What is the cheapest airline that flies from United States to Siem Reap?

Singapore Airlines, China Eastern, and Vietnam Airlines are the most popular carriers operating from United States to Siem Reap

How long is the flight from United States to Region of Siem Reap?

Average flight duration from United States to Region of Siem Reap depends on which airport you fly into and out of. Flying from San Francisco to Siem Reap is 20h 50m on average, while flying from Los Angeles to Siem Reap is 22h 25m on average. Siem Reap is the most popular airport in Region of Siem Reap.

When did momondo last update prices for flights from United States to Siem Reap?

Prices for flights from United States to Siem Reap are refreshed on a daily basis.

How many operators does momondo search for flights from United States to Siem Reap?

There are 2 operators available for flights from United States to Siem Reap as of July 2026.

How old do you have to be to fly from United States to Siem Reap?

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 United States to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The travel and health documents you'll need for your trip to Siem Reap may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$386 Cheap Flights from the United States to Siem Reap in 2026

Find the cheapest flights from the United States to Siem Reap

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Siem Reap

Enter your travel dates to find the best prices.

12:30 pm - 8:10 pm

LAX

SAI

65h 40m

3 stops

9:10 pm - 10:05 am

SAI

LAX

26h 55m

2 stops

$703China Eastern

Sun, Aug 16 - Wed, Aug 26

12:30 pm - 8:10 pm

LAX

SAI

65h 40m

3 stops

9:10 pm - 10:05 am

SAI

LAX

26h 55m

2 stops

$706China Eastern

Sun, Aug 16 - Wed, Aug 26

12:00 pm - 8:10 pm

SFO

SAI

42h 10m

2 stops

10:00 pm - 9:00 am

SAI

SFO

50h 00m

2 stops

$715China Eastern

Mon, Oct 19 - Sat, Nov 7

11:45 am - 3:10 pm

SFO

SAI

37h 25m

1 stop

10:45 am - 8:50 am

SAI

SFO

36h 05m

1 stop

$796Singapore Airlines

Wed, Oct 14 - Wed, Oct 28

10:15 am - 9:40 am

SEA

SAI

33h 25m

1 stop

4:00 pm - 8:45 am

SAI

SEA

30h 45m

1 stop

$801Singapore Airlines

Sat, Oct 10 - Fri, Oct 16

12:30 pm - 8:10 pm

LAX

SAI

41h 40m

3 stops

7:20 pm - 10:05 am

SAI

LAX

28h 45m

2 stops

$836Multiple Airlines

Wed, Aug 12 - Tue, Sep 1

11:30 am - 9:10 am

LAX

SAI

30h 40m

2 stops

10:00 pm - 9:05 am

SAI

LAX

50h 05m

3 stops

$851Multiple Airlines

Tue, Dec 1 - Tue, Dec 22

10:50 pm - 6:20 pm

SFO

SAI

29h 30m

1 stop

6:40 pm - 5:00 pm

SAI

SFO

37h 20m

1 stop

$929Vietnam Airlines

Wed, Oct 21 - Wed, Nov 4

11:20 am - 9:30 pm

JFK

SAI

23h 10m

2 stops

11:50 pm - 6:55 pm

SAI

JFK

30h 05m

3 stops

$1,091Emirates

Mon, Aug 31 - Tue, Sep 15

11:20 am - 9:30 pm

JFK

SAI

23h 10m

2 stops

11:50 pm - 2:55 pm

SAI

JFK

50h 05m

2 stops

$1,190Emirates

Fri, Oct 23 - Sat, Oct 31

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China Eastern flights from United States to Region of Siem Reap

Our best China Eastern deals on United States to Region of Siem Reap flight tickets

China Eastern

Aug 16

LAX12:30 pmLos Angeles

65h 40m

3 stops

SAI8:10 pmSiem Reap–Angkor Intl

Aug 26

SAI9:10 pmSiem Reap–Angkor Intl

26h 55m

2 stops

LAX10:05 amLos Angeles

$703

China Eastern

Aug 16

LAX12:30 pmLos Angeles

65h 40m

3 stops

SAI8:10 pmSiem Reap–Angkor Intl

Aug 26

SAI9:10 pmSiem Reap–Angkor Intl

26h 55m

2 stops

LAX10:05 amLos Angeles

$706

China Eastern

Oct 19

SFO12:00 pmSan Francisco

42h 10m

2 stops

SAI8:10 pmSiem Reap–Angkor Intl

Nov 7

SAI10:00 pmSiem Reap–Angkor Intl

50h 00m

2 stops

SFO9:00 amSan Francisco

$715

Singapore Airlines flights from United States to Region of Siem Reap

Our best Singapore Airlines deals on United States to Region of Siem Reap flight tickets

