Cheap flights from Siem Reap, Cambodia to Krong Preah Sihanouk (SAI - KOS)
SAI — KOS
Mar 11 — Mar 181
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Siem Reap–Angkor Intl to Krong Preah Sihanouk Sihanoukville are usually found in February or August, booked 57 days in advance, depart on a Thursday or Friday and return on a Wednesday
Find flight deals from Siem Reap to Krong Preah Sihanouk
Discover tips and strategies to find the most affordable flight options for your journey from Siem Reap (SAI) to Krong Preah Sihanouk (KOS). 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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | September |
Cheapest in | February |
Average price | $151 |
- Most accurate provider: When it comes to deals on Siem Reap-Krong Preah Sihanouk flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Siem Reap-Krong Preah Sihanouk flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Siem Reap-Krong Preah Sihanouk flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Siem Reap-Krong Preah Sihanouk 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 Siem Reap-Krong Preah Sihanouk 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 Siem Reap to Krong Preah Sihanouk
Have a flexible travel schedule? Discover the best time to fly to Krong Preah Sihanouk from Siem Reap with our price prediction graph.
SAI-KOS
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 Siem Reap to Krong Preah Sihanouk
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How far ahead should I book a flight from Siem Reap to Krong Preah Sihanouk?
Use this chart to determine the optimal time to book a round-trip flight from Siem Reap to Krong Preah Sihanouk. Price data was last updated on February 6, 2026.
The best time to book flights from Siem Reap to Krong Preah Sihanouk is 57 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Siem Reap to Krong Preah Sihanouk?
Currently, October is the cheapest month in which you can book a flight from Siem Reap to Krong Preah Sihanouk (average of $96). Flying from Siem Reap to Krong Preah Sihanouk in April is currently the most expensive (average of $180). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SAI to KOS?
Find hourly flight availability from Siem Reap to Krong Preah Sihanouk. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 9, 2026.
When flying from Siem Reap to Krong Preah Sihanouk, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 45% versus a flight at noon.
How often are flights from Siem Reap to Krong Preah Sihanouk delayed?
About 9% of weekly flights between Siem Reap and Krong Preah Sihanouk have experienced delays in the past year, with the average delay time being 76 minutes.
What is the most punctual flight time for Siem Reap to Krong Preah Sihanouk flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Siem Reap to Krong Preah Sihanouk flights?
Over the last year, Cambodia Angkor Air have had the lowest number of delays on this route, with just 9% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Siem Reap to Krong Preah Sihanouk. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Krong Preah Sihanouk?
Book flights to Krong Preah Sihanouk if you plan to visit one of these locationsKampot
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Top airline flying from Siem Reap to Krong Preah Sihanouk
Discover the top airline that operate flights from Siem Reap to Krong Preah Sihanouk. 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$177 | FlexibilityNo cancel fee | On-timeN/A |