What is the cheapest airline that flies from California to Siem Reap–Angkor Intl?

Singapore Airlines, Vietnam Airlines, and United Airlines are the most popular carriers operating from California to Siem Reap–Angkor Intl

How long does it take to fly to Siem Reap?

On average, it takes 25h 21m to fly from California to Siem Reap if you fly out of San Jose (the most popular airport in California) and into Siem Reap (the most popular airport in Siem Reap). If you’re flying out of Los Angeles and into Siem Reap, then the flight time is around 26h 55m.

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

Prices for flights from California to Siem Reap–Angkor Intl Airport were last updated today.

How many operators does momondo search for flights from California to Siem Reap–Angkor Intl Airport?

As of September 2026, there are 2 operators available to choose from for flights from California to Siem Reap–Angkor Intl Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Siem Reap–Angkor Intl Airport.

What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

The required travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$361 Cheap Flights from California to Siem Reap in 2026

Find the cheapest flights from California to Siem Reap

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:40 am - 4:00 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

39h 20m1 stop Singapore Changi

10:45 am - 7:50 amSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 05m1 stop Singapore Changi

$801Singapore Airlines

Thu, Feb 4 - Sat, Feb 13

9:40 am - 4:00 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

39h 20m1 stop Singapore Changi

10:45 am - 7:50 amSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 05m1 stop Singapore Changi

$801Singapore Airlines

Mon, Nov 2 - Wed, Nov 11

9:40 am - 4:00 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

39h 20m1 stop Singapore Changi

4:50 pm - 7:50 amSAI Siem Reap–Angkor Intl-SFO San Francisco

30h 00m1 stop Singapore Changi

$801Singapore Airlines

Mon, Feb 8 - Thu, Feb 18

9:40 am - 4:00 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

39h 20m1 stop Singapore Changi

10:45 am - 7:50 amSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 05m1 stop Singapore Changi

$801Singapore Airlines

Tue, Nov 3 - Wed, Nov 11

11:30 am - 9:00 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

42h 30m2 stops Shanghai Pu Dong Kunming Changshui

10:00 pm - 9:05 amSAI Siem Reap–Angkor Intl-LAX Los Angeles

50h 05m3 stops Kunming Changshui Fuzhou Shanghai Pu Dong

$802China Eastern

Thu, Nov 19 - Tue, Dec 8

11:30 am - 9:00 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

42h 30m2 stops Shanghai Pu Dong Kunming Changshui

10:00 pm - 9:05 amSAI Siem Reap–Angkor Intl-LAX Los Angeles

26h 05m2 stops Kunming Changshui Shanghai Pu Dong

$802China Eastern

Thu, Nov 19 - Tue, Dec 8

11:30 am - 9:00 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

42h 30m3 stops Shanghai Pu Dong Fuzhou Kunming Changshui

10:00 pm - 9:05 amSAI Siem Reap–Angkor Intl-LAX Los Angeles

50h 05m3 stops Kunming Changshui Fuzhou Shanghai Pu Dong

$802China Eastern

Thu, Nov 19 - Tue, Dec 8

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

7:10 pm - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 45m1 stop Ho Chi Minh City

$809Vietnam Airlines

Thu, Oct 8 - Tue, Oct 13

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

7:10 pm - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 45m1 stop Ho Chi Minh City

$809Vietnam Airlines

Wed, Oct 7 - Wed, Oct 14

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

7:10 pm - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 45m1 stop Ho Chi Minh City

$809Vietnam Airlines

Thu, Oct 8 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

7:10 pm - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 45m1 stop Ho Chi Minh City

$809Vietnam Airlines

Thu, Sep 10 - Wed, Sep 16

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

7:10 pm - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

36h 45m1 stop Ho Chi Minh City

$849Vietnam Airlines

Sat, Sep 12 - Wed, Sep 16

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

9:35 am - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

22h 20m1 stop Ho Chi Minh City

$940Vietnam Airlines

Thu, Sep 10 - Thu, Sep 24

10:50 pm - 6:20 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

29h 30m1 stop Ho Chi Minh City

9:35 am - 5:55 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

22h 20m1 stop Ho Chi Minh City

$977Vietnam Airlines

Sat, Sep 12 - Thu, Sep 17

1:20 am - 6:45 pmSFO San Francisco-SAI Siem Reap–Angkor Intl

27h 25m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:40 am - 10:40 pmSAI Siem Reap–Angkor Intl-SFO San Francisco

27h 00m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$1,015Multiple Airlines

