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Cheap flights from Siem Reap to San Francisco from $539

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 11/5. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Siem Reap to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 6:40 am
SAI
-
SFO
26h 15m
2 stops
Multiple Airlines Logo
11:50 pm - 6:45 pm
SFO
-
SAI
27h 55m
2 stops
$1,112Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
7:25 pm - 6:40 am
SAI
-
SFO
26h 15m
2 stops
Multiple Airlines Logo
11:50 pm - 6:45 pm
SFO
-
SAI
27h 55m
2 stops
$1,113Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
9:55 am - 3:00 pm
SAI
-
SFO
20h 05m
2 stops
Multiple Airlines Logo
11:30 pm - 4:10 pm
SFO
-
SAI
25h 40m
3 stops
$1,153Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
9:55 am - 3:00 pm
SAI
-
SFO
20h 05m
2 stops
Multiple Airlines Logo
11:30 pm - 4:10 pm
SFO
-
SAI
25h 40m
3 stops
$1,154Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Singapore Airlines Logo
4:45 pm - 7:50 am
SAI
-
SFO
54h 05m
1 stop
Singapore Airlines Logo
9:40 am - 9:50 am
SFO
-
SAI
33h 10m
1 stop
$1,439Singapore Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
6:40 pm - 5:00 pm
SAI
-
SFO
37h 20m
1 stop
Multiple Airlines Logo
11:30 pm - 2:25 pm
SFO
-
SAI
23h 55m
2 stops
$2,367Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
9:30 pm - 5:00 pm
SAI
-
SFO
34h 30m
1 stop
Multiple Airlines Logo
3:40 pm - 12:40 pm
SFO
-
SAI
30h 00m
2 stops
$2,467Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
9:30 pm - 5:00 pm
SAI
-
SFO
34h 30m
1 stop
Multiple Airlines Logo
3:40 pm - 12:40 pm
SFO
-
SAI
30h 00m
2 stops
$2,468Multiple Airlines
Fri, Dec 18 - Mon, Dec 28
Multiple Airlines Logo
5:05 pm - 5:00 pm
SAI
-
SFO
38h 55m
3 stops
Multiple Airlines Logo
10:55 pm - 4:10 pm
SFO
-
SAI
50h 15m
3 stops
$2,944Multiple Airlines
Fri, Dec 18 - Mon, Dec 28

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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 June 29, 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 12/18

7:25 pm-6:40 am

2 stops26h 15m

San Francisco

Mon 12/28

11:50 pm-6:45 pm

2 stops27h 55m

$1,112

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

7:25 pm-6:40 am

2 stops26h 15m

San Francisco

Mon 12/28

11:50 pm-6:45 pm

2 stops27h 55m

$1,113
Quickest round-trip

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

9:55 am-3:00 pm

2 stops20h 05m

San Francisco

Mon 12/28

11:30 pm-4:10 pm

3 stops25h 40m

$1,153

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

9:55 am-3:00 pm

2 stops20h 05m

San Francisco

Mon 12/28

11:30 pm-4:10 pm

3 stops25h 40m

$1,154

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

4:45 pm-7:50 am

1 stop54h 05m

San Francisco

Mon 12/28

9:40 am-9:50 am

1 stop33h 10m

$1,439

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

6:40 pm-5:00 pm

1 stop37h 20m

San Francisco

Mon 12/28

11:30 pm-2:25 pm

2 stops23h 55m

$2,367

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

9:30 pm-5:00 pm

1 stop34h 30m

San Francisco

Mon 12/28

3:40 pm-12:40 pm

2 stops30h 00m

$2,467

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

9:30 pm-5:00 pm

1 stop34h 30m

San Francisco

Mon 12/28

3:40 pm-12:40 pm

2 stops30h 00m

$2,468

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Fri 12/18

5:05 pm-5:00 pm

3 stops38h 55m

San Francisco

Mon 12/28

10:55 pm-4:10 pm

3 stops50h 15m

$2,944
Cheapest one-way

Siem ReapSan Francisco

SAI - SFO

SAISFO

Siem Reap–Angkor Intl

Thu 11/5

4:45 pm-7:50 am

1 stop30h 05m

$539

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Siem Reap to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Siem Reap to San Francisco flights?

You could potentially save up to 13% on your flight if you consider stops on a Siem Reap to San Francisco flight.

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

26h 15m

Direct flights

None
The fastest flight from Siem Reap to San Francisco takes 26h 15m
There are no direct flights from Siem Reap to San Francisco. There are no popular flight routes from Siem Reap to San Francisco.
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Frequently asked questions about flying from Siem Reap to San Francisco

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

    The distance between Siem Reap–Angkor Intl and San Francisco is about 7799.7 mi. Flights usually cover this in 26h 15m, 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.

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
Bodega Bay
South San Francisco
Sonoma
Fremont
Hayward
Roseville
Walnut Creek
Santa Clara
Berkeley
Vallejo
Salinas
Sunnyvale
Big Sur
Burlingame
Daly City
Milpitas
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.

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