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Ko Samui

$756+ Cheap flights from Las Vegas (LAS) to Ko Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — USM
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Find cheap flights from Las Vegas to Ko Samui with Cheapflights

1. Tell us where you want to go

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2. Select your favorite providers

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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 July 29, 2026.

This Cathay Pacific deal was found by Cheapflights users on 7/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:34 pm
LAS
-
USM
2 stops36h 06m
Cathay Pacific
Sun 9/2011:55 am
USM
-
LAS
2 stops47h 07m
Cathay Pacific
Deal found 7/27$1,494
This KAYAK deal was found by Cheapflights users on 7/28. 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.
Fri 12/257:29 am
LAS
-
USM
3 stops33h 06m
Multiple Airlines
Fri 1/88:20 pm
USM
-
LAS
3 stops31h 40m
Multiple Airlines
Deal found 7/28$1,762
This British Airways deal was found by Cheapflights users on 7/28. 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.
Wed 12/238:55 pm
LAS
-
USM
2 stops33h 25m
British Airways
Sun 1/101:25 pm
USM
-
LAS
2 stops44h 25m
British Airways
Deal found 7/28$2,143
This British Airways deal was found by Cheapflights users on 7/28. 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.
Wed 12/238:55 pm
LAS
-
USM
2 stops31h 50m
British Airways
Thu 1/71:25 pm
USM
-
LAS
2 stops40h 30m
British Airways
Deal found 7/28$2,198
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:10 pm
LAS
-
USM
2 stops28h 55m
Multiple Airlines
Thu 1/79:10 pm
USM
-
LAS
2 stops33h 58m
Multiple Airlines
Deal found 7/28$2,213
This British Airways deal was found by Cheapflights users on 7/28. 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 12/278:55 pm
LAS
-
USM
2 stops31h 50m
British Airways
Thu 1/71:25 pm
USM
-
LAS
2 stops44h 25m
British Airways
Deal found 7/28$2,253
This British Airways deal was found by Cheapflights users on 7/28. 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.
Wed 12/238:55 pm
LAS
-
USM
2 stops31h 50m
British Airways
Wed 1/61:25 pm
USM
-
LAS
2 stops44h 25m
British Airways
Deal found 7/28$2,309
This British Airways deal was found by Cheapflights users on 7/28. 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.
Sat 12/268:55 pm
LAS
-
USM
2 stops33h 25m
British Airways
Fri 1/81:25 pm
USM
-
LAS
2 stops44h 25m
British Airways
Deal found 7/28$2,364
This British Airways deal was found by Cheapflights users on 7/28. 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.
Thu 12/248:55 pm
LAS
-
USM
2 stops31h 50m
British Airways
Sat 1/91:25 pm
USM
-
LAS
2 stops44h 25m
British Airways
Deal found 7/28$2,474
This KAYAK deal was found by Cheapflights users on 7/28. 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.
Wed 12/236:56 pm
LAS
-
USM
2 stops35h 09m
Singapore Airlines
Sun 1/101:25 pm
USM
-
LAS
3 stops46h 03m
Singapore Airlines
Deal found 7/28$3,943

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 July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,494
(Cathay Pacific)
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 July 29, 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 9/16

5:34 pm-7:40 pm

2 stops36h 06m

Ko Samui

Sun 9/20

11:55 am-9:02 pm

2 stops47h 07m

$1,494
Quickest round-trip

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sun 8/2

7:25 pm-7:40 pm

2 stops34h 15m

Ko Samui

Sat 8/8

11:55 am-9:10 pm

2 stops47h 15m

$20,310

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sun 8/2

7:25 pm-7:00 pm

3 stops57h 35m

Ko Samui

Sat 8/8

11:55 am-5:03 pm

2 stops43h 08m

$27,676
Cheapest one-way

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sat 12/26

4:45 pm-7:45 am

3 stops48h 00m

$801
Quickest one-way

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Fri 12/25

5:10 pm-4:15 pm

2 stops32h 05m

$1,359

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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.

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 36h 06m. 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

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