Fri, Sep 11 - Thu, Sep 17

4:50 pm - 9:00 amLAX Los Angeles-SAI Siem Reap–Angkor Intl

26h 10m2 stops Tokyo Haneda Bangkok Suvarnabhumi

7:10 pm - 3:10 pmSAI Siem Reap–Angkor Intl-LAX Los Angeles

34h 00m2 stops Ho Chi Minh City Tokyo Haneda

$1,016Multiple Airlines

Wed, Sep 9 - Sun, Sep 13

10:45 am - 5:10 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

40h 25m2 stops Tokyo Narita Hanoi Noibai

7:10 pm - 3:10 pmSAI Siem Reap–Angkor Intl-LAX Los Angeles

34h 00m2 stops Ho Chi Minh City Tokyo Haneda

$1,017ANA

Wed, Sep 9 - Sun, Sep 13

9:15 pm - 3:10 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

27h 55m1 stop Singapore Changi

4:00 pm - 9:50 pmSAI Siem Reap–Angkor Intl-LAX Los Angeles

19h 50m1 stop Singapore Changi

$1,128Singapore Airlines

Wed, Sep 9 - Sun, Sep 13

9:15 pm - 3:10 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

27h 55m1 stop Singapore Changi

4:00 pm - 9:50 pmSAI Siem Reap–Angkor Intl-LAX Los Angeles

19h 50m1 stop Singapore Changi

$1,134Singapore Airlines

Wed, Sep 9 - Sun, Sep 13

9:15 pm - 3:10 pmLAX Los Angeles-SAI Siem Reap–Angkor Intl

27h 55m1 stop Singapore Changi

4:00 pm - 12:50 pmSAI Siem Reap–Angkor Intl-LAX Los Angeles

34h 50m2 stops Singapore Changi Tokyo Narita

$1,140Singapore Airlines

Wed, Sep 9 - Sun, Sep 13

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Singapore Airlines flights from California to Siem Reap

