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Siem Reap

$325+ Cheap flights from California to Siem Reap, Cambodia (SAI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAI
Mar 3 — Mar 101
Tue 3/3
Tue 3/10
1 adult, Economy
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Cheap flight deals from California to Siem Reap

Cheapest flights from California to Siem Reap
Explore the most affordable flight options available from California to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 1, 2026.

This FlightHub deal was found by Cheapflights users on 1/30. 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.
Wed 4/2911:00 am
SFO
-
SAI
1 stop38h 10m
Singapore Airlines
Tue 5/1210:30 am
SAI
-
SFO
1 stop36h 40m
Singapore Airlines
Deal found 1/30$598
This Justfly.com deal was found by Cheapflights users on 1/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/111:00 am
SFO
-
SAI
1 stop38h 10m
Singapore Airlines
Thu 4/3010:30 am
SAI
-
SFO
1 stop36h 40m
Singapore Airlines
Deal found 1/30$643
This Justfly.com deal was found by Cheapflights users on 1/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:55 pm
LAX
-
SAI
1 stop28h 15m
Singapore Airlines
Fri 4/1710:30 am
SAI
-
LAX
1 stop24h 50m
Singapore Airlines
Deal found 1/30$672
This Gotogate deal was found by Cheapflights users on 1/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1012:30 pm
LAX
-
SAI
3 stops65h 40m
Multiple Airlines
Sat 4/185:10 pm
SAI
-
LAX
2 stops30h 55m
Multiple Airlines
Deal found 1/31$861
This FlightHub deal was found by Cheapflights users on 1/31. 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.
Fri 10/29:15 pm
LAX
-
SAI
1 stop27h 55m
Singapore Airlines
Tue 10/2710:45 am
SAI
-
LAX
1 stop24h 10m
Singapore Airlines
Deal found 1/31$885
This Gotogate deal was found by Cheapflights users on 1/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:50 pm
SFO
-
SAI
3 stops27h 35m
Vietnam Airlines
Tue 5/127:40 pm
SAI
-
SFO
1 stop36h 15m
Vietnam Airlines
Deal found 1/30$892
This Justfly.com deal was found by Cheapflights users on 1/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:40 am
SFO
-
SAI
1 stop39h 15m
Singapore Airlines
Mon 3/3010:30 am
SAI
-
SFO
1 stop36h 40m
Singapore Airlines
Deal found 1/30$898
This oojo deal was found by Cheapflights users on 1/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:35 am
LAX
-
SAI
2 stops42h 25m
Multiple Airlines
Fri 4/179:40 am
SAI
-
LAX
2 stops25h 30m
Multiple Airlines
Deal found 1/30$901
This KAYAK deal was found by Cheapflights users on 1/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:10 pm
ONT
-
SAI
2 stops29h 35m
Multiple Airlines
Fri 4/179:40 am
SAI
-
ONT
2 stops21h 25m
Multiple Airlines
Deal found 1/30$922
This Ovago deal was found by Cheapflights users on 1/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:50 am
SFO
-
SAI
2 stops27h 55m
Multiple Airlines
Thu 5/149:40 am
SAI
-
SFO
2 stops24h 50m
Multiple Airlines
Deal found 1/31$922
This Trip.com deal was found by Cheapflights users on 1/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1410:10 pm
SFO
-
SAI
1 stop29h 20m
Vietnam Airlines
Tue 3/249:30 pm
SAI
-
SFO
1 stop34h 30m
Vietnam Airlines
Deal found 1/30$926
This oojo deal was found by Cheapflights users on 2/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:50 pm
SFO
-
SAI
1 stop29h 50m
Vietnam Airlines
Thu 4/306:05 pm
SAI
-
SFO
2 stops61h 50m
Vietnam Airlines
Deal found 2/1$941

Find flight deals from California to Siem Reap

Keep the following information in mind while searching for California to Siem Reap flight deals. Data was last updated February 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$598
(FlightHub)

One-way from

$325
(FlightHub)

Popular in

July

Cheapest in

August

Average price

$883
Provider with most accurate pricing for Los Angeles-Siem Reap–Angkor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Siem Reap–Angkor Intl flights.
Search Deals
From California to Siem Reap–Angkor Intl
Search Deals
One-way flight from California to Siem Reap–Angkor Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Siem Reap 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 2,558,603 searches. Data last updated February 1, 2026.
Use the filters below to find and compare flights from California to Siem Reap that are best for you.

