Siem Reap

$270+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAI
May 2 — May 91
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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 April 2, 2026.

This oojo deal was found by Cheapflights users on 3/30. 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 9/1710:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Wed 10/710:30 am
SAI
-
SEA
1 stop36h 15m
Singapore Airlines
Deal found 3/30$504
This oojo deal was found by Cheapflights users on 3/31. 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.
Mon 8/2412:05 am
LAX
-
SAI
1 stop25h 05m
Singapore Airlines
Sat 8/2910:30 am
SAI
-
LAX
1 stop25h 40m
Singapore Airlines
Deal found 3/31$611
This FlightHub deal was found by Cheapflights users on 3/31. 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.
Sat 10/1710:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Sat 10/2410:30 am
SAI
-
SEA
1 stop35h 40m
Singapore Airlines
Deal found 3/31$735
This oojo deal was found by Cheapflights users on 3/29. 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 8/1411:45 am
SFO
-
SAI
1 stop37h 25m
Singapore Airlines
Sun 8/2310:30 am
SAI
-
SFO
1 stop37h 20m
Singapore Airlines
Deal found 3/29$781
This FlightHub deal was found by Cheapflights users on 3/29. 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 5/1112:30 pm
LAX
-
SAI
2 stops41h 40m
China Eastern
Wed 5/279:10 pm
SAI
-
LAX
2 stops26h 55m
China Eastern
Deal found 3/29$831
This BusinessClass deal was found by Cheapflights users on 3/31. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:30 pm
LAX
-
SAI
2 stops42h 30m
Multiple Airlines
Sun 11/86:50 pm
SAI
-
LAX
2 stops29h 15m
Multiple Airlines
Deal found 3/31$844
This FlightHub deal was found by Cheapflights users on 3/28. 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 9/1810:15 am
SEA
-
SAI
1 stop38h 55m
Singapore Airlines
Wed 10/74:00 pm
SAI
-
SEA
1 stop30h 45m
Singapore Airlines
Deal found 3/28$881
This KAYAK deal was found by Cheapflights users on 3/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Wed 10/74:00 pm
SAI
-
SEA
1 stop30h 45m
Singapore Airlines
Deal found 3/28$901
This oojo deal was found by Cheapflights users on 3/29. 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 10/2710:45 am
SAI
-
LAX
1 stop24h 10m
Singapore Airlines
Deal found 3/29$918
This oojo deal was found by Cheapflights users on 3/29. 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.
Mon 8/1011:45 am
SFO
-
SAI
1 stop37h 25m
Singapore Airlines
Sat 8/2210:30 am
SAI
-
SFO
2 stops36h 30m
Singapore Airlines
Deal found 3/29$927
This FlightHub deal was found by Cheapflights users on 3/28. 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 9/1710:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Thu 10/810:30 am
SAI
-
SEA
1 stop36h 15m
Singapore Airlines
Deal found 3/28$931
This oojo deal was found by Cheapflights users on 3/30. 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
Multiple Airlines
Tue 10/274:45 pm
SAI
-
LAX
2 stops33h 51m
Multiple Airlines
Deal found 3/30$941

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 April 2, 2026.

Round-trip from

$504
(oojo)

One-way from

$270
(FlightHub)
From USA to Siem Reap–Angkor Intl
One-way flight from USA to Siem Reap–Angkor Intl

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 April 2, 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

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Fri 8/14

11:45 am-3:10 pm

1 stop37h 25m

Siem Reap–Angkor Intl

Sun 8/23

10:30 am-9:50 am

1 stop37h 20m

$781

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 5/6

1:00 pm-9:05 am

2 stops30h 05m

Siem Reap–Angkor Intl

Thu 6/11

12:55 pm-11:15 pm

2 stops24h 20m

$1,002

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sat 4/18

1:00 pm-2:20 pm

2 stops37h 20m

Siem Reap–Angkor Intl

Sat 4/25

3:10 pm-9:15 am

2 stops30h 05m

$1,046

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Tue 4/28

11:00 pm-9:30 pm

2 stops35h 30m

Siem Reap–Angkor Intl

Tue 5/5

11:50 pm-8:50 am

2 stops44h 00m

$1,059

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Sun 4/12

11:20 am-12:20 pm

2 stops38h 00m

Siem Reap–Angkor Intl

Thu 4/30

11:50 pm-2:25 pm

2 stops49h 35m

$1,060

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Wed 9/9

12:30 am-6:45 pm

2 stops30h 15m

Siem Reap–Angkor Intl

Tue 9/15

9:40 am-8:45 pm

2 stops23h 05m

$1,091

CharlotteSiem Reap

CLT - SAI

CLTSAI

Charlotte Douglas

Mon 4/27

2:00 pm-12:20 pm

2 stops35h 20m

Siem Reap–Angkor Intl

Mon 5/4

3:10 pm-10:45 am

2 stops54h 35m

$1,093

ChicagoSiem Reap

ORD - SAI

ORDSAI

Chicago O'Hare Intl

Sun 4/12

1:00 pm-5:50 pm

2 stops64h 50m

Siem Reap–Angkor Intl

Sat 5/9

1:05 pm-8:35 am

2 stops31h 30m

$1,109

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Wed 4/15

10:20 pm-12:20 pm

3 stops51h 00m

Siem Reap–Angkor Intl

Sun 4/26

1:05 pm-2:25 pm

2 stops36h 20m

$1,110

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Sun 4/12

11:20 am-12:20 pm

2 stops38h 00m

Siem Reap–Angkor Intl

Sun 4/26

1:05 pm-2:25 pm

2 stops36h 20m

$1,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

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 $503). Flying from USA to Siem Reap in July is currently the most expensive (average of $1,142). 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 April 2, 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.

Overall

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Overall

8.2

Crew

8.6

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 $1,059, Singapore Airlines can have you in Siem Reap from USA in 35h 30m. The distance between USA and Siem Reap is about 8696 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 $248. 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 $503). Flying from USA to Siem Reap in July is currently the most expensive (average of $1,142). 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 April 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$523Average$858FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$647Average$946FlexibilityNo cancel feeOn-time81%

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