HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Samui

$1,189+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — USM
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Las Vegas to Ko Samui with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 March 11, 2026.

This oojo deal was found by Cheapflights users on 3/10. 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.
Wed 4/81:10 pm
LAS
-
USM
2 stops40h 30m
Multiple Airlines
Mon 4/2011:55 am
USM
-
LAS
2 stops35h 07m
Multiple Airlines
Deal found 3/10$1,190
This BusinessClass deal was found by Cheapflights users on 3/10. 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.
Thu 4/96:43 pm
LAS
-
USM
2 stops34h 57m
Cathay Pacific
Tue 4/2111:55 am
USM
-
LAS
2 stops23h 05m
Cathay Pacific
Deal found 3/10$1,191
This oojo deal was found by Cheapflights users on 3/10. 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.
Fri 4/101:10 pm
LAS
-
USM
2 stops40h 30m
Multiple Airlines
Tue 4/2111:55 am
USM
-
LAS
2 stops34h 51m
Multiple Airlines
Deal found 3/10$1,240
This BusinessClass deal was found by Cheapflights users on 3/9. 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.
Fri 4/107:15 am
LAS
-
USM
2 stops46h 25m
Cathay Pacific
Tue 4/2111:55 am
USM
-
LAS
2 stops23h 05m
Cathay Pacific
Deal found 3/9$1,241
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:45 pm
LAS
-
USM
2 stops25h 55m
Multiple Airlines
Wed 4/17:50 pm
USM
-
LAS
3 stops35h 24m
Multiple Airlines
Deal found 3/9$1,771
This BusinessClass deal was found by Cheapflights users on 3/9. 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.
Tue 3/247:10 am
LAS
-
USM
2 stops46h 25m
Cathay Pacific
Wed 4/111:55 am
USM
-
LAS
2 stops23h 05m
Cathay Pacific
Deal found 3/9$1,842
This Qatar Airways deal was found by Cheapflights users on 3/6. 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.
Thu 4/911:51 am
LAS
-
USM
3 stops33h 14m
Qatar Airways
Tue 4/218:50 pm
USM
-
LAS
3 stops34h 38m
Qatar Airways
Deal found 3/6$1,862
This Qatar Airways deal was found by Cheapflights users on 3/6. 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.
Fri 4/1011:51 am
LAS
-
USM
3 stops33h 14m
Qatar Airways
Tue 4/218:50 pm
USM
-
LAS
3 stops34h 38m
Qatar Airways
Deal found 3/6$1,902

Find 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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,190
(oojo)
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Ko Samui flights.
Search Deals
From Las Vegas Harry Reid Intl to Ko Samui
Search Deals

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 March 11, 2026.
Use the filters below to find and compare flights from Las Vegas to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Wed 4/8

1:10 pm-7:40 pm

2 stops40h 30m

Ko Samui

Mon 4/20

11:55 am-9:02 am

2 stops35h 07m

$1,190

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Wed 4/8

7:15 am-7:40 pm

2 stops46h 25m

Ko Samui

Mon 4/20

11:55 am-2:14 pm

2 stops40h 19m

$1,191
Quickest round-trip

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Thu 4/9

6:43 pm-7:40 pm

2 stops34h 57m

Ko Samui

Tue 4/21

11:55 am-9:00 pm

2 stops23h 05m

$1,191

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Fri 4/10

1:10 pm-7:40 pm

2 stops40h 30m

Ko Samui

Tue 4/21

11:55 am-8:46 am

2 stops34h 51m

$1,240

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Fri 4/10

6:43 pm-7:40 pm

2 stops34h 57m

Ko Samui

Tue 4/21

11:55 am-9:00 pm

2 stops23h 05m

$1,241

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Fri 4/10

11:51 am-11:05 am

3 stops33h 14m

Ko Samui

Tue 4/21

8:50 pm-5:28 pm

3 stops34h 38m

$1,902

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Thu 4/9

11:51 am-11:40 am

3 stops33h 49m

Ko Samui

Tue 4/21

8:35 pm-5:28 pm

3 stops34h 53m

$1,924

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Ko Samui flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 11, 2026.

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?

    Cathay Pacific can get you from Las Vegas to Ko Samui in just under 46h 25m. Your travel time can differ by up to . There are 8534 mi between Las Vegas and Ko Samui.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Las Vegas to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Las Vegas to Suvarnabhumi flights
Las Vegas to Phuket City flights
Las Vegas to Chiang Mai flights
Las Vegas to Don Mueang Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.