Question 1

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

Accepted Answer

Flying on Cambodia Angkor Air is currently your cheapest option to Krong Preah Sihanouk, with prices starting at $91. You may be able to fly from Siem Reap to Krong Preah Sihanouk for 50% less than the average price by searching for this airline.

Question 2

How far ahead should I book a flight from Siem Reap to Krong Preah Sihanouk?

Accepted Answer

The best time to book flights from Siem Reap to Krong Preah Sihanouk is 90 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.

Question 3

What is the cheapest day to fly from Siem Reap to Krong Preah Sihanouk?

Accepted Answer

Travelers seeking maximum savings on their Siem Reap to Krong Preah Sihanouk flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 4

Weekly flight availability from Siem Reap to Krong Preah Sihanouk

Accepted Answer

The most flights from SAI to KOS are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Question 5

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

Accepted Answer

Departing on a Friday is a good option for securing a great price. You can expect to save up to 57% when planning your travel around this day of the week.

Question 6

How far in advance should I book a flight from Siem Reap to Krong Preah Sihanouk?

Accepted Answer

To save up to 107% on this flight, we recommend booking at least 17 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Siem Reap to Krong Preah Sihanouk from $92 1-2 weeks out and tickets from $189 for flights departing within the next 72 hours.

Question 7

What is the cheapest month to fly from Siem Reap to Krong Preah Sihanouk?

Accepted Answer

September is one of the best times of the year to fly to Krong Preah Sihanouk from Siem Reap. Prices for September average $182 per person but you can even find prices for as low as $86. The most expensive prices can be found in the month of November. Opting for a September flight can save you 38% on your journey compared to booking in November

Question 8

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

Accepted Answer

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 morning, which can drop the price by up to 55% versus a flight in the evening.

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

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.

Question 11

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

Accepted Answer

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.

Popular in	November
Cheapest in	September
Average price	$153

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

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Cheapflights Tip: The best prices from Siem Reap–Angkor Intl to Krong Preah Sihanouk Sihanoukville are usually found in September or August, booked 90 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

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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.

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

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 August 8, 2025.

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 August 14, 2025.

Weekly flight availability from Siem Reap to Krong Preah Sihanouk

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.

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

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

How can I 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?

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