Latest deals
FAQs
Price Alerts

Cheap flights from Las Vegas to Siem Reap from $1,345

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Las Vegas to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:03 pm - 8:30 pmLAS  Las Vegas Harry Reid Intl-SAI Siem Reap–Angkor Intl
55h 27m2 stops San Francisco Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 8:45 pmSAI  Siem Reap–Angkor Intl-LAS Las Vegas Harry Reid Intl
38h 15m2 stops Ho Chi Minh City San Francisco
$1,446Multiple Airlines
Fri, Nov 20 - Sat, Dec 12
Multiple Airlines Logo
12:00 pm - 8:45 amLAS  Las Vegas Harry Reid Intl-SAI Siem Reap–Angkor Intl
29h 45m2 stops Vancouver Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:20 am - 1:53 pmSAI  Siem Reap–Angkor Intl-LAS Las Vegas Harry Reid Intl
41h 33m3 stops Phnom Penh Techo Intl Beijing Capital Los Angeles
$1,602Multiple Airlines
Fri, Nov 20 - Sat, Dec 12
Multiple Airlines Logo
7:45 am - 8:45 amLAS  Las Vegas Harry Reid Intl-SAI Siem Reap–Angkor Intl
34h 00m3 stops Calgary Vancouver Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:20 am - 1:53 pmSAI  Siem Reap–Angkor Intl-LAS Las Vegas Harry Reid Intl
41h 33m3 stops Phnom Penh Techo Intl Beijing Capital Los Angeles
$1,607Multiple Airlines
Fri, Nov 20 - Sat, Dec 12
Multiple Airlines Logo
11:53 am - 8:30 pmLAS  Las Vegas Harry Reid Intl-SAI Siem Reap–Angkor Intl
41h 37m2 stops San Francisco Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 11:42 pmSAI  Siem Reap–Angkor Intl-LAS Las Vegas Harry Reid Intl
41h 12m2 stops Ho Chi Minh City San Francisco
$2,794Multiple Airlines
Thu, Dec 24 - Fri, Jan 1
Qatar Airways Logo
11:17 am - 9:15 amLAS  Las Vegas Harry Reid Intl-SAI Siem Reap–Angkor Intl
30h 58m3 stops Los Angeles Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
9:55 am - 1:12 pmSAI  Siem Reap–Angkor Intl-LAS Las Vegas Harry Reid Intl
42h 17m3 stops Bangkok Suvarnabhumi Doha Hamad Intl Dallas/Fort Worth
$4,308Qatar Airways
Thu, Dec 24 - Fri, Jan 1
Multiple Airlines Logo
7:00 am - 8:05 pmLAS  Las Vegas Harry Reid Intl-SAI Siem Reap–Angkor Intl
46h 05m3 stops Los Angeles Shanghai Pu Dong Kunming Changshui
Multiple Airlines Logo
9:55 am - 6:50 pmSAI  Siem Reap–Angkor Intl-LAS Las Vegas Harry Reid Intl
47h 55m2 stops Bangkok Suvarnabhumi London Heathrow
$8,087Multiple Airlines
Thu, Dec 24 - Fri, Jan 1

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

momondo Fare Finder

 
Use the filters below to find and compare flights from Las Vegas to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Fri 11/20

10:03 pm-8:30 pm

2 stops55h 27m

Siem Reap–Angkor Intl

Sat 12/12

9:30 pm-8:45 pm

2 stops38h 15m

$1,446
Quickest round-trip

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Fri 11/20

12:00 pm-8:45 am

2 stops29h 45m

Siem Reap–Angkor Intl

Sat 12/12

11:20 am-1:53 pm

3 stops41h 33m

$1,602

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Fri 11/20

7:45 am-8:45 am

3 stops34h 00m

Siem Reap–Angkor Intl

Sat 12/12

11:20 am-1:53 pm

3 stops41h 33m

$1,607

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/24

11:53 am-8:30 pm

2 stops41h 37m

Siem Reap–Angkor Intl

Fri 1/1

9:30 pm-11:42 pm

2 stops41h 12m

$2,794

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/24

11:17 am-9:15 am

3 stops30h 58m

Siem Reap–Angkor Intl

Fri 1/1

9:55 am-1:12 pm

3 stops42h 17m

$4,308

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/24

7:00 am-8:05 pm

3 stops46h 05m

Siem Reap–Angkor Intl

Fri 1/1

9:55 am-6:50 pm

2 stops47h 55m

$8,087
Cheapest one-way
Quickest one-way

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/31

11:53 am-7:05 pm

2 stops40h 12m

$1,345

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/31

11:53 am-8:30 pm

2 stops41h 37m

$1,371

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/31

11:53 am-8:30 pm

2 stops41h 37m

$1,372

Las VegasSiem Reap

LAS Las Vegas Harry Reid Intl - SAI Siem Reap–Angkor Intl

LASSAI

Las Vegas Harry Reid Intl

Thu 12/31

11:53 am-9:10 pm

3 stops42h 17m

$3,136

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Cheap Las Vegas to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Region of Siem Reap

Best Price Found

$1,345

Fastest flight time

39h 59m

Direct flights

None
The best one-way flight to Region of Siem Reap from Las Vegas in the past 72 hours is $1,345. The best round-trip flight deal from Las Vegas to Region of Siem Reap found on momondo in the last 72 hours is $1,446.
The fastest flight from Las Vegas to Region of Siem Reap takes 39h 59m
There are no direct flights from Las Vegas to Region of Siem Reap. There are no popular flight routes from Las Vegas to Region of Siem Reap.
Search flight deals

Frequently asked questions about flying from Las Vegas to Siem Reap

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Siem Reap?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Siem Reap are refreshed on a daily basis.

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Siem Reap?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Las Vegas Harry Reid Intl Airport to Siem Reap.

  • What documentation or ID do you need to fly to Siem Reap?

    The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Las Vegas to Siem Reap

  • How do I get Price Alerts for flights from Las Vegas to Region of Siem Reap?

    Confirm your travel details to search for the latest offers for flights from Las Vegas to Region of Siem Reap. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Las Vegas to Region of Siem Reap with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Siem Reap?

Finding the right flight to Siem Reap from Las Vegas is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Siem Reap quick and easy, saving you time and money.

Can I find flights from Las Vegas to Siem Reap with flexible booking policies on momondo?

All flight searches from Las Vegas to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Las Vegas to Siem Reap?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Las Vegas to Siem Reap.

I’m not ready to book a flight from Las Vegas to Siem Reap right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Las Vegas and alert you when they change.

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 11/29
Sun 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Flights to Phnom Penh
Flights to Siem Reapfrom $666
Flights to Krong Preah Sihanoukfrom $1,239