Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Siem Reap to San Francisco from $549

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Siem Reap to San Francisco departing on 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Siem Reap to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
10:30 am - 9:50 am
SAI
-
SFO
37h 20m
1 stop
Singapore Airlines Logo
11:45 am - 9:40 am
SFO
-
SAI
31h 55m
1 stop
$818Singapore Airlines
Tue, Jun 9 - Tue, Sep 1
Multiple Airlines Logo
12:55 pm - 6:45 am
SAI
-
SFO
31h 50m
2 stops
Multiple Airlines Logo
1:25 am - 6:45 pm
SFO
-
SAI
27h 20m
2 stops
$945Multiple Airlines
Tue, Jun 9 - Mon, Aug 31
Multiple Airlines Logo
10:30 am - 9:50 am
SAI
-
SFO
37h 20m
1 stop
Multiple Airlines Logo
1:20 am - 6:45 pm
SFO
-
SAI
27h 25m
2 stops
$957Multiple Airlines
Tue, Jun 9 - Mon, Aug 31
Multiple Airlines Logo
7:05 pm - 6:00 pm
SAI
-
SFO
36h 55m
3 stops
Multiple Airlines Logo
2:00 pm - 9:00 am
SFO
-
SAI
29h 00m
2 stops
$1,182Multiple Airlines
Tue, Jun 9 - Tue, Sep 1
Emirates Logo
11:50 pm - 2:53 pm
SAI
-
SFO
53h 03m
3 stops
Emirates Logo
11:45 pm - 9:30 pm
SFO
-
SAI
31h 45m
3 stops
$5,850Emirates
Tue, Jun 9 - Tue, Sep 1

momondo 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, momondo users made 832,500 searches. Data last updated February 8, 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

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 6/9

10:30 am-9:50 am

1 stop37h 20m

San Francisco

Tue 9/1

11:45 am-9:40 am

1 stop31h 55m

$818

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 6/9

12:55 pm-6:45 am

2 stops31h 50m

San Francisco

Mon 8/31

1:25 am-6:45 pm

2 stops27h 20m

$945

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 6/9

10:30 am-9:50 am

1 stop37h 20m

San Francisco

Mon 8/31

1:20 am-6:45 pm

2 stops27h 25m

$957

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 6/9

7:05 pm-6:00 pm

3 stops36h 55m

San Francisco

Tue 9/1

2:00 pm-9:00 am

2 stops29h 00m

$1,182

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 6/9

11:50 pm-2:53 pm

3 stops53h 03m

San Francisco

Tue 9/1

11:45 pm-9:30 pm

3 stops31h 45m

$5,850

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 2/17

6:50 pm-5:00 pm

1 stop37h 10m

$549

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 2/17

7:05 pm-2:00 pm

2 stops33h 55m

$605

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Tue 2/17

11:20 pm-4:20 pm

3 stops32h 00m

$733

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Siem Reap to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Siem Reap to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Siem Reap to San Francisco (SAI to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Siem Reap to San Francisco

Fastest flight time

37h 20m

Direct flights

None
The fastest flight from Siem Reap to San Francisco takes 37h 20m
There are no direct flights from Siem Reap to San Francisco. There are no popular flight routes from Siem Reap to San Francisco.
Search flight deals

  • How far is Siem Reap–Angkor Intl to San Francisco by plane?

    The distance between Siem Reap–Angkor Intl and San Francisco is about 7798.8 mi. Flights usually cover this in 37h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Siem Reap–Angkor Intl Airport to San Francisco Airport?

    Prices for flights from Siem Reap–Angkor Intl Airport to San Francisco Airport refresh daily.

  • How old do you have to be to fly from Siem Reap–Angkor Intl Airport to San Francisco Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Siem Reap–Angkor Intl Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Siem Reap to San Francisco?

    Price Alerts will notify you by email when the price for flights to San Francisco from Siem Reap decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Siem Reap to San Francisco with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Calistoga
Santa Clara
Walnut Creek
Berkeley
Big Sur
Fremont
Half Moon Bay
Daly City
Salinas
Vallejo
Sunnyvale
Livermore
Turlock

Why use momondo?

Why should I use momondo to find a flight deal from Siem Reap to San Francisco?

Finding the right flight to San Francisco from Siem Reap is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

Can I find flights from Siem Reap to San Francisco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Francisco from Siem Reap with this policy.

How can momondo help me find flights from Siem Reap to San Francisco?

Once all potential Siem Reap to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Siem Reap to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Siem Reap to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 3/10
Tue 3/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States