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

Singapore Airlines, Vietnam Airlines, and Emirates 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 Los Angeles to Siem Reap is 21h 50m on average, while flying from New York to Siem Reap is 22h 50m 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 3 operators available for flights from United States to Siem Reap as of February 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.

$274 Cheap Flights from the United States to Siem Reap in 2026

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Find the cheapest flights from the United States to Siem Reap

Round-trip

One-way

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

Enter your travel dates to find the best prices.

12:30 pm - 9:00 pm

LAX

SAI

42h 30m

2 stops

10:00 pm - 10:05 am

SAI

LAX

50h 05m

2 stops

$723China Eastern

Thu, Mar 12 - Thu, Mar 19

11:38 am - 9:40 am

SEA

SAI

32h 02m

2 stops

10:30 am - 8:45 am

SAI

SEA

36h 15m

1 stop

$752Multiple Airlines

Wed, May 20 - Wed, May 27

9:45 am - 3:55 pm

SEA

SAI

40h 10m

1 stop

10:45 am - 8:10 am

SAI

SEA

35h 25m

1 stop

$763Singapore Airlines

Sun, Mar 8 - Mon, Mar 23

8:45 am - 3:55 pm

SEA

SAI

40h 10m

1 stop

10:45 am - 8:10 am

SAI

SEA

35h 25m

1 stop

$776Singapore Airlines

Thu, Mar 5 - Thu, Mar 12

12:00 pm - 9:00 pm

SFO

SAI

42h 00m

2 stops

10:00 pm - 10:00 am

SAI

SFO

50h 00m

2 stops

$787China Eastern

Thu, Mar 5 - Thu, Mar 12

10:50 pm - 6:40 pm

SFO

SAI

29h 50m

1 stop

5:20 pm - 5:55 pm

SAI

SFO

62h 35m

3 stops

$951Vietnam Airlines

Thu, Apr 30 - Thu, May 14

10:35 pm - 3:55 pm

SFO

SAI

26h 20m

1 stop

4:45 pm - 10:15 pm

SAI

SFO

19h 30m

1 stop

$958United Airlines

Tue, Mar 3 - Thu, Mar 12

10:40 am - 3:55 pm

SFO

SAI

38h 15m

2 stops

4:45 pm - 10:15 pm

SAI

SFO

19h 30m

1 stop

$970United Airlines

Tue, Mar 3 - Thu, Mar 12

5:45 pm - 12:15 pm

CLT

SAI

31h 30m

3 stops

7:25 pm - 9:52 pm

SAI

CLT

37h 27m

3 stops

$1,674Qatar Airways

Fri, Apr 10 - Mon, Apr 27

5:45 pm - 12:15 pm

CLT

SAI

31h 30m

3 stops

12:55 pm - 1:11 pm

SAI

CLT

35h 16m

3 stops

$1,729Qatar Airways

Thu, Apr 9 - Sun, Apr 26

Vietnam Airlines flights from United States to Region of Siem Reap

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

Vietnam Airlines

Apr 30

SFO10:50 pmSan Francisco

29h 50m

1 stop

SAI6:40 pmSiem Reap–Angkor Intl

May 14

SAI5:20 pmSiem Reap–Angkor Intl

62h 35m

3 stops

SFO5:55 pmSan Francisco

$951

Vietnam Airlines

Apr 30

SFO10:50 pmSan Francisco

27h 35m

3 stops

SAI4:25 pmSiem Reap–Angkor Intl

May 14

SAI6:05 pmSiem Reap–Angkor Intl

61h 50m

2 stops

SFO5:55 pmSan Francisco

$1,026

Vietnam Airlines

Apr 1

SFO10:50 pmSan Francisco

29h 50m

1 stop

SAI6:40 pmSiem Reap–Angkor Intl

Apr 30

SAI6:05 pmSiem Reap–Angkor Intl

61h 50m

2 stops

SFO5:55 pmSan Francisco

$1,039

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

Mar 8

SEA9:45 amSeattle/Tacoma Intl

40h 10m

1 stop

SAI3:55 pmSiem Reap–Angkor Intl

Mar 23

SAI10:45 amSiem Reap–Angkor Intl

35h 25m

1 stop

SEA8:10 amSeattle/Tacoma Intl

$763

Singapore Airlines

Mar 5

SEA8:45 amSeattle/Tacoma Intl

40h 10m

1 stop

SAI3:55 pmSiem Reap–Angkor Intl

Mar 12

SAI10:45 amSiem Reap–Angkor Intl

35h 25m

1 stop

SEA8:10 amSeattle/Tacoma Intl

$776

Singapore Airlines

Apr 30

SFO11:00 amSan Francisco

32h 40m

1 stop

SAI9:40 amSiem Reap–Angkor Intl

May 14

SAI10:30 amSiem Reap–Angkor Intl

36h 40m

1 stop

