$2,455+ Cheap flights from San Francisco (SFO) to Krong Preah Sihanouk (KOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KOS
Nov 30 — Dec 71
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Francisco to Krong Preah Sihanouk with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Krong Preah Sihanouk
Cheapest
Best
Last-minute
Cheapest flights from San Francisco to Krong Preah SihanoukExplore the most affordable flight options available from San Francisco to Krong Preah Sihanouk. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.
Explore the most affordable flight options available from San Francisco to Krong Preah Sihanouk. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.
This Booking.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 pm -
2 stops43h 05m
Sat 11/281:50 pm -
2 stops55h 50m
Deal found 10/27![Multiple Airlines logo]()
$2,676
Best flights from San Francisco to Krong Preah SihanoukDiscover carefully curated flight deals from San Francisco to Krong Preah Sihanouk that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
Discover carefully curated flight deals from San Francisco to Krong Preah Sihanouk that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
This Vietnam Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/119:10 pm -
1 stop21h 25m
Thu 5/610:45 am -
1 stop21h 10m
Deal found 10/26![Vietnam Airlines logo]()
$2,455
This FlightHub deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1311:40 pm -
2 stops44h 00m
Sat 5/89:50 am -
2 stops48h 05m
Deal found 10/26![Multiple Airlines logo]()
$2,560
This Vietnam Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1410:10 pm -
1 stop21h 25m
Thu 5/610:45 am -
1 stop21h 10m
Deal found 10/26![Vietnam Airlines logo]()
$2,495
This Vietnam Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/119:10 pm -
1 stop21h 25m
Sat 5/810:45 am -
1 stop21h 10m
Deal found 10/26![Vietnam Airlines logo]()
$2,495
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1410:10 pm -
1 stop22h 30m
Thu 5/69:50 am -
2 stops24h 05m
Deal found 10/26![Multiple Airlines logo]()
$2,826
This Vietnam Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/119:10 pm -
1 stop21h 25m
Sun 5/910:45 am -
1 stop21h 10m
Deal found 10/26![Vietnam Airlines logo]()
$2,528
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:40 pm -
2 stops47h 20m
Sat 11/281:50 pm -
1 stop18h 10m
Deal found 10/27![Multiple Airlines logo]()
$2,977
Last-minute flights from San Francisco to Krong Preah SihanoukDiscover last-minute flight deals from San Francisco to Krong Preah Sihanouk. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Krong Preah Sihanouk. Data last updated October 31, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 pm -
2 stops43h 05m
Sat 11/281:50 pm -
2 stops55h 50m
Deal found 10/27![Multiple Airlines logo]()
$2,676
Find flight deals from San Francisco to Krong Preah Sihanouk
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 October 31, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $1,308 (FlightHub) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Krong Preah Sihanouk that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 31, 2026.
Use the filters below to find and compare flights from San Francisco to Krong Preah Sihanouk that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Thu 3/11
9:10 pm-9:35 am
1 stop21h 25m
Krong Preah Sihanouk Sihanoukville
Thu 5/6
10:45 am-5:55 pm
1 stop21h 10m
$2,455
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Sun 3/14
10:10 pm-9:35 am
1 stop21h 25m
Krong Preah Sihanouk Sihanoukville
Thu 5/6
10:45 am-5:55 pm
1 stop21h 10m
$2,495
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Thu 3/11
9:10 pm-9:35 am
1 stop21h 25m
Krong Preah Sihanouk Sihanoukville
Sat 5/8
10:45 am-5:55 pm
1 stop21h 10m
$2,495
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Thu 3/11
9:10 pm-9:35 am
1 stop21h 25m
Krong Preah Sihanouk Sihanoukville
Sun 5/9
10:45 am-5:55 pm
1 stop21h 10m
$2,528
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Sat 3/13
11:40 pm-10:40 am
2 stops44h 00m
Krong Preah Sihanouk Sihanoukville
Sat 5/8
9:50 am-7:55 pm
2 stops48h 05m
$2,560
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Sun 3/14
10:10 pm-10:40 am
1 stop22h 30m
Krong Preah Sihanouk Sihanoukville
Thu 5/6
9:50 am-7:55 pm
2 stops24h 05m
$2,826
San FranciscoKrong Preah Sihanouk
SFO San Francisco - KOS Krong Preah Sihanouk Sihanoukville
SFOKOS
San Francisco
Fri 11/20
10:40 pm-1:00 pm
2 stops47h 20m
Krong Preah Sihanouk Sihanoukville
Sat 11/28
1:50 pm-5:00 pm
1 stop18h 10m
$2,977
Sorted by cheapest first
- Most accurate provider: When it comes to deals on San Francisco-Krong Preah Sihanouk flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Francisco-Krong Preah Sihanouk flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Francisco-Krong Preah Sihanouk flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Krong Preah Sihanouk flights, Cheapflights users trust Expedia the most. Expedia 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 San Francisco-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 San Francisco to Krong Preah Sihanouk
Have a flexible travel schedule? Discover the best time to fly to Krong Preah Sihanouk from San Francisco with our price prediction graph.
SFO-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.
Related info for your journey
Find useful and relevant information for your journey from San Francisco 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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Krong Preah Sihanouk flight routes
Other flight options
Other flights from San Francisco
Popular flights