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Siem Reap

$1,352+ Cheap flights from Las Vegas (LAS) to Siem Reap

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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — SAI
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
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 7, 2026.

This Gotogate deal was found by Cheapflights users on 2/3. 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.
Sun 6/146:00 pm
LAS
-
SAI
3 stops28h 15m
Multiple Airlines
Tue 7/147:25 pm
SAI
-
LAS
2 stops35h 36m
Multiple Airlines
Deal found 2/3$1,352
This United Airlines deal was found by Cheapflights users on 2/5. 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 stops41h 55m
United Airlines
Deal found 2/5$1,517
This FlightHub deal was found by Cheapflights users on 2/5. 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 2/5$1,683
This Justfly.com deal was found by Cheapflights users on 2/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:46 am
LAS
-
SAI
2 stops32h 54m
Singapore Airlines
Tue 7/1410:30 am
SAI
-
LAS
2 stops37h 13m
Singapore Airlines
Deal found 2/3$2,106
This BusinessClass deal was found by Cheapflights users on 2/4. 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.
Mon 8/317:00 am
LAS
-
SAI
2 stops36h 40m
Multiple Airlines
Sat 9/510:30 am
SAI
-
LAS
2 stops45h 22m
Multiple Airlines
Deal found 2/4$4,512
This SmartFares deal was found by Cheapflights users on 2/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:21 pm
LAS
-
SAI
2 stops50h 49m
Multiple Airlines
Sat 9/510:30 am
SAI
-
LAS
2 stops45h 22m
Multiple Airlines
Deal found 2/5$5,406
This Singapore Airlines deal was found by Cheapflights users on 2/4. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
LAS
-
SAI
3 stops37h 40m
Singapore Airlines
Sat 9/510:30 am
SAI
-
LAS
3 stops51h 31m
Singapore Airlines
Deal found 2/4$6,194

Find flight deals from Las Vegas to Siem Reap

Keep the following information in mind while searching for Las Vegas to Siem Reap flight deals. Data was last updated February 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,352
(Gotogate)
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
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 7, 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 6/14

6:00 pm-12:15 pm

3 stops28h 15m

Siem Reap–Angkor Intl

Tue 7/14

7:25 pm-5:01 pm

2 stops35h 36m

$1,352

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-1:40 pm

2 stops41h 55m

$1,517

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

Sun 6/14

10:46 am-9:40 am

2 stops32h 54m

Siem Reap–Angkor Intl

Tue 7/14

10:30 am-9:43 am

2 stops37h 13m

$2,106

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to Siem Reap
No data available for this route at this time. Please check back soon.

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.

  • What airport do you fly from for flights from Las Vegas to Siem Reap?

    Located just 6.2 mi from the city center, Las Vegas Harry Reid Intl (LAS) is the airport most travelers will use when flying to Siem Reap from Las Vegas.

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

    There are many flights that can get you from Las Vegas to Region of Siem Reap in 36h 50m. Fly via United Airlines or Singapore Airlines to get the fastest option. There are 8157 mi between Las Vegas and Region of Siem Reap. This flight may include one or multiple stops.

  • 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.

See more FAQs

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