Our best Singapore Airlines deals on California to Siem Reap flight tickets

Singapore Airlines

Nov 2

SFO9:40 amSan Francisco

39h 20m

1 stop

SAI4:00 pmSiem Reap–Angkor Intl

Nov 11

SAI10:45 amSiem Reap–Angkor Intl

36h 05m

1 stop

SFO7:50 amSan Francisco

$801

Singapore Airlines

Feb 1

LAX10:05 pmLos Angeles

26h 55m

1 stop

SAI4:00 pmSiem Reap–Angkor Intl

Feb 26

SAI10:45 amSiem Reap–Angkor Intl

22h 25m

1 stop

LAX6:10 pmLos Angeles

$813

Singapore Airlines

Feb 2

LAX10:05 pmLos Angeles

26h 55m

1 stop

SAI4:00 pmSiem Reap–Angkor Intl

Feb 26

SAI10:45 amSiem Reap–Angkor Intl

22h 25m

1 stop

LAX6:10 pmLos Angeles

$814

ANA flights from California to Siem Reap

Our best ANA deals on California to Siem Reap flight tickets

ANA

Sep 28

LAX12:45 pmLos Angeles

38h 25m

2 stops

SAI5:10 pmSiem Reap–Angkor Intl

Oct 20

SAI7:10 pmSiem Reap–Angkor Intl

29h 50m

2 stops

LAX11:00 amLos Angeles

$1,020

ANA

Sep 29

LAX12:45 pmLos Angeles

38h 25m

2 stops

SAI5:10 pmSiem Reap–Angkor Intl

Oct 20

SAI7:10 pmSiem Reap–Angkor Intl

31h 15m

2 stops

LAX12:25 pmLos Angeles

$1,049

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Thu 2/4

9:40 am-4:00 pm

1 stop39h 20m

Siem Reap–Angkor Intl

Sat 2/13

10:45 am-7:50 am

1 stop36h 05m

$801

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Mon 11/2

9:40 am-4:00 pm

1 stop39h 20m

Siem Reap–Angkor Intl

Wed 11/11

10:45 am-7:50 am

1 stop36h 05m

$801

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Mon 2/8

9:40 am-4:00 pm

1 stop39h 20m

Siem Reap–Angkor Intl

Thu 2/18

4:50 pm-7:50 am

1 stop30h 00m

$801

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Tue 11/3

9:40 am-4:00 pm

1 stop39h 20m

Siem Reap–Angkor Intl

Wed 11/11

10:45 am-7:50 am

1 stop36h 05m

$801

Los AngelesSiem Reap

LAX Los Angeles - SAI Siem Reap–Angkor Intl

LAXSAI

Los Angeles

Thu 11/19

11:30 am-9:00 pm

2 stops42h 30m

Siem Reap–Angkor Intl

Tue 12/8

10:00 pm-9:05 am

3 stops50h 05m

$802

Los AngelesSiem Reap

LAX Los Angeles - SAI Siem Reap–Angkor Intl

LAXSAI

Los Angeles

Thu 11/19

11:30 am-9:00 pm

2 stops42h 30m

Siem Reap–Angkor Intl

Tue 12/8

10:00 pm-9:05 am

2 stops26h 05m

$802

Los AngelesSiem Reap

LAX Los Angeles - SAI Siem Reap–Angkor Intl

LAXSAI

Los Angeles

Thu 11/19

11:30 am-9:00 pm

3 stops42h 30m

Siem Reap–Angkor Intl

Tue 12/8

10:00 pm-9:05 am

3 stops50h 05m

$802

Quickest round-trip

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Thu 10/8

10:50 pm-6:20 pm

1 stop29h 30m

Siem Reap–Angkor Intl

Tue 10/13

7:10 pm-5:55 pm

1 stop36h 45m

$809

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Wed 10/7

10:50 pm-6:20 pm

1 stop29h 30m

Siem Reap–Angkor Intl

Wed 10/14

7:10 pm-5:55 pm

1 stop36h 45m

$809

San FranciscoSiem Reap

SFO San Francisco - SAI Siem Reap–Angkor Intl

SFOSAI

San Francisco

Thu 10/8

10:50 pm-6:20 pm

1 stop29h 30m

Siem Reap–Angkor Intl

Wed 10/14

7:10 pm-5:55 pm

1 stop36h 45m

$809

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from California to Siem Reap

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

Prices

Airlines

Other information

What is the cheapest month to fly to Siem Reap?

If you don’t want to visit Siem Reap in August, then you should wait until April to fly from California, when ticket prices are also cheap, with an average price of $685.

Cheap California to Siem Reap flight deals and tips

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

Best Price Found	$361
Fastest flight time	22h 50m
Direct flights	None

The best one-way flight to Siem Reap from California in the past 72 hours is $361. The best round-trip flight deal from California to Siem Reap found on momondo in the last 72 hours is $801.

The fastest flight from California to Siem Reap takes 22h 50m

There are no direct flights from California to Siem Reap. There are no popular flight routes from California to Siem Reap.

Search flight deals

Frequently asked questions about flying from California to Siem Reap

When did momondo last update prices for flights from California to Siem Reap–Angkor Intl Airport?
Prices for flights from California to Siem Reap–Angkor Intl Airport were last updated today.
How many operators does momondo search for flights from California to Siem Reap–Angkor Intl Airport?
As of September 2026, there are 2 operators available to choose from for flights from California to Siem Reap–Angkor Intl Airport.
How old do you have to be to fly from California to Siem Reap–Angkor Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Siem Reap–Angkor Intl Airport.
What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?
The required travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from California to Siem Reap

Compare and see reviews for airlines that fly from California to Siem Reap with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $511	Free Cancellation	Rating 8.2 1,598 reviews		Search Singapore Airlines flights
Vietnam Airlines	PriceFrom $647	Free Cancellation	Rating 7.7 286 reviews		Search Vietnam Airlines flights

Why use momondo?

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

Finding the right flight to Siem Reap from California 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 Siem Reap quick and easy, saving you time and money.

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

Flights from California to Siem Reap with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from California to Siem Reap.

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

Price alerts on flights to Siem Reap from California are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from California to Siem Reap from $361

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Siem Reap departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Singapore Airlines flights from California to Siem Reap

Our best Singapore Airlines deals on California to Siem Reap flight tickets

ANA flights from California to Siem Reap

Our best ANA deals on California to Siem Reap flight tickets

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Use the filters below to find and compare flights from California to Siem Reap that are best for you.

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How to get the cheapest flight ticket from California to Siem Reap

What is the cheapest month to fly to Siem Reap?

What is the cheapest airline that flies from California to Siem Reap–Angkor Intl?

How long does it take to fly to Siem Reap?

Cheap California to Siem Reap flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from California to Siem Reap

Best airlines flying from California to Siem Reap

Compare and see reviews for airlines that fly from California to Siem Reap with momondo

Why use momondo?

An easier way to manage your Siem Reap 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Cambodia

Fly your favorite airline to Siem Reap

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Siem Reap

List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

Popular cities in Cambodia

Popular flights according to clicks in the last 7 days on momondo

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