Enjoy free checked bags and no change fees with Southwest's low-cost policy.
Southwest offers free messaging and in-flight entertainment streamed to your device.
$1,272+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — USM
Jun 17 — Jun 241
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
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 June 12, 2025.
Round-trip from | $1,272 (Mytrip) |
|---|
Find flight deals from Las Vegas to Ko Samui
Cheapest flights from Las Vegas to Ko SamuiExplore 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 June 12, 2025.
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 June 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Mon 11/246:20 amLAS - USM
3 stops33h 50mMultiple Airlines
Sun 12/78:30 pmUSM - LAS
2 stops34h 21mMultiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,272
This oojo deal was found by Cheapflights users on 6/12. 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.
Mon 10/139:15 pmLAS - USM
2 stops33h 55mSingapore Airlines
Mon 10/274:25 pmUSM - LAS
2 stops37h 38mSingapore Airlines
Deal found 6/12![Singapore Airlines logo]()
$1,485
This Qatar Airways deal was found by Cheapflights users on 6/10. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2512:00 pmLAS - USM
3 stops32h 10mQatar Airways
Fri 8/19:00 pmUSM - LAS
3 stops35h 16mQatar Airways
Deal found 6/10![Qatar Airways logo]()
$2,112
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 June 12, 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
Mon 11/24
6:20 am-7:10 am
3 stops33h 50m
Ko Samui
Sun 12/7
8:30 pm-3:51 pm
2 stops34h 21m
$1,272
Las VegasKo Samui
LAS - USM
LASUSM
Las Vegas Harry Reid Intl
Mon 10/13
9:15 pm-9:10 pm
2 stops33h 55m
Ko Samui
Mon 10/27
4:25 pm-4:03 pm
2 stops37h 38m
$1,485
Las VegasKo Samui
LAS - USM
LASUSM
Las Vegas Harry Reid Intl
Fri 7/25
12:00 pm-10:10 am
3 stops32h 10m
Ko Samui
Fri 8/1
9:00 pm-6:16 pm
3 stops35h 16m
$2,112
The best insider tips for Las Vegas to Ko Samui flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to Ko Samui trip
Airlines
![Southwest]()
Southwest
![Spirit Airlines]()
Spirit Airlines
Consider Big Front Seats for 11 inches more legroom and larger tray tables for comfort.
Use Spirit Saver$ Club for discounts on fares, luggage, and boarding shortcuts.
Our travel experts
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 June 12, 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 24% 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. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.
Temperature in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).
Reviews of airlines servicing Ko Samui
Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated June 12, 2025.
Food
7.7
Entertainment
8.0
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.6
Reviews
1 / 20
6.0
GoodGina,Dec 2024
BLR - SIN
Food
7.7
Entertainment
8.0
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.6
Reviews
1 / 20
6.0
GoodGina,Dec 2024
BLR - SIN
Food
7.7
Entertainment
8.0
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.6
Reviews
1 / 20
6.0
GoodGina,Dec 2024
BLR - SIN
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.
Traveling to a place near Las Vegas?
Book flights to Las Vegas if you plan to visit one of these locationsKo Tao
Ko Pha Ngan