Siem Reap

$460+ Cheap flights from the United States to Siem Reap, Cambodia (SAI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAI
Jun 18 — Jun 251
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Cheap flight deals from USA to Siem Reap

Cheapest flights from USA to Siem Reap
Explore the most affordable flight options available from USA to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 19, 2026.

This FlightHub deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Sat 10/3110:45 am
SAI
-
SEA
1 stop35h 25m
Singapore Airlines
Deal found 5/18$697
This FlightHub deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:30 pm
LAX
-
SAI
2 stops41h 40m
China Eastern
Tue 10/2710:00 pm
SAI
-
LAX
3 stops50h 05m
China Eastern
Deal found 5/16$715
This oojo deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:45 am
SFO
-
SAI
1 stop31h 55m
Singapore Airlines
Wed 10/284:45 pm
SAI
-
SFO
1 stop30h 05m
Singapore Airlines
Deal found 5/17$794
This FlightHub deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Mon 10/1210:30 am
SAI
-
SEA
1 stop36h 15m
Singapore Airlines
Deal found 5/16$797
This oojo deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:45 am
SFO
-
SAI
1 stop31h 55m
Singapore Airlines
Tue 10/2010:30 am
SAI
-
SFO
1 stop37h 20m
Singapore Airlines
Deal found 5/18$821
This oojo deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:40 am
SFO
-
SAI
1 stop33h 10m
Singapore Airlines
Wed 11/1810:45 am
SAI
-
SFO
1 stop36h 05m
Singapore Airlines
Deal found 5/16$873
This FlightHub deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:45 am
SEA
-
SAI
1 stop40h 10m
Singapore Airlines
Sat 12/1210:45 am
SAI
-
SEA
1 stop35h 25m
Singapore Airlines
Deal found 5/17$896
This Ovago deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:30 pm
LAX
-
SAI
2 stops32h 25m
Multiple Airlines
Thu 11/1210:00 pm
SAI
-
LAX
2 stops50h 05m
Multiple Airlines
Deal found 5/14$906
This Ovago deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:30 am
LAX
-
SAI
3 stops42h 30m
Multiple Airlines
Sun 12/62:50 pm
SAI
-
LAX
2 stops33h 15m
Multiple Airlines
Deal found 5/17$907
This oojo deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:45 am
SFO
-
SAI
1 stop31h 55m
Singapore Airlines
Sat 9/2610:30 am
SAI
-
SFO
1 stop37h 20m
Singapore Airlines
Deal found 5/16$924
This Gotogate deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:30 pm
LAX
-
SAI
2 stops32h 45m
Multiple Airlines
Wed 8/269:10 pm
SAI
-
LAX
2 stops26h 55m
Multiple Airlines
Deal found 5/18$941
This oojo deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm
LAX
-
SAI
1 stop25h 40m
Singapore Airlines
Tue 10/274:45 pm
SAI
-
LAX
1 stop40h 25m
Singapore Airlines
Deal found 5/16$961

Find flight deals from USA to Siem Reap

Keep the following information in mind while searching for USA to Siem Reap flight deals. Data was last updated May 19, 2026.

Round-trip from

$697
(FlightHub)

One-way from

$460
(Justfly.com)

Popular in

June

Cheapest in

March

Average price

$1,373
From USA to Siem Reap–Angkor Intl
One-way flight from USA to Siem Reap–Angkor Intl
Highest demand for flights based on searches. 20% potential increase in price ($343 potential increase over avg. RT price).
Cheapest flight prices on average. 8% potential price decrease ($102 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 19, 2026.
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 Los Angeles

