Cheap flights from Siem Reap, Cambodia to Krong Preah Sihanouk
SAI — KOS
3 Dec — 10 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Siem Reap–Angkor Intl to Krong Preah Sihanouk Sihanoukville are usually found in February or December, booked 81 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap 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 3 November 2025.
Popular in
September
Cheapest in
February
Average price
£153
Highest demand for flights based on searches. 13% potential increase in price (£17 potential increase over avg. return price).
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.
Estimated return 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
Prices
Airlines
Delays
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 return flight from Siem Reap to Krong Preah Sihanouk. Price data was last updated on 31 October 2025.
The price you pay for your flight from Siem Reap to Krong Preah Sihanouk may vary depending on when you book. For the best chance of a lower fare, look to book 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Siem Reap to Krong Preah Sihanouk?
Currently, January is the cheapest month in which you can book a flight from Siem Reap to Krong Preah Sihanouk (average of £64). Flying from Siem Reap to Krong Preah Sihanouk in July is currently the most expensive (average of £127). 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 3 November 2025.
Unlike in the evening, when flights are generally more expensive, you can save up to 56% on flights from Siem Reap to Krong Preah Sihanouk by exploring options for tickets in the afternoon.
Weekly flight availability from Siem Reap to Krong Preah Sihanouk
Explore weekly flight availability from Siem Reap to Krong Preah Sihanouk. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 3 November 2025.
The most flights from SAI to KOS are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How often are flights from Siem Reap to Krong Preah Sihanouk delayed?
About 7% of weekly flights between Siem Reap and Krong Preah Sihanouk have experienced delays in the past year, with the average delay time being 74 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?
Monday 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 past year, Cambodia Angkor Air have had the lowest number of delays on this route, with just 7% 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.
How popular is this Siem Reap to Krong Preah Sihanouk flight route?
This flight path from Siem Reap–Angkor Intl to Krong Preah Sihanouk Sihanoukville was viewed by 10 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 Siem Reap to Krong Preah Sihanouk round-trip?
Currently priced at £108, Cambodia Angkor Air will fly you from Siem Reap to Krong Preah Sihanouk and back. In addition to Cambodia Angkor Air, many other airlines offer competitively priced options for your trip. Cambodia Angkor Air is currently priced 24% below the average price you’ll pay for this route.
Can I find deals for flights from Siem Reap to Krong Preah Sihanouk that include hotel bookings?
Yes. In addition to deals on Siem Reap to Krong Preah Sihanouk flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Siem Reap to Krong Preah Sihanouk?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Siem Reap to Krong Preah Sihanouk.
Can I find deals for business class flights from Siem Reap to Krong Preah Sihanouk?
Yes. Cheapflights offers flight deals from Siem Reap to Krong Preah Sihanouk by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Siem Reap to Krong Preah Sihanouk?
Currently, January is the cheapest month in which you can book a flight from Siem Reap to Krong Preah Sihanouk (average of £64). Flying from Siem Reap to Krong Preah Sihanouk in July is currently the most expensive (average of £127). 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.
Explore flights to Krong Preah Sihanouk departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 November 2025.
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 858,174 searches. Data last updated 3 November 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Siem Reap to Krong Preah Sihanouk?
Cheapflights helps you search for flights from Siem Reap to Krong Preah Sihanouk via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Siem Reap to Krong Preah Sihanouk?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Krong Preah Sihanouk from Siem Reap.
Can Cheapflights find flights from Siem Reap to Krong Preah Sihanouk with no change fees?
Certainly. Search results for flights to Krong Preah Sihanouk from Siem Reap shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Siem Reap to Krong Preah Sihanouk become cheaper?
Yes, Cheapflights offers price alerts on Siem Reap to Krong Preah Sihanouk flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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