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Siem Reap

$1,090+ Cheap flights from Las Vegas (LAS) to Siem Reap, Cambodia (SAI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — SAI
Mar 11 — Mar 181
Wed 3/11
Wed 3/18
1 adult, Economy
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Cheap flight deals from Las Vegas to Siem Reap

Cheapest flights from Las Vegas to Siem Reap
Explore the most affordable flight options available from Las Vegas to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.

This United Airlines deal was found by Cheapflights users on 2/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:45 am
LAS
-
SAI
2 stops41h 10m
United Airlines
Sun 3/810:45 am
SAI
-
LAS
2 stops46h 10m
United Airlines
Deal found 2/8$1,090
This FlightHub deal was found by Cheapflights users on 2/8. 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.
Sun 3/16:00 am
LAS
-
SAI
2 stops36h 50m
Singapore Airlines
Sun 3/810:45 am
SAI
-
LAS
3 stops47h 42m
Singapore Airlines
Deal found 2/8$1,683
This BusinessClass deal was found by Cheapflights users on 2/8. 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.
Wed 4/810:39 am
LAS
-
SAI
2 stops38h 31m
Singapore Airlines
Tue 4/2110:30 am
SAI
-
LAS
2 stops37h 07m
Singapore Airlines
Deal found 2/8$6,888

Find flight deals from Las Vegas to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,090
(United Airlines)
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Siem Reap–Angkor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Siem Reap–Angkor Intl flights.
Search Deals
From Las Vegas Harry Reid Intl to Siem Reap–Angkor Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas 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 February 9, 2026.
Use the filters below to find and compare flights from Las Vegas to Siem Reap that are best for you.

Fly from

Las Vegas

Fly to

Siem Reap

Route

Depart

Return

Price

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Sun 3/1

7:45 am-3:55 pm

2 stops41h 10m

Siem Reap–Angkor Intl

Sun 3/8

10:45 am-5:55 pm

2 stops46h 10m

$1,090

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Sun 3/1

6:00 am-9:50 am

2 stops36h 50m

Siem Reap–Angkor Intl

Sun 3/8

10:45 am-7:27 pm

3 stops47h 42m

$1,683

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Wed 4/8

10:39 am-3:10 pm

2 stops38h 31m

Siem Reap–Angkor Intl

Tue 4/21

10:30 am-9:37 am

2 stops37h 07m

$6,888

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Compare providers for flights from Las Vegas to Siem Reap

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Siem Reap in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Siem Reap flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Siem Reap flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Siem Reap flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Siem Reap flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Siem Reap flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Las Vegas to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Las Vegas 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.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Las Vegas to Siem Reap?

    Airlines like United Airlines and Singapore Airlines fly from Las Vegas to Siem Reap in about 36h 50m. The time it takes to get you to your destination can typically vary by up to 4h 20m. Las Vegas and Siem Reap are separated by a distance of 8157 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas 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.

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