The cheapest times to fly from KOS to KWE are

  • August 27th to March 25th (except the week of September 24th)

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 KOS to KWE is mid October. Prices can be as high as $1307 for Wednesday flights during early May, or as low as $661 for Thursday flights around mid October.


When to Fly to Guiyang

Flying from Kompongsom (KOS) to Guiyang (KWE) will usually cost between $694 to $1034 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 $685. Due to high demand the most expensive time to fly is early May, with an average price of $1307. Planning your trip to low-cost times can easily save you $622 on economy flights and even more on first-class flights. Generally, any price below $770 can be considered a good price for a round-trip KOS to KWE flight.

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

KOS to KWE Flight Prices

Compared to other flights, the KOS to KWE flight is cheaper than the average and costs less than the average flight leaving from Sihanoukville. The average price per mile (for a direct flight) is $0.43, which is a bit above average.


Flight Prices by Day of the Week

Thursday is usually the cheapest day to fly to KWE, and Friday the cheapest day to fly back into KOS. Wednesdays are the most expensive days to fly to Guiyang, and Mondays are the most expensive days to return to Sihanoukville. Selecting flights on the least expensive days could save you up to $93 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Thursday and returning a week later will cost an average of $821. Return trip prices are from the KWE to KOS 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 KOS to KWE can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 60 minutes may be realistic.


Flight Hacking KOS to KWE

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 KOS to KWE — but Champion Traveler does!

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

  • Price for both tickets: $372
  • Average savings: $398 (51.72%)

See KOS to PNH flights

Hack #2: Phnom Penh (KOS > PNH > KWE)

  • Price for both tickets: $630
  • Average savings: $140 (18.19%)

See KOS to KUL flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 14 major airlines flying this route most often: 9 Air, China Southern, Hainan, Juneyao Airlines, Lanmei Airlines (Cambodia), Lucky Air, Shandong, Shanghai Airlines, Shenzhen, Sichuan Airlines, Tianjin Airlines, Vietnam Airlines, Xiamen, Zhejiang Loong Airlines, and potentially more during busy seasons.

How far away is it from Longdongbao Airport to Kompongsom Airport?

The distance between the two airports is roughly 1120 miles or 1802 kilometers.

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

The real-world flight time for a nonstop KOS to KWE flight is about 2 hour 60 minutes.

How many flights go between Kompongsom and Guiyang?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from KOS to KWE.


Airport Location Info


Departing Airport

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

Return Airport

Destination code KWE
Destination airport name Longdongbao Airport
City Guiyang
Country China
Latitude 26.5
Longitude 106.8


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.