$527 Cheap Flights from Las Vegas (LAS) to Samui Intl. Airport (USM)

View $527 flight on Tue, Dec 30, 2025Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to Samui Intl. Airport (USM)

Cheap Flights from Las Vegas to Samui Intl. Airport (LAS-USM)

Prices were available within the past 7 days and start at $527 for one-way flights and $932 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Dec 1 - Thu, Dec 11
LAS
Las Vegas
USM
Koh Samui
$932 Roundtrip, found 1 day ago
$932
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 1 from Las Vegas to Koh Samui, returning Thu, Dec 11, priced at $932 found 1 day ago
United
Wed, Sep 24 - Sun, Oct 5
LAS
Las Vegas
USM
Koh Samui
$932 Roundtrip, found 1 day ago
$932
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 24 from Las Vegas to Koh Samui, returning Sun, Oct 5, priced at $932 found 1 day ago
United
Wed, Sep 24 - Sun, Oct 5
LAS
Las Vegas
USM
Koh Samui
$938 Roundtrip, found 1 day ago
$938
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 24 from Las Vegas to Koh Samui, returning Sun, Oct 5, priced at $938 found 1 day ago
United
Mon, Dec 1 - Thu, Dec 11
LAS
Las Vegas
USM
Koh Samui
$940 Roundtrip, found 1 day ago
$940
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 1 from Las Vegas to Koh Samui, returning Thu, Dec 11, priced at $940 found 1 day ago
United
Wed, Sep 24 - Sun, Oct 5
LAS
Las Vegas
USM
Koh Samui
$944 Roundtrip, found 1 day ago
$944
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 24 from Las Vegas to Koh Samui, returning Sun, Oct 5, priced at $944 found 1 day ago
United
Wed, Sep 24 - Sun, Oct 5
LAS
Las Vegas
USM
Koh Samui
$946 Roundtrip, found 1 day ago
$946
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 24 from Las Vegas to Koh Samui, returning Sun, Oct 5, priced at $946 found 1 day ago
Cathay Pacific
Thu, Oct 16 - Mon, Oct 20
LAS
Las Vegas
USM
Koh Samui
$1,499 Roundtrip, found 7 hours ago
$1,499
Roundtrip
found 7 hours ago
Select Cathay Pacific flight, departing Thu, Oct 16 from Las Vegas to Koh Samui, returning Mon, Oct 20, priced at $1,499 found 7 hours ago
KLM
Fri, Oct 24 - Tue, Oct 28
LAS
Las Vegas
USM
Koh Samui
$1,839 Roundtrip, found 7 hours ago
$1,839
Roundtrip
found 7 hours ago
Select KLM flight, departing Fri, Oct 24 from Las Vegas to Koh Samui, returning Tue, Oct 28, priced at $1,839 found 7 hours ago
Lufthansa
Sun, Feb 22 - Sat, Mar 7
LAS
Las Vegas
USM
Koh Samui
$2,089 Roundtrip, found 6 days ago
$2,089
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sun, Feb 22 from Las Vegas to Koh Samui, returning Sat, Mar 7, priced at $2,089 found 6 days ago
British Airways
Wed, Nov 26 - Mon, Dec 1
LAS
Las Vegas
USM
Koh Samui
$2,176 Roundtrip, just found
$2,176
Roundtrip
just found
Select British Airways flight, departing Wed, Nov 26 from Las Vegas to Koh Samui, returning Mon, Dec 1, priced at $2,176 just found

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM) cost?
Grab a cheap one-way flight from $527 or cheap return flight from $932 from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM)?
The cheapest month to fly from LAS to USM is December, when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM)?
To find the cheapest airline flying from LAS to USM, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM)?
You'll have to hop on a flight with a layover if you're traveling from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from LAS to USM?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM)?
To land at Ko Samui Airport (USM) without delays, select a flight that takes off from Harry Reid Intl. Airport (LAS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM) last-minute?
Holding off until right before your break to book a flight from LAS to USM generally means paying more. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a LAS to USM flight and hotel package?
You'll generally save money by booking a LAS to USM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Ko Samui Airport (USM)?
If you reserved your LAS to USM flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Samui Intl. Airport
Airlines serving
British Airways, Cathay Pacific, KLM, Lufthansa
Roundtrip price
$931
Distance
8539 mi

Book with confidence

Book with confidence

Las Vegas to Samui Intl. Airport Flights

The cheapest times to fly from Las Vegas to Samui Intl. Airport

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Las Vegas to Samui Intl. Airport are during the month of December. You can find some of the cheapest flights from Las Vegas to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Las Vegas to Samui Intl. Airport

Sunday is one of the best days to book for cheap flights from Las Vegas to Samui Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Las Vegas to Samui Intl. Airport

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Vegas to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $527 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Las Vegas to Samui Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Las Vegas to Samui Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Las Vegas to Samui Intl. Airport Flights
*Available to One Key members.