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Siem Reap

$59+ Cheap flights from Krong Preah Sihanouk to Siem Reap, Cambodia (KOS - SAI)

KOS — SAI
Oct 17 — Oct 241
Sat 10/17
Sat 10/24
1 adult, Economy
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Cheap flight deals from Krong Preah Sihanouk to Siem Reap

Cheapest flights from Krong Preah Sihanouk to Siem Reap

Fri 9/2511:00 am -
Nonstop1h 00m
Sun 9/279:40 am -
Nonstop1h 05m
Deal found 9/17$148
Tue 9/2211:00 am -
Nonstop1h 00m
Sun 9/279:40 am -
Nonstop1h 05m
Deal found 9/14$153
Thu 9/241:35 pm -
Nonstop0h 55m
Sat 9/269:25 am -
Nonstop1h 10m
Deal found 9/14$170
Tue 9/2211:00 am -
Nonstop1h 00m
Mon 9/289:25 am -
Nonstop1h 10m
Deal found 9/14$186
Sat 9/2611:20 am -
Nonstop1h 05m
Fri 1/2912:30 pm -
Nonstop1h 05m
Deal found 9/16$189
Fri 9/2511:00 am -
Nonstop1h 00m
Mon 9/289:25 am -
Nonstop1h 10m
Deal found 9/16$194
Sat 9/2611:20 am -
Nonstop1h 05m
Mon 9/289:25 am -
Nonstop1h 10m
Deal found 9/17$203
Tue 9/2211:00 am -
Nonstop1h 00m
Tue 9/299:25 am -
Nonstop1h 05m
Deal found 9/15$217
Fri 9/2511:00 am -
Nonstop1h 00m
Tue 9/299:25 am -
Nonstop1h 05m
Deal found 9/15$233

Find flight deals from Krong Preah Sihanouk to Siem Reap

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$170
(Cambodia Angkor Air)

One-way from

$59
(Cambodia Angkor Air)

Popular in

March

Cheapest in

July

Average price

$123
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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From Krong Preah Sihanouk Sihanoukville to Siem Reap–Angkor Intl
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One-way flight from Krong Preah Sihanouk Sihanoukville to Siem Reap–Angkor Intl
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Highest demand for flights based on searches. 23% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Krong Preah Sihanouk to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Tue 9/22

11:00 am-12:00 pm

Nonstop1h 00m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$59

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Mon 9/28

11:20 am-12:25 pm

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$59

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Fri 9/25

11:00 am-12:00 pm

Nonstop1h 00m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$76

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Sat 9/26

11:20 am-12:25 pm

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$77

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Tue 9/29

11:00 am-12:00 pm

Nonstop1h 00m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$77

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Sun 9/27

11:15 am-12:20 pm

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$77
Quickest round-trip

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Wed 10/21

1:35 pm-2:30 pm

Nonstop0h 55m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$77

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Thu 9/24

1:35 pm-2:30 pm

Nonstop0h 55m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$77

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Tue 10/20

11:00 am-12:00 pm

Nonstop1h 00m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$77

Krong Preah SihanoukSiem Reap

KOS Krong Preah Sihanouk Sihanoukville - SAI Siem Reap–Angkor Intl

KOSSAI

Krong Preah Sihanouk Sihanoukville

Sun 9/27

11:15 am-12:20 pm

Nonstop1h 05m

Siem Reap–Angkor Intl

Thu 10/1

11:55 am-1:05 pm

Nonstop1h 10m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 19 resultsSorted by cheapest first
1
2
  • 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

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?

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.

How much does it cost to fly round-trip from Krong Preah Sihanouk to Siem Reap?

Airfare is above average for this route at the moment.

Krong Preah Sihanouk to Siem Reap flights typically cost between $108 and $132 in September.
The cheapest round-trip price found within the last 5 days was $170 on Cambodia Angkor Air (Sep 27-Oct 2).

Related info for your journey

  • 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.

  • How long is the flight from Krong Preah Sihanouk to Siem Reap?

    Departing from Krong Preah Sihanouk to Siem Reap will take you 1h 05m. The distance from Krong Preah Sihanouk to Siem Reap is about 197 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Krong Preah Sihanouk to Siem Reap round-trip?

    Cambodia Airways, at $85, was found to be the cheapest airline from Krong Preah Sihanouk to Siem Reap. An alternate airline flying to your destination would be Cambodia Angkor Air. Cambodia Airways is priced at 58% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Krong Preah Sihanouk to Siem Reap?

    No one likes to see their flight delayed. When booking a flight from Krong Preah Sihanouk to Siem Reap consider choosing Vietnam Airlines (89%), Cambodia Angkor Air (87%) or Cambodia Airways (80%) as they are the most reliable in getting you off to your destination on time.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Krong Preah Sihanouk to Siem Reap

AirlineCheapestAverageFlexibilityOn-time
Cambodia AirwaysCheapest$85Average$105FlexibilityNo cancel feeOn-timeN/A
Cambodia Angkor AirCheapest$103Average$205FlexibilityNo cancel feeOn-timeN/A

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