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Cheap flights from Las Vegas to Siem Reap from $1,325

This is the cheapest round-trip 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 9/16. 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
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.
Singapore Airlines Logo
2:17 pm - 3:10 pm-
34h 53m
Singapore Airlines Logo
10:30 am - 9:39 am-
37h 09m
$1,325Singapore Airlines
Wed, Sep 16 - Fri, Sep 25
Multiple Airlines Logo
7:04 am - 9:40 am-
36h 36m
Multiple Airlines Logo
10:30 am - 8:32 pm-
48h 02m
$1,326Multiple Airlines
Mon, Sep 7 - Tue, Sep 15
Multiple Airlines Logo
6:00 am - 9:40 am-
37h 40m
Multiple Airlines Logo
10:30 am - 10:25 am-
37h 55m
$1,376Multiple Airlines
Thu, Sep 17 - Fri, Sep 25
Multiple Airlines Logo
8:02 pm - 9:40 am-
23h 38m
Multiple Airlines Logo
7:10 pm - 3:58 pm-
34h 48m
$1,391Multiple Airlines
Mon, Sep 7 - Tue, Sep 15
Multiple Airlines Logo
7:04 am - 5:10 pm-
44h 06m
Multiple Airlines Logo
12:55 pm - 11:57 pm-
25h 02m
$1,433Multiple Airlines
Wed, Sep 16 - Fri, Sep 25
ANA Logo
7:04 am - 5:10 pm-
44h 06m
ANA Logo
7:10 pm - 2:10 pm-
33h 00m
$1,438ANA
Wed, Sep 16 - Fri, Sep 25
Multiple Airlines Logo
6:40 pm - 12:15 pm-
27h 35m
Multiple Airlines Logo
7:10 pm - 2:10 pm-
33h 00m
$1,442Multiple Airlines
Thu, Sep 17 - Fri, Sep 25
ANA Logo
8:04 am - 5:10 pm-
43h 06m
ANA Logo
7:10 pm - 3:58 pm-
34h 48m
$1,462ANA
Mon, Sep 7 - Tue, Sep 15
Multiple Airlines Logo
4:35 pm - 12:15 pm-
29h 40m
Multiple Airlines Logo
7:10 pm - 2:10 pm-
33h 00m
$1,491Multiple Airlines
Fri, Sep 18 - Sat, Sep 26
Multiple Airlines Logo
6:40 pm - 6:55 pm-
34h 15m
Multiple Airlines Logo
12:55 pm - 9:39 am-
34h 44m
$1,492Multiple Airlines
Fri, Sep 18 - Sat, Sep 26

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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
Sep 16
LAS2:17 pmLas Vegas Harry Reid Intl
34h 53m
2 stops
SAI3:10 pmSiem Reap–Angkor Intl
Sep 25
SAI10:30 amSiem Reap–Angkor Intl
37h 09m
2 stops
LAS9:39 amLas Vegas Harry Reid Intl
$1,325
Singapore Airlines
Sep 19
LAS2:09 pmLas Vegas Harry Reid Intl
53h 31m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Sep 26
SAI10:30 amSiem Reap–Angkor Intl
60h 58m
3 stops
LAS9:28 amLas Vegas Harry Reid Intl
$2,142
Singapore Airlines
Sep 19
LAS2:09 pmLas Vegas Harry Reid Intl
53h 31m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Sep 26
SAI10:30 amSiem Reap–Angkor Intl
37h 09m
2 stops
LAS9:39 amLas Vegas Harry Reid Intl
$2,206

ANA flights from Las Vegas to Region of Siem Reap

Our best ANA deals on Las Vegas to Region of Siem Reap flight tickets
ANA
Sep 16
LAS7:04 amLas Vegas Harry Reid Intl
44h 06m
3 stops
SAI5:10 pmSiem Reap–Angkor Intl
Sep 25
SAI7:10 pmSiem Reap–Angkor Intl
33h 00m
3 stops
LAS2:10 pmLas Vegas Harry Reid Intl
$1,438
ANA
Sep 7
LAS8:04 amLas Vegas Harry Reid Intl
43h 06m
3 stops
SAI5:10 pmSiem Reap–Angkor Intl
Sep 15
SAI7:10 pmSiem Reap–Angkor Intl
34h 48m
3 stops
LAS3:58 pmLas Vegas Harry Reid Intl
$1,462

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 August 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

Cheapest round-trip

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Wed 9/16

2:17 pm-3:10 pm

2 stops34h 53m

Siem Reap–Angkor Intl

Fri 9/25

10:30 am-9:39 am

2 stops37h 09m

$1,325

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Mon 9/7

7:04 am-9:40 am

2 stops36h 36m

Siem Reap–Angkor Intl

Tue 9/15

10:30 am-8:32 pm

2 stops48h 02m

$1,326

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Thu 9/17

6:00 am-9:40 am

2 stops37h 40m

Siem Reap–Angkor Intl

Fri 9/25

10:30 am-10:25 am

2 stops37h 55m

$1,376
Quickest round-trip

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Mon 9/7

8:02 pm-9:40 am

2 stops23h 38m

Siem Reap–Angkor Intl

Tue 9/15

7:10 pm-3:58 pm

3 stops34h 48m

$1,391

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Wed 9/16

7:04 am-5:10 pm

3 stops44h 06m

Siem Reap–Angkor Intl

Fri 9/25

12:55 pm-11:57 pm

2 stops25h 02m

$1,433

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Wed 9/16

7:04 am-5:10 pm

3 stops44h 06m

Siem Reap–Angkor Intl

Fri 9/25

7:10 pm-2:10 pm

3 stops33h 00m

$1,438

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Thu 9/17

6:40 pm-12:15 pm

2 stops27h 35m

Siem Reap–Angkor Intl

Fri 9/25

7:10 pm-2:10 pm

3 stops33h 00m

$1,442

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Mon 9/7

8:04 am-5:10 pm

3 stops43h 06m

Siem Reap–Angkor Intl

Tue 9/15

7:10 pm-3:58 pm

3 stops34h 48m

$1,462

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Fri 9/18

4:35 pm-12:15 pm

2 stops29h 40m

Siem Reap–Angkor Intl

Sat 9/26

7:10 pm-2:10 pm

3 stops33h 00m

$1,491

Las VegasSiem Reap

LAS - SAI

LASSAI

Las Vegas Harry Reid Intl

Fri 9/18

6:40 pm-6:55 pm

2 stops34h 15m

Siem Reap–Angkor Intl

Sat 9/26

12:55 pm-9:39 am

2 stops34h 44m

$1,492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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

32h 58m

Direct flights

None
The fastest flight from Las Vegas to Region of Siem Reap takes 32h 58m
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.
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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

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