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$1,115+ Cheap flights from Siem Reap, Cambodia (SAI) to San Francisco (SFO)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — SFO
Jun 1 — Jun 81
Mon 6/1
Mon 6/8
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Siem Reap to San Francisco

Cheapest flights from Siem Reap to San Francisco
Explore the most affordable flight options available from Siem Reap to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 2, 2026.

This FlightHub deal was found by Cheapflights users on 5/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:35 pm
SAI
-
SFO
2 stops25h 10m
Multiple Airlines
Sat 6/2712:50 am
SFO
-
SAI
2 stops28h 05m
Multiple Airlines
Deal found 5/1$1,115
This SmartFares deal was found by Cheapflights users on 4/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:10 pm
SAI
-
SFO
2 stops25h 35m
Multiple Airlines
Fri 7/31:00 am
SFO
-
SAI
2 stops26h 10m
Multiple Airlines
Deal found 4/29$1,183
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Tue 6/309:35 am
SAI
-
SFO
2 stops20h 35m
Multiple Airlines
Wed 7/81:00 am
SFO
-
SAI
2 stops27h 55m
Multiple Airlines
Deal found 4/29$1,227
This FlightHub deal was found by Cheapflights users on 4/29. 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 6/2612:55 pm
SAI
-
SFO
2 stops21h 15m
Multiple Airlines
Fri 7/31:25 am
SFO
-
SAI
2 stops27h 30m
Multiple Airlines
Deal found 4/29$1,239
This FlightHub deal was found by Cheapflights users on 5/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:35 pm
SAI
-
SFO
2 stops25h 10m
Multiple Airlines
Fri 6/191:15 am
SFO
-
SAI
2 stops27h 05m
Multiple Airlines
Deal found 5/1$1,263
This Vietnam Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/247:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Sun 7/510:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 4/29$1,266
This FlightHub deal was found by Cheapflights users on 4/29. 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 6/101:05 pm
SAI
-
SFO
2 stops21h 05m
Multiple Airlines
Thu 6/181:15 am
SFO
-
SAI
2 stops27h 05m
Multiple Airlines
Deal found 4/29$1,271
This FlightHub deal was found by Cheapflights users on 4/29. 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 6/101:05 pm
SAI
-
SFO
2 stops21h 05m
Multiple Airlines
Sat 6/2012:50 am
SFO
-
SAI
2 stops27h 05m
Multiple Airlines
Deal found 4/29$1,287
This Vietnam Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 7/107:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Sun 7/1910:50 pm
SFO
-
SAI
1 stop33h 05m
Vietnam Airlines
Deal found 4/29$1,288
This KAYAK deal was found by Cheapflights users on 4/29. 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.
Tue 6/307:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Thu 7/910:50 pm
SFO
-
SAI
1 stop33h 05m
Vietnam Airlines
Deal found 4/29$1,293

Find flight deals from Siem Reap to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Siem Reap (SAI) to San Francisco (SFO). 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 May 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,115
(FlightHub)
Provider with most accurate pricing for Siem Reap–Angkor Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Siem Reap–Angkor Intl-San Francisco flights.
Search Deals
From Siem Reap–Angkor Intl to San Francisco
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Siem Reap to San Francisco 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 May 2, 2026.
Use the filters below to find and compare flights from Siem Reap to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 6/19

12:55 pm-6:45 am

2 stops31h 50m

San Francisco

Sat 6/27

12:50 am-6:55 pm

2 stops28h 05m

$1,115
Quickest round-trip

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Thu 6/11

7:35 pm-6:45 am

2 stops25h 10m

San Francisco

Fri 6/19

1:15 am-6:20 pm

2 stops27h 05m

$1,271

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 6/30

7:10 pm-5:55 pm

1 stop36h 45m

San Francisco

Thu 7/9

10:50 pm-6:20 pm

1 stop29h 30m

$1,317

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Sat 8/1

7:10 pm-5:55 pm

1 stop36h 45m

San Francisco

Sun 8/9

10:50 pm-6:20 pm

1 stop29h 30m

$1,329

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 7/7

7:10 pm-5:55 pm

1 stop36h 45m

San Francisco

Thu 7/16

10:50 pm-6:20 pm

1 stop29h 30m

$1,459

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Sun 7/5

12:55 pm-1:35 pm

2 stops38h 40m

San Francisco

Mon 7/13

3:55 pm-9:00 am

2 stops27h 05m

$1,521

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 6/19

12:55 pm-1:35 pm

2 stops38h 40m

San Francisco

Sun 6/28

8:30 am-9:00 am

3 stops34h 30m

$1,703

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 7/20

12:55 pm-2:00 pm

2 stops63h 05m

San Francisco

Wed 7/29

5:05 pm-12:15 pm

2 stops29h 10m

$1,810

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Thu 6/11

11:50 pm-2:00 pm

2 stops52h 10m

San Francisco

Sat 6/20

4:12 pm-9:30 pm

3 stops63h 18m

$1,986
Cheapest one-way

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Thu 9/3

7:35 pm-1:35 pm

2 stops56h 00m

$2,608

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Siem Reap to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Siem Reap to San Francisco in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Siem Reap-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Siem Reap-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Siem Reap-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Siem Reap-San Francisco 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 Siem Reap-San Francisco 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 Siem Reap to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Siem Reap 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.

Related info for your journey

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

  • How long is the flight from Siem Reap to San Francisco?

    There are many flights that can get you from Siem Reap to San Francisco in 36h 45m. Fly via Vietnam Airlines to get the fastest option. The distance from Siem Reap to San Francisco is about 7791 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Siem Reap to San Francisco 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Emeryville
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Siem Reap to San Francisco

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