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Ko Samui

$1,637+ Cheap flights from Las Vegas (LAS) to Ko Samui (USM)

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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — USM
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Las Vegas to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Ko Samui (USM). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,637
(oojo)
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Ko Samui flights.
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From Las Vegas Harry Reid Intl to Ko Samui
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Find flight deals from Las Vegas to Ko Samui

Cheapest flights from Las Vegas to Ko Samui
Explore the most affordable flight options available from Las Vegas to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This oojo deal was found by Cheapflights users on 10/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/225:45 pmLAS - USM
2 stops34h 50mCathay Pacific
Sat 11/2911:40 amUSM - LAS
2 stops27h 36mCathay Pacific
Deal found 10/26$1,637
This Cathay Pacific deal was found by Cheapflights users on 10/25. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:59 pmLAS - USM
2 stops33h 36mCathay Pacific
Mon 11/311:40 amUSM - LAS
2 stops43h 29mCathay Pacific
Deal found 10/25$2,128
This British Airways deal was found by Cheapflights users on 10/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:55 pmLAS - USM
2 stops54h 20mBritish Airways
Wed 1/71:25 pmUSM - LAS
2 stops44h 25mBritish Airways
Deal found 10/27$2,587
This Singapore Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 10/306:00 amLAS - USM
3 stops49h 05mSingapore Airlines
Mon 11/31:25 pmUSM - LAS
2 stops50h 00mSingapore Airlines
Deal found 10/27$3,629
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/229:11 pmLAS - USM
2 stops32h 54mSingapore Airlines
Sat 11/294:25 pmUSM - LAS
3 stops48h 01mSingapore Airlines
Deal found 10/26$3,658
This Qatar Airways deal was found by Cheapflights users on 10/26. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2212:00 pmLAS - USM
3 stops31h 35mQatar Airways
Sat 11/295:05 pmUSM - LAS
3 stops34h 01mQatar Airways
Deal found 10/26$3,677
This Qatar Airways deal was found by Cheapflights users on 10/27. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:00 pmLAS - USM
3 stops31h 35mQatar Airways
Wed 1/77:10 pmUSM - LAS
3 stops36h 20mQatar Airways
Deal found 10/27$4,025
This Gurufare deal was found by Cheapflights users on 10/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:25 amLAS - USM
3 stops44h 50mSingapore Airlines
Wed 1/71:25 pmUSM - LAS
2 stops25h 34mSingapore Airlines
Deal found 10/27$4,494
This business-class.com deal was found by Cheapflights users on 10/26. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:01 amLAS - USM
3 stops30h 29mMultiple Airlines
Tue 12/168:20 pmUSM - LAS
3 stops36h 51mMultiple Airlines
Deal found 10/26$5,051

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Ko Samui 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 October 28, 2025.
Use the filters below to find and compare flights from Las Vegas to Ko Samui that are best for you.

Fly from

Las Vegas

Fly to

Ko Samui

Route

Depart

Return

Price

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sat 11/22

9:11 pm-9:05 pm

2 stops32h 54m

Ko Samui

Sat 11/29

4:25 pm-1:26 am

3 stops48h 01m

$3,658

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sat 11/22

12:00 pm-10:35 am

3 stops31h 35m

Ko Samui

Sat 11/29

5:05 pm-12:06 pm

3 stops34h 01m

$3,677

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sun 12/14

12:00 pm-10:35 am

3 stops31h 35m

Ko Samui

Wed 1/7

7:10 pm-4:30 pm

3 stops36h 20m

$4,025

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sun 12/14

6:25 am-6:15 pm

3 stops44h 50m

Ko Samui

Wed 1/7

1:25 pm-11:59 pm

2 stops25h 34m

$4,494

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Tue 12/2

10:01 am-7:30 am

3 stops30h 29m

Ko Samui

Tue 12/16

8:20 pm-6:11 pm

3 stops36h 51m

$5,051

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from Las Vegas to Ko Samui

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 Ko Samui in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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-Ko Samui flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Las Vegas-Ko Samui flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Las Vegas-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Ko Samui flights, Cheapflights users trust eDreams the most. eDreams 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-Ko Samui 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 Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui 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 Ko Samui

What is the cheapest time of day to fly from LAS to USM?

Find hourly flight availability from Las Vegas to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

One of the essential ways to save on airfare from Las Vegas to Ko Samui is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

What is the cheapest day to fly from Las Vegas to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Las Vegas to Ko Samui flight should consider departing on Friday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Ko Samui. 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 Ko Samui?

    Singapore Airlines and Qatar Airways can get you from Las Vegas to Ko Samui in just under 31h 35m. Your travel time can differ by up to 1h 19m. There are 8534 mi between Las Vegas and Ko Samui. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Las Vegas to Ko Samui?

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

  • Can I find deals for business class flights from Las Vegas to Ko Samui?

    Yes. Cheapflights offers flight deals from Las Vegas to Ko Samui 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

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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