Fly from

California

Fly to

Siem Reap

Route

Depart

Return

Price

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/30

11:00 am-9:40 am

1 stop32h 40m

Siem Reap–Angkor Intl

Thu 5/14

10:30 am-9:10 am

1 stop36h 40m

$598

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/29

11:00 am-3:10 pm

1 stop38h 10m

Siem Reap–Angkor Intl

Tue 5/12

10:30 am-9:10 am

1 stop36h 40m

$598

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/1

11:00 am-3:10 pm

1 stop38h 10m

Siem Reap–Angkor Intl

Thu 4/30

10:30 am-9:10 am

1 stop36h 40m

$837

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Fri 4/10

12:30 pm-8:10 pm

3 stops65h 40m

Siem Reap–Angkor Intl

Sat 4/18

5:10 pm-10:05 am

2 stops30h 55m

$861

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/29

10:50 pm-4:25 pm

3 stops27h 35m

Siem Reap–Angkor Intl

Tue 5/12

7:40 pm-5:55 pm

1 stop36h 15m

$892

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Mon 7/20

2:20 pm-9:40 am

2 stops29h 20m

Siem Reap–Angkor Intl

Tue 7/28

10:30 am-10:10 pm

1 stop25h 40m

$895

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Tue 3/24

10:40 am-3:55 pm

1 stop39h 15m

Siem Reap–Angkor Intl

Mon 3/30

10:30 am-9:10 am

1 stop36h 40m

$898

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Fri 4/10

11:10 pm-6:45 pm

2 stops29h 35m

Siem Reap–Angkor Intl

Fri 4/17

9:40 am-5:05 pm

2 stops21h 25m

$922

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 4/1

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Thu 4/30

6:05 pm-5:55 pm

2 stops61h 50m

$941

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/30

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Thu 5/14

6:05 pm-5:55 pm

2 stops61h 50m

$941

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

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Best time to book a flight from California to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from California with our price prediction graph.
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 California to Siem Reap

What is the cheapest month to book a flight from California to Siem Reap?

Currently, January is the cheapest month in which you can book a flight from California to Siem Reap (average of $596). Flying from California to Siem Reap in July is currently the most expensive (average of $1,156). 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.

Related info for your journey

Find useful and relevant information for your journey from California to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Siem Reap from California?

    If you book a flight to Siem Reap from California, you will be flying to Siem Reap–Angkor Intl, which is the city’s only airport. Siem Reap–Angkor Intl (SAI) is located 24.7 mi from the center of Siem Reap.

  • How long is the flight from California to Siem Reap?

    Departing from California to Siem Reap will take you 27h 35m. California and Siem Reap are separated by a distance of 7791 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from California to Siem Reap one-way?

    To fly one-way, consider booking your trip with Vietnam Airlines, which is currently one of the cheapest options available, starting at $331. Singapore Airlines flights start at $332 while deals on United Airlines start at $512 one-way.

  • What are the most popular routes from California to Siem Reap?

    The most popular flight routes from California to Siem Reap are San Francisco - Siem Reap–Angkor Intl, Los Angeles - Siem Reap–Angkor Intl and San Jose - Siem Reap–Angkor Intl.

  • Can I find deals for flights from California to Siem Reap that include hotel bookings?

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

  • How can I find direct flights from California to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Siem Reap.

  • Can I find deals for business class flights from California to Siem Reap?

    Yes. Cheapflights offers flight deals from California 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.

  • What is the cheapest month to book a flight from California to Siem Reap?

    Currently, January is the cheapest month in which you can book a flight from California to Siem Reap (average of $596). Flying from California to Siem Reap in July is currently the most expensive (average of $1,156). 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.

See more FAQs

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Alternative routes for California to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
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Fort Lauderdale to Siem Reap flights

Top 2 airlines flying from California to Siem Reap

Discover the top 2 airlines that operate flights from California to Siem Reap. 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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$628Average$868FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$789Average$1,218FlexibilityNo cancel feeOn-time81%

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