SFO9:10 amSan Francisco

$838

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

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Thu 3/12

12:30 pm-9:00 pm

2 stops42h 30m

Siem Reap–Angkor Intl

Thu 3/19

10:00 pm-10:05 am

2 stops50h 05m

$723

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Wed 5/20

11:38 am-9:40 am

2 stops32h 02m

Siem Reap–Angkor Intl

Wed 5/27

10:30 am-8:45 am

1 stop36h 15m

$752

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Sun 3/8

9:45 am-3:55 pm

1 stop40h 10m

Siem Reap–Angkor Intl

Mon 3/23

10:45 am-8:10 am

1 stop35h 25m

$763

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Thu 3/5

8:45 am-3:55 pm

1 stop40h 10m

Siem Reap–Angkor Intl

Thu 3/12

10:45 am-8:10 am

1 stop35h 25m

$776

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 3/5

12:00 pm-9:00 pm

2 stops42h 00m

Siem Reap–Angkor Intl

Thu 3/12

10:00 pm-10:00 am

2 stops50h 00m

$787

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Thu 4/30

10:50 pm-6:40 pm

1 stop29h 50m

Siem Reap–Angkor Intl

Thu 5/14

5:20 pm-5:55 pm

3 stops62h 35m

$951

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Tue 3/3

10:35 pm-3:55 pm

1 stop26h 20m

Siem Reap–Angkor Intl

Thu 3/12

4:45 pm-10:15 pm

1 stop19h 30m

$958

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Tue 3/3

10:40 am-3:55 pm

2 stops38h 15m

Siem Reap–Angkor Intl

Thu 3/12

4:45 pm-10:15 pm

1 stop19h 30m

$970

CharlotteSiem Reap

CLT - SAI

CLTSAI

Charlotte Douglas

Fri 4/10

5:45 pm-12:15 pm

3 stops31h 30m

Siem Reap–Angkor Intl

Mon 4/27

7:25 pm-9:52 pm

3 stops37h 27m

$1,674

CharlotteSiem Reap

CLT - SAI

CLTSAI

Charlotte Douglas

Thu 4/9

5:45 pm-12:15 pm

3 stops31h 30m

Siem Reap–Angkor Intl

Sun 4/26

12:55 pm-1:11 pm

3 stops35h 16m

$1,729

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

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

You could potentially save up to 45% 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	21h 50m
Direct flights	None

The fastest flight from United States to Region of Siem Reap takes 21h 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

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 3 operators available for flights from United States to Siem Reap as of February 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 $628	Free Cancellation	Rating 8.2 1,452 reviews		Search Singapore Airlines flights
Vietnam Airlines	PriceFrom $789	Free Cancellation	Rating 7.6 225 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 $274

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 4/10. 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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Find the cheapest flights from the United States to Siem Reap

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

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Vietnam Airlines flights from United States to Region of Siem Reap

Our best Vietnam Airlines 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

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

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?

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

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

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

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

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

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

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