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Cheap flights from Las Vegas to Siem Reap from $690

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Siem Reap departing on 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 pm - 12:15 pm
LAS
-
SAI
28h 15m
3 stops
Multiple Airlines Logo
7:25 pm - 5:01 pm
SAI
-
LAS
35h 36m
2 stops
$1,352Multiple Airlines
א', יוני 14 - ג', יולי 14
Multiple Airlines Logo
6:00 pm - 12:15 pm
LAS
-
SAI
28h 15m
3 stops
Multiple Airlines Logo
7:25 pm - 5:01 pm
SAI
-
LAS
35h 36m
2 stops
$1,353Multiple Airlines
א', יוני 14 - ג', יולי 14
Multiple Airlines Logo
4:45 pm - 12:40 pm
LAS
-
SAI
28h 55m
2 stops
Multiple Airlines Logo
7:25 pm - 3:59 pm
SAI
-
LAS
34h 34m
2 stops
$1,427Multiple Airlines
א', מרץ 1 - א', מרץ 8
Singapore Airlines Logo
6:00 am - 9:50 am
LAS
-
SAI
36h 50m
2 stops
Singapore Airlines Logo
4:45 pm - 7:27 pm
SAI
-
LAS
41h 42m
3 stops
$1,679Singapore Airlines
א', מרץ 1 - א', מרץ 8
Multiple Airlines Logo
8:30 am - 11:10 am
LAS
-
SAI
36h 40m
3 stops
Multiple Airlines Logo
3:15 pm - 8:20 pm
SAI
-
LAS
43h 05m
3 stops
$1,706Multiple Airlines
א', יוני 14 - ג', יולי 14
Multiple Airlines Logo
8:30 am - 2:30 pm
LAS
-
SAI
40h 00m
3 stops
Multiple Airlines Logo
11:55 am - 5:18 pm
SAI
-
LAS
43h 23m
3 stops
$1,748Multiple Airlines
א', יוני 14 - ג', יולי 14
Singapore Airlines Logo
10:46 am - 9:40 am
LAS
-
SAI
32h 54m
2 stops
Singapore Airlines Logo
10:30 am - 9:43 am
SAI
-
LAS
37h 13m
2 stops
$2,106Singapore Airlines
א', יוני 14 - ג', יולי 14

Singapore Airlines flights from Las Vegas to Region of Siem Reap

Our best Singapore Airlines deals on Las Vegas to Region of Siem Reap flight tickets
Singapore Airlines
Mar 1
LAS6:00 amLas Vegas Harry Reid Intl
36h 50m
2 stops
SAI9:50 amSiem Reap–Angkor Intl
Mar 8
SAI4:45 pmSiem Reap–Angkor Intl
41h 42m
3 stops
LAS7:27 pmLas Vegas Harry Reid Intl
$1,679
Singapore Airlines
Jun 14
LAS10:46 amLas Vegas Harry Reid Intl
32h 54m
2 stops
SAI9:40 amSiem Reap–Angkor Intl
Jul 14
SAI10:30 amSiem Reap–Angkor Intl
37h 13m
2 stops
LAS9:43 amLas Vegas Harry Reid Intl
$2,106

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas to Region of 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, momondo users made 832,500 searches. Data last updated פברואר 4, 2026.
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

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 6/14

6:00 pm-12:15 pm

3 stops28h 15m

Siem Reap–Angkor Intl

ג' 7/14

7:25 pm-5:01 pm

2 stops35h 36m

$1,352

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 6/14

6:00 pm-12:15 pm

3 stops28h 15m

Siem Reap–Angkor Intl

ג' 7/14

7:25 pm-5:01 pm

2 stops35h 36m

$1,353

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 3/1

4:45 pm-12:40 pm

2 stops28h 55m

Siem Reap–Angkor Intl

א' 3/8

7:25 pm-3:59 pm

2 stops34h 34m

$1,427

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 3/1

6:00 am-9:50 am

2 stops36h 50m

Siem Reap–Angkor Intl

א' 3/8

4:45 pm-7:27 pm

3 stops41h 42m

$1,679

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 6/14

8:30 am-11:10 am

3 stops36h 40m

Siem Reap–Angkor Intl

ג' 7/14

3:15 pm-8:20 pm

3 stops43h 05m

$1,706

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 6/14

8:30 am-2:30 pm

3 stops40h 00m

Siem Reap–Angkor Intl

ג' 7/14

11:55 am-5:18 pm

3 stops43h 23m

$1,748

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

א' 6/14

10:46 am-9:40 am

2 stops32h 54m

Siem Reap–Angkor Intl

ג' 7/14

10:30 am-9:43 am

2 stops37h 13m

$2,106

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

ב' 6/1

1:53 pm-6:05 pm

3 stops38h 12m

$690

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

ב' 6/1

6:45 am-9:00 am

2 stops36h 15m

$743

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

ה' 3/12

7:00 am-5:30 pm

2 stops44h 30m

$2,947

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

Fastest flight time

28h 15m

Direct flights

None
The fastest flight from Las Vegas to Region of Siem Reap takes 28h 15m
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

  • 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.

  • 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.

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