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Siem Reap

Cheap flights from Krong Preah Sihanouk to Siem Reap, Cambodia (KOS - SAI)

KOS — SAI
Mar 12 — Mar 191
Thu 3/12
Thu 3/19
1 adult, Economy
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Find flight deals from Krong Preah Sihanouk to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Krong Preah Sihanouk (KOS) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

March

Cheapest in

September

Average price

$205
Provider with most accurate pricing for Krong Preah Sihanouk Sihanoukville-Siem Reap–Angkor Intl flight deals.
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Provider most trusted by Cheapflights users for Krong Preah Sihanouk Sihanoukville-Siem Reap–Angkor Intl flights.
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Highest demand for flights based on searches. 16% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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  • Most accurate provider: When it comes to deals on Krong Preah Sihanouk-Siem Reap flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Krong Preah Sihanouk-Siem Reap flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Krong Preah Sihanouk-Siem Reap flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Krong Preah Sihanouk-Siem Reap flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Krong Preah Sihanouk-Siem Reap flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Krong Preah Sihanouk to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Krong Preah Sihanouk with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Krong Preah Sihanouk to Siem Reap

What is the cheapest time of day to fly from KOS to SAI?

Find hourly flight availability from Krong Preah Sihanouk to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 10, 2026.

When flying from Krong Preah Sihanouk to Siem Reap, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Krong Preah Sihanouk to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Krong Preah Sihanouk to Siem Reap flight route?

    This flight path from Krong Preah Sihanouk Sihanoukville to Siem Reap–Angkor Intl was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What is the cheapest airline to fly from Krong Preah Sihanouk to Siem Reap round-trip?

    Cambodia Angkor Air, at $104, was found to be the cheapest airline from Krong Preah Sihanouk to Siem Reap.. Cambodia Angkor Air is priced at 48% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Krong Preah Sihanouk to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Krong Preah Sihanouk to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Krong Preah Sihanouk to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Krong Preah Sihanouk to Siem Reap.

  • Can I find deals for business class flights from Krong Preah Sihanouk to Siem Reap?

    Yes. Cheapflights offers flight deals from Krong Preah Sihanouk to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Krong Preah Sihanouk to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
Phnom Penh to Siem Reap flights

Top airline flying from Krong Preah Sihanouk to Siem Reap

Discover the top airline that operate flights from Krong Preah Sihanouk to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cambodia Angkor AirCheapest$104Average$192FlexibilityNo cancel feeOn-timeN/A

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