How does KAYAK find such low prices on flights from Siem Reap to San Francisco?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Siem Reap to San Francisco. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Siem Reap to San Francisco?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Siem Reap is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Siem Reap to San Francisco?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Siem Reap with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Siem Reap to San Francisco?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$572 CHEAP FLIGHTS from Siem Reap to San Francisco

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

Cheap Flights from Siem Reap to San Francisco

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Siem Reap to San Francisco

Fri, Jun 19 - Wed, Jul 1

7:10 pm - 5:55 pm

SAI

SFO

36h 45m

1 stop

10:50 pm - 6:20 pm

SFO

SAI

29h 30m

1 stop

$970Vietnam Airlines

Sun, Jun 7 - Sat, Nov 21

12:55 pm - 8:10 pm

SAI

SFO

21h 15m

2 stops

12:00 pm - 9:15 am

SFO

SAI

30h 15m

2 stops

$997Multiple Airlines

Thu, Jun 18 - Tue, Jun 30

12:55 pm - 8:10 pm

SAI

SFO

21h 15m

2 stops

1:15 am - 6:20 pm

SFO

SAI

27h 05m

2 stops

$999Multiple Airlines

Sun, Jun 7 - Sat, Nov 21

10:30 am - 9:50 am

SAI

SFO

37h 20m

1 stop

9:10 pm - 5:40 pm

SFO

SAI

29h 30m

1 stop

$1,017Multiple Airlines

Sun, Jun 7 - Sat, Nov 21

9:45 am - 5:55 pm

SAI

SFO

22h 10m

1 stop

9:10 pm - 5:40 pm

SFO

SAI

29h 30m

1 stop

$1,026Multiple Airlines

Tue, Apr 28 - Sat, May 30

7:30 pm - 6:35 am

SAI

SFO

25h 05m

2 stops

1:15 am - 5:10 pm

SFO

SAI

25h 55m

2 stops

$1,033Multiple Airlines

Tue, Apr 28 - Sun, May 31

7:10 pm - 5:55 pm

SAI

SFO

36h 45m

1 stop

10:50 pm - 6:20 pm

SFO

SAI

29h 30m

1 stop

$1,037Vietnam Airlines

Sun, Jun 7 - Sat, Nov 21

12:55 pm - 8:10 pm

SAI

SFO

21h 15m

2 stops

11:50 pm - 4:10 pm

SFO

SAI

25h 20m

3 stops

$1,068Multiple Airlines

Sun, Jun 7 - Sat, Nov 21

9:40 am - 8:30 pm

SAI

SFO

24h 50m

2 stops

9:10 pm - 8:30 pm

SFO

SAI

32h 20m

1 stop

$1,074Multiple Airlines

Sun, Jun 7 - Sat, Nov 21

7:10 pm - 6:45 am

SAI

SFO

25h 35m

2 stops

9:10 pm - 8:30 pm

SFO

SAI

32h 20m

1 stop

$1,075Multiple Airlines

Useful Info

How does KAYAK find such low prices on flights from Siem Reap to San Francisco?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Siem Reap to San Francisco.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Siem Reap to San Francisco?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Siem Reap is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Siem Reap to San Francisco?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Siem Reap with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Siem Reap to San Francisco?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Calistoga

Rohnert Park

Marina

Emeryville

Capitola

Pacifica

Millbrae

Campbell

Newark

Mill Valley

Novato

Windsor

Belmont

Union City

Richmond

West Sacramento

American Canyon

Corte Madera

Los Altos

Jenner

Everything you need to know for your flight to San Francisco

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in San Francisco

San Francisco (SFO)

$572 Find Cheap Flights from Siem Reap to San Francisco

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

Cheap Flights from Siem Reap to San Francisco

Recent round-trip flight deals from Siem Reap to San Francisco

Recent one-way flight deals from Siem Reap to San Francisco

FAQs for booking flights from Siem Reap to San Francisco

How does KAYAK find such low prices on flights from Siem Reap to San Francisco?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Siem Reap to San Francisco.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Siem Reap to San Francisco?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Siem Reap is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Siem Reap to San Francisco?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Siem Reap with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Siem Reap to San Francisco?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Francisco?

Everything you need to know for your flight to San Francisco

Information on the airport you'll fly into in San Francisco

Cabin class types available on flights to Siem Reap

Complete your trip to San Francisco with a hotel stay or car rental

Find direct flights for San Francisco

Flights to other popular destinations

Flights from domestic origins to San Francisco

Choose which airport to fly into in San Francisco

Find deals for your return flight