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$632+ Cheap flights from Siem Reap, Cambodia (SAI) to San Francisco (SFO)

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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — SFO
Jul 19 — Jul 261
Sun 7/19
Sun 7/26
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 June 19, 2026.

This Vietnam Airlines deal was found by Cheapflights users on 6/15. 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
Wed 7/1510:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 6/15$1,020
This Vietnam Airlines deal was found by Cheapflights users on 6/15. 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 6/267:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Sun 7/1910:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 6/15$1,038
This Justfly.com deal was found by Cheapflights users on 6/19. 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 12/187:25 pm
SAI
-
SFO
2 stops26h 15m
Multiple Airlines
Mon 12/2811:50 pm
SFO
-
SAI
2 stops27h 55m
Multiple Airlines
Deal found 6/19$1,113
This Vietnam Airlines deal was found by Cheapflights users on 6/15. 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.
Sat 6/277:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Sat 7/1810:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 6/15$1,141
This Vietnam Airlines deal was found by Cheapflights users on 6/15. 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
Thu 7/1610:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 6/15$1,155
This Expedia deal was found by Cheapflights users on 6/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:35 pm
SAI
-
SFO
2 stops25h 10m
Multiple Airlines
Wed 7/151:25 am
SFO
-
SAI
2 stops27h 30m
Multiple Airlines
Deal found 6/16$1,164
This Vietnam Airlines deal was found by Cheapflights users on 6/15. 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 6/267:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Thu 7/1610:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 6/15$1,172
This Vietnam Airlines deal was found by Cheapflights users on 6/15. 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.
Sat 6/277:10 pm
SAI
-
SFO
1 stop36h 45m
Vietnam Airlines
Thu 7/1610:50 pm
SFO
-
SAI
1 stop29h 30m
Vietnam Airlines
Deal found 6/15$1,275

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 June 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,787
(Kiwi.com)

One-way from

$632
(Bravofly)
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
One-way flight 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 June 19, 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
Quickest round-trip

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

12:55 pm-7:55 pm

2 stops21h 00m

San Francisco

Sat 7/18

10:50 pm-8:45 am

1 stop19h 55m

$1,787

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

12:55 pm-1:55 pm

2 stops39h 00m

San Francisco

Mon 7/13

3:55 pm-12:15 pm

2 stops30h 20m

$2,161

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

12:55 pm-1:55 pm

2 stops39h 00m

San Francisco

Sat 7/18

3:55 pm-6:55 pm

2 stops37h 00m

$2,161

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

7:35 pm-1:35 pm

2 stops32h 00m

San Francisco

Tue 7/14

3:55 pm-6:55 pm

2 stops37h 00m

$2,306

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

10:30 am-9:50 am

1 stop37h 20m

San Francisco

Wed 7/15

11:45 am-9:40 am

1 stop31h 55m

$2,728

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

10:30 am-9:50 am

1 stop37h 20m

San Francisco

Fri 7/17

11:45 am-9:40 am

1 stop31h 55m

$2,986

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Mon 6/29

10:30 am-9:50 am

1 stop37h 20m

San Francisco

Thu 7/16

11:45 am-9:40 am

1 stop31h 55m

$3,269
Cheapest one-way

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Sat 11/21

9:30 pm-6:40 am

2 stops24h 10m

$632

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Wed 8/12

10:35 pm-5:55 pm

1 stop33h 20m

$681

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 8/11

4:55 pm-9:10 pm

2 stops42h 15m

$687

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 14 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 June.
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 39h. Fly via Qatar Airways 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
Roseville
Cupertino
Emeryville
Newark
Watsonville
San Bruno
San Ramon
Vacaville
San Carlos
Redwood City
Daly City
Turlock
Sunnyvale
Vallejo
San Lorenzo

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.
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