How long does it take to fly to Siem Reap?

On average, it takes 21h 50m to fly from California to Siem Reap if you fly out of Los Angeles (the most popular airport in California) and into Siem Reap (the most popular airport in Siem Reap). If you’re flying out of San Francisco and into Siem Reap, then the flight time is around 29h 50m.

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

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

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 February 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.

$341 Cheap Flights from California to Siem Reap in 2026

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Find the cheapest flights from California to Siem Reap

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:00 am - 9:40 am

SFO

SAI

32h 40m

1 stop

10:30 am - 9:10 am

SAI

SFO

36h 40m

1 stop

$613Singapore Airlines

Thu, Apr 30 - Thu, May 14

11:30 pm - 3:10 pm

LAX

SAI

25h 40m

1 stop

10:30 am - 9:20 pm

SAI

LAX

24h 50m

1 stop

$628Singapore Airlines

Wed, Apr 29 - Wed, May 6

11:30 pm - 3:10 pm

LAX

SAI

25h 40m

1 stop

4:00 pm - 1:43 pm

SAI

LAX

35h 43m

2 stops

$704Multiple Airlines

Wed, Apr 29 - Wed, May 6

12:25 pm - 9:00 am

LAX

SAI

30h 35m

2 stops

9:40 am - 4:30 pm

SAI

LAX

20h 50m

2 stops

$751Multiple Airlines

Fri, Apr 10 - Thu, Apr 16

12:30 pm - 8:10 pm

LAX

SAI

41h 40m

2 stops

9:10 pm - 10:05 am

SAI

LAX

50h 55m

3 stops

$784China Eastern

Sat, Apr 11 - Fri, Apr 17

12:30 pm - 8:10 pm

LAX

SAI

41h 40m

3 stops

9:10 pm - 10:05 am

SAI

LAX

50h 55m

3 stops

$831China Eastern

Sat, Aug 8 - Mon, Aug 31

10:50 pm - 6:40 pm

SFO

SAI

29h 50m

1 stop

7:40 pm - 5:55 pm

SAI

SFO

36h 15m

1 stop

$837Vietnam Airlines

Sat, Apr 18 - Tue, Apr 28

10:50 pm - 6:40 pm

SFO

SAI

29h 50m

1 stop

7:40 pm - 5:55 pm

SAI

SFO

36h 15m

1 stop

$877Vietnam Airlines

Sat, Apr 18 - Sat, May 2

5:55 pm - 3:55 pm

SAN

SAI

31h 00m

2 stops

4:45 pm - 2:49 pm

SAI

SAN

36h 04m

2 stops

$1,144United Airlines

Tue, Mar 3 - Tue, Mar 10

6:00 am - 9:40 am

ONT

SAI

37h 40m

2 stops

10:30 am - 5:47 pm

SAI

ONT

45h 17m

2 stops

$1,149United Airlines

Mon, Apr 20 - Sun, Apr 26

United Airlines flights from California to Siem Reap

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

United Airlines

Apr 15

LAX7:15 amLos Angeles

36h 25m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Apr 26

SAI10:30 amSiem Reap–Angkor Intl

41h 09m

2 stops

LAX1:39 pmLos Angeles

$1,049

United Airlines

Apr 16

LAX10:35 pmLos Angeles

45h 05m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Apr 29

SAI10:30 amSiem Reap–Angkor Intl

27h 57m

2 stops

LAX12:27 amLos Angeles

$1,066

United Airlines

Mar 3

SAN5:55 pmSan Diego

31h 00m

2 stops

SAI3:55 pmSiem Reap–Angkor Intl

Mar 10

SAI4:45 pmSiem Reap–Angkor Intl

36h 04m

2 stops

SAN2:49 pmSan Diego

$1,144

China Eastern flights from California to Siem Reap

Our best China Eastern deals on California to Siem Reap flight tickets

China Eastern

Apr 11

LAX12:30 pmLos Angeles

41h 40m

2 stops

SAI8:10 pmSiem Reap–Angkor Intl

Apr 17

SAI9:10 pmSiem Reap–Angkor Intl

50h 55m

3 stops

LAX10:05 amLos Angeles

$784

China Eastern

Aug 8

LAX12:30 pmLos Angeles

41h 40m

3 stops

SAI8:10 pmSiem Reap–Angkor Intl

Aug 31

SAI9:10 pmSiem Reap–Angkor Intl

50h 55m

3 stops

LAX10:05 amLos Angeles

$831

China Eastern

Apr 11

LAX12:30 pmLos Angeles

41h 40m

3 stops

SAI8:10 pmSiem Reap–Angkor Intl

Apr 17

SAI9:10 pmSiem Reap–Angkor Intl

50h 55m

3 stops

LAX10:05 amLos Angeles

$852

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/30

11:00 am-9:40 am

1 stop32h 40m

Siem Reap–Angkor Intl

Thu 5/14

10:30 am-9:10 am

1 stop36h 40m

$613

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Wed 4/29

11:30 pm-3:10 pm

1 stop25h 40m

Siem Reap–Angkor Intl

Wed 5/6

10:30 am-9:20 pm

1 stop24h 50m

$628

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Wed 4/29

11:30 pm-3:10 pm

1 stop25h 40m

Siem Reap–Angkor Intl

Wed 5/6

4:00 pm-1:43 pm

