Siem Reap

$451+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SAI
Jul 16 — Jul 231
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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 June 16, 2026.

This oojo deal was found by Cheapflights users on 6/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:30 pm
LAX
-
SAI
3 stops41h 40m
China Eastern
Wed 9/169:10 pm
SAI
-
LAX
2 stops26h 55m
China Eastern
Deal found 6/14$705
This oojo deal was found by Cheapflights users on 6/13. 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.
Sun 11/1511:30 am
LAX
-
SAI
3 stops42h 30m
China Eastern
Tue 11/2410:00 pm
SAI
-
LAX
3 stops50h 05m
China Eastern
Deal found 6/13$753
This oojo deal was found by Cheapflights users on 6/16. 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.
Sun 8/1612:30 pm
LAX
-
SAI
3 stops65h 40m
China Eastern
Wed 8/269:10 pm
SAI
-
LAX
2 stops26h 55m
China Eastern
Deal found 6/16$756
This oojo deal was found by Cheapflights users on 6/12. 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.
Sat 10/1010:15 am
SEA
-
SAI
1 stop33h 25m
Singapore Airlines
Fri 10/164:00 pm
SAI
-
SEA
1 stop30h 45m
Singapore Airlines
Deal found 6/12$765
This China Eastern deal was found by Cheapflights users on 6/13. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:30 pm
LAX
-
SAI
3 stops65h 40m
China Eastern
Wed 9/169:10 pm
SAI
-
LAX
2 stops26h 55m
China Eastern
Deal found 6/13$768
This FlightHub deal was found by Cheapflights users on 6/15. 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 12/512:00 pm
SFO
-
SAI
2 stops66h 00m
China Eastern
Sat 12/1210:00 pm
SAI
-
SFO
2 stops50h 00m
China Eastern
Deal found 6/15$825
This oojo deal was found by Cheapflights users on 6/13. 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.
Sun 9/1311:45 am
SFO
-
SAI
1 stop31h 55m
Singapore Airlines
Sun 9/2010:30 am
SAI
-
SFO
1 stop37h 20m
Singapore Airlines
Deal found 6/13$842
This oojo deal was found by Cheapflights users on 6/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:30 pm
LAX
-
SAI
3 stops65h 40m
Multiple Airlines
Mon 9/73:00 pm
SAI
-
LAX
2 stops33h 05m
Multiple Airlines
Deal found 6/14$849
This oojo deal was found by Cheapflights users on 6/13. 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.
Wed 11/48:45 am
SEA
-
SAI
1 stop40h 10m
Singapore Airlines
Sun 11/1510:45 am
SAI
-
SEA
1 stop59h 25m
Singapore Airlines
Deal found 6/13$862
This China Eastern deal was found by Cheapflights users on 6/13. 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 China Eastern 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
Wed 9/169:10 pm
SAI
-
LAX
2 stops26h 55m
China Eastern
Deal found 6/13$883
This oojo deal was found by Cheapflights users on 6/16. 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.
Tue 11/2411:30 am
LAX
-
SAI
3 stops42h 30m
Multiple Airlines
Sun 12/67:10 pm
SAI
-
LAX
2 stops28h 55m
Multiple Airlines
Deal found 6/16$884
This oojo deal was found by Cheapflights users on 6/15. 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 9/1811:45 am
SFO
-
SAI
1 stop37h 25m
Singapore Airlines
Wed 9/3010:30 am
SAI
-
SFO
1 stop37h 20m
Singapore Airlines
Deal found 6/15$885

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 June 16, 2026.

Round-trip from

$705
(oojo)

One-way from

$451
(oojo)

Popular in

June

Cheapest in

November

Average price

$2,233
From USA to Siem Reap–Angkor Intl
One-way flight from USA to Siem Reap–Angkor Intl
Highest demand for flights based on searches. 16% potential increase in price ($262 potential increase over avg. RT price).
Cheapest flight prices on average. 7% potential price decrease ($98 potential savings vs. average RT price).
Average for round-trip flights in June 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 June 16, 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

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

$765

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Sun 9/6

12:30 pm-8:10 pm

3 stops65h 40m

Siem Reap–Angkor Intl

Wed 9/16

9:10 pm-10:05 am

2 stops26h 55m

$768

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Fri 10/2

11:45 am-3:10 pm

1 stop37h 25m

Siem Reap–Angkor Intl

Wed 10/14

10:30 am-9:50 am

1 stop37h 20m

$842

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Fri 10/2

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

$962

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Fri 11/27

9:40 am-3:55 pm

1 stop39h 15m

Siem Reap–Angkor Intl

Tue 12/22

4:45 pm-7:50 am

1 stop30h 05m

$971

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Fri 11/27

10:55 pm-6:45 pm

2 stops28h 50m

Siem Reap–Angkor Intl

Tue 12/22

1:20 pm-9:00 pm

2 stops22h 40m

$1,046

SeattleSiem Reap

SEA - SAI

SEASAI

Seattle/Tacoma Intl

Mon 11/16

2:30 pm-3:55 pm

2 stops34h 25m

Siem Reap–Angkor Intl

Mon 11/30

10:45 am-7:10 am

1 stop35h 25m

$1,060

San FranciscoSiem Reap

SFO - SAI

SFOSAI

San Francisco

Wed 11/18

9:10 pm-5:40 pm

1 stop29h 30m

Siem Reap–Angkor Intl

Sat 11/28

9:30 pm-5:00 pm

1 stop34h 30m

$1,081

New YorkSiem Reap

JFK - SAI

JFKSAI

New York John F Kennedy Intl

Sun 10/11

11:00 pm-9:30 pm

2 stops35h 30m

Siem Reap–Angkor Intl

Wed 10/21

12:55 pm-6:55 pm

3 stops41h 00m

$1,090

Los AngelesSiem Reap

LAX - SAI

LAXSAI

Los Angeles

Thu 10/1

12:35 am-6:55 pm

2 stops28h 20m

Siem Reap–Angkor Intl

Tue 10/27

1:20 pm-8:00 pm

2 stops20h 40m

$1,093

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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 July is currently the most expensive (average of $1,080). 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 June 16, 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.

Entertainment

8.1

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

Entertainment

8.1

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

Entertainment

8.1

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

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 $1,081, 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 July is currently the most expensive (average of $1,080). 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 June 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$511Average$831FlexibilityNo cancel feeOn-time81%
Vietnam AirlinesCheapest$647Average$1,222FlexibilityNo cancel feeOn-time81%

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