Wed 10/28

12:30 pm-10:55 am

2 stops32h 25m

Siem Reap–Angkor Intl

Thu 11/12

10:00 pm-9:05 am

2 stops50h 05m

$906

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Fri 9/4

11:45 am-9:40 am

1 stop31h 55m

Siem Reap–Angkor Intl

Sat 9/26

10:30 am-9:50 am

1 stop37h 20m

$924

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles Los Angeles

Tue 8/11

12:30 pm-11:15 am

2 stops32h 45m

Siem Reap–Angkor Intl

Wed 8/26

9:10 pm-10:05 am

2 stops26h 55m

$941

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles Los Angeles

Fri 10/2

9:15 pm-9:40 am

1 stop22h 25m

Siem Reap–Angkor Intl

Tue 10/27

4:45 pm-7:10 pm

1 stop40h 25m

$961

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles Los Angeles

Mon 9/7

11:30 pm-3:10 pm

1 stop25h 40m

Siem Reap–Angkor Intl

Tue 10/27

10:45 am-8:55 pm

1 stop24h 10m

$996

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles Los Angeles

Thu 8/27

12:30 pm-11:15 am

2 stops32h 45m

Siem Reap–Angkor Intl

Thu 9/10

7:20 pm-10:05 am

2 stops28h 45m

$1,016
Quickest round-trip

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles Los Angeles

Wed 8/19

1:25 am-6:55 pm

2 stops27h 30m

Siem Reap–Angkor Intl

Thu 9/3

9:40 am-4:55 pm

2 stops21h 15m

$1,017

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Tue 9/1

4:00 pm-9:00 am

2 stops29h 00m

Siem Reap–Angkor Intl

Sat 9/19

12:55 pm-1:55 pm

2 stops37h 00m

$1,024

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 9/16

12:20 am-6:55 pm

2 stops28h 35m

Siem Reap–Angkor Intl

Tue 10/20

12:55 pm-10:40 pm

2 stops23h 45m

$1,027

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Thu 10/1

10:15 am-9:40 am

1 stop33h 25m

Siem Reap–Angkor Intl

Sat 10/31

4:45 pm-4:25 pm

2 stops37h 40m

$1,087

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from USA to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from USA with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Siem Reap

What is the cheapest month to book a flight from USA to Siem Reap?

Currently, April is the cheapest month in which you can book a flight from USA to Siem Reap (average of $157). Flying from USA to Siem Reap in December is currently the most expensive (average of $1,442). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

The best insider tips for theUnited States to Siem Reap flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Siem Reap trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on Qatar Airways

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Gabriel Leigh

Gabriel Leigh

Expert on Singapore Airlines

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Ramsey Qubein

Ramsey Qubein

Expert on Vietnam Airlines

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated May 19, 2026.
Get a feel of what it's like to fly with Singapore Airlines and Vietnam Airlines from the United States to Siem Reap by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Juliet,Oct 2025

PUS - SIN

Very kind staff to arrange my luggage and really appreciate all help.

Related info for your journey

Find useful and relevant information for your journey from USA to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Siem Reap from United States?

    If you book a flight to Siem Reap from United States, you will be flying to Siem Reap–Angkor Intl, which is the city’s only airport. Siem Reap–Angkor Intl (SAI) is located 24.7 mi from the center of Siem Reap.

  • How long is the flight from USA to Siem Reap?

    For as low as $1,097, Singapore Airlines can have you in Siem Reap from USA in 29h 30m. The distance between USA and Siem Reap is about 7791 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from USA to Siem Reap one-way?

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $270. Users have also found prices from $319 and $512 on Vietnam Airlines and United Airlines, respectively.

  • What are the most popular routes from USA to Siem Reap?

  • Can I find deals for flights from USA to Siem Reap that include hotel bookings?

    Yes. In addition to deals on USA to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Siem Reap.

  • Can I find deals for business class flights from USA to Siem Reap?

    Yes. Cheapflights offers flight deals from USA to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from USA to Siem Reap?

    Currently, April is the cheapest month in which you can book a flight from USA to Siem Reap (average of $157). Flying from USA to Siem Reap in December is currently the most expensive (average of $1,442). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from USA to Siem Reap

Discover the top 2 airlines that operate flights from USA to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$523Average$834FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$647Average$1,222FlexibilityNo cancel feeOn-time81%

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