2 stops35h 43m

$704

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Fri 4/10

12:25 pm-9:00 am

2 stops30h 35m

Siem Reap–Angkor Intl

Thu 4/16

9:40 am-4:30 pm

2 stops20h 50m

$751

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Sat 4/11

12:30 pm-8:10 pm

2 stops41h 40m

Siem Reap–Angkor Intl

Fri 4/17

9:10 pm-10:05 am

3 stops50h 55m

$784

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Sat 8/8

12:30 pm-8:10 pm

3 stops41h 40m

Siem Reap–Angkor Intl

Mon 8/31

9:10 pm-10:05 am

3 stops50h 55m

$831

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Sat 4/18

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Tue 4/28

7:40 pm-5:55 pm

1 stop36h 15m

$837

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Sat 4/18

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Sat 5/2

7:40 pm-5:55 pm

1 stop36h 15m

$877

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Tue 3/3

5:55 pm-3:55 pm

2 stops31h 00m

Siem Reap–Angkor Intl

Tue 3/10

4:45 pm-2:49 pm

2 stops36h 04m

$1,144

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Mon 4/20

6:00 am-9:40 am

2 stops37h 40m

Siem Reap–Angkor Intl

Sun 4/26

10:30 am-5:47 pm

2 stops45h 17m

$1,149

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

Can stopping save me money on California to Siem Reap flights?

You could potentially save up to 61% on your flight if you consider stops on a California to Siem Reap flight.

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

Fastest flight time	21h 50m
Direct flights	None

The fastest flight from California to Siem Reap takes 21h 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

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 February 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 $628	Free Cancellation	Rating 8.2 1,452 reviews		Search Singapore Airlines flights
Vietnam Airlines	PriceFrom $789	Free Cancellation	Rating 7.6 224 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.

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.

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Cheap flights from California to Siem Reap from $341

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 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Trusted and free

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Find the cheapest flights from California to Siem Reap

Cheap round-trip flights

Cheap one-way flights

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United Airlines flights from California to Siem Reap

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

China Eastern flights from California to Siem Reap

Our best China Eastern 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.

See travel insights to Siem Reap from

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

Can stopping save me money on California to Siem Reap flights?

You could potentially save up to 61% on your flight if you consider stops on a California to Siem Reap flight.

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

Singapore Airlines, China Eastern, 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 21h 50m to fly from California to Siem Reap if you fly out of Los Angeles (the most popular airport in California) and into Siem Reap (the most popular airport in Siem Reap). If you’re flying out of San Francisco and into Siem Reap, then the flight time is around 29h 50m.

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

Fastest flight time

Direct flights

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

How many operators does momondo search 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?

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

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?

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

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

How can momondo help me find flights 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?

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.

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