Singapore Airlines

Oct 14

SFO11:45 amSan Francisco

37h 25m

1 stop

SAI3:10 pmSiem Reap–Angkor Intl

Oct 28

SAI10:45 amSiem Reap–Angkor Intl

36h 05m

1 stop

SFO8:50 amSan Francisco

$796

Singapore Airlines

Oct 10

SEA10:15 amSeattle/Tacoma Intl

33h 25m

1 stop

SAI9:40 amSiem Reap–Angkor Intl

Oct 16

SAI4:00 pmSiem Reap–Angkor Intl

30h 45m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$801

Singapore Airlines

Oct 10

SEA10:15 amSeattle/Tacoma Intl

33h 25m

1 stop

SAI9:40 amSiem Reap–Angkor Intl

Oct 16

SAI4:00 pmSiem Reap–Angkor Intl

30h 45m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$804

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Sun 8/16

12:30 pm-8:10 pm

3 stops65h 40m

Siem Reap–Angkor Intl

Wed 8/26

9:10 pm-10:05 am

2 stops26h 55m

$703

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Sun 8/16

12:30 pm-8:10 pm

3 stops65h 40m

Siem Reap–Angkor Intl

Wed 8/26

9:10 pm-10:05 am

2 stops26h 55m

$706

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Mon 10/19

12:00 pm-8:10 pm

2 stops42h 10m

Siem Reap–Angkor Intl

Sat 11/7

10:00 pm-9:00 am

2 stops50h 00m

$715

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 10/14

11:45 am-3:10 pm

1 stop37h 25m

Siem Reap–Angkor Intl

Wed 10/28

10:45 am-8:50 am

1 stop36h 05m

$796

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Sat 10/10

10:15 am-9:40 am

1 stop33h 25m

Siem Reap–Angkor Intl

Fri 10/16

4:00 pm-8:45 am

1 stop30h 45m

$801

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Wed 8/12

12:30 pm-8:10 pm

3 stops41h 40m

Siem Reap–Angkor Intl

Tue 9/1

7:20 pm-10:05 am

2 stops28h 45m

$836

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Tue 12/1

11:30 am-9:10 am

2 stops30h 40m

Siem Reap–Angkor Intl

Tue 12/22

10:00 pm-9:05 am

3 stops50h 05m

$851

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 10/21

10:50 pm-6:20 pm

1 stop29h 30m

Siem Reap–Angkor Intl

Wed 11/4

6:40 pm-5:00 pm

1 stop37h 20m

$929

Quickest round-trip

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Mon 8/31

11:20 am-9:30 pm

2 stops23h 10m

Siem Reap–Angkor Intl

Tue 9/15

11:50 pm-6:55 pm

3 stops30h 05m

$1,091

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Fri 10/23

11:20 am-9:30 pm

2 stops23h 10m

Siem Reap–Angkor Intl

Sat 10/31

11:50 pm-2:55 pm

2 stops50h 05m

$1,190

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 United States to Region of 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 Region of Siem Reap?

The month of January is another great option to travel to Region of Siem Reap, with average flight prices from United States averaging around $512.

Can stopping save me money on United States to Region of Siem Reap flights?

You could potentially save up to 26% on your flight if you consider stops on a United States to Region of Siem Reap flight.

Cheap United States to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Region of Siem Reap

Fastest flight time	20h 50m
Direct flights	None

The fastest flight from United States to Region of Siem Reap takes 20h 50m

There are no direct flights from United States to Region of Siem Reap. There are no popular flight routes from United States to Region of Siem Reap.

Search flight deals

Frequently asked questions about flying from the United States to Siem Reap

When did momondo last update prices for flights from United States to Siem Reap?
Prices for flights from United States to Siem Reap are refreshed on a daily basis.
How many operators does momondo search for flights from United States to Siem Reap?
There are 2 operators available for flights from United States to Siem Reap as of July 2026.
How old do you have to be to fly from United States to Siem Reap?
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 United States to Siem Reap.
What documentation or ID do you need to fly to Siem Reap?
The travel and health documents you'll need for your trip to Siem Reap may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United States to Region of Siem Reap

Compare and see reviews for airlines that fly from United States to Region of Siem Reap with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $511	Free Cancellation	Rating 8.2 1,565 reviews		Search Singapore Airlines flights
Vietnam Airlines	PriceFrom $647	Free Cancellation	Rating 7.7 279 reviews		Search Vietnam Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to Siem Reap. momondo saves you time and could save you money on your trip.

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

Flights from United States 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 United States to Siem Reap?

Once all potential United States to Siem Reap 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 United States to Siem Reap right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from United States and alert you when they change.

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Cheap flights from the United States to Siem Reap from $386

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Siem Reap departing on 8/16. 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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China Eastern flights from United States to Region of Siem Reap

Our best China Eastern deals on United States to Region of Siem Reap flight tickets

Singapore Airlines flights from United States to Region of Siem Reap

Our best Singapore Airlines deals on United States to Region of Siem Reap flight tickets

momondo Fare Finder

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

See travel insights to Siem Reap from

How to get the cheapest flight ticket from United States to Region of Siem Reap

What is the cheapest month to fly to Region of Siem Reap?

Can stopping save me money on United States to Region of Siem Reap flights?

What is the cheapest airline that flies from United States to Siem Reap?

How long is the flight from United States to Region of Siem Reap?

Cheap United States to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Region of Siem Reap

Fastest flight time

Direct flights

Frequently asked questions about flying from the United States to Siem Reap

Best airlines flying from United States to Region of Siem Reap

Compare and see reviews for airlines that fly from United States to Region of Siem Reap with momondo

Why use momondo?

An easier way to manage your Region of 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 Siem Reap

Popular cities in Siem Reap

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

United States flight routes

According to popular flight searches on momondo this year

Region of Siem Reap flight routes

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Fly your favorite airline to Siem Reap

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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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