about flying from PNH to KOS? We’ve got answers.

Which airlines fly this route?

You can find 18 major airlines flying this route most often: AirAsia, Bangkok Airways, Cambodia Airways, Cambodia Angkor Air, Cathay Dragon, Cathay Pacific, China Airlines, China Southern, EVA Air, FlexFlight, Hainan, JC (Cambodia) International, Lanmei Airlines (Cambodia), Shenzhen, Singapore Airlines, Thai AirAsia, Vietnam Airlines, Xiamen, and potentially more during busy seasons.

How far away is it from Kompongsom Airport to Phnom Penh International Airport?

The distance between the two airports is roughly 102 miles or 164 kilometers.

How long does it take to fly from PNH to KOS?

The real-world flight time for a nonstop PNH to KOS flight is about 1 hour 10 minutes.

How many flights go between Phnom Penh and Kompongsom?

It depends on the day of the week and the date, but a typical day might have around 52 available flights from PNH to KOS.


Airport Location Info


Departing Airport

Origination code PNH
Origination airport name Phnom Penh International Airport
City Phnom Penh
Country Cambodia
Latitude 11.5
Longitude 104.8

Return Airport

Destination code KOS
Destination airport name Kompongsom Airport
City Kompongsom
Country Cambodia
Latitude 10.6
Longitude 103.7


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.