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Ko Samui

$1,320+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — USM
Jul 12 — Jul 191
Sat 7/12
Sat 7/19
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 July 7, 2025.

Round-trip from

$1,498
(Cathay Pacific)
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 July 7, 2025.

This Mytrip deal was found by Cheapflights users on 7/5. 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 8/197:25 amLAS - USM
3 stops34h 25mMultiple Airlines
Tue 8/2610:55 amUSM - LAS
2 stops26h 14mMultiple Airlines
Deal found 7/5$1,320
This Cathay Pacific deal was found by Cheapflights users on 7/6. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:45 pmLAS - USM
2 stops32h 50mCathay Pacific
Mon 9/2210:55 amUSM - LAS
2 stops23h 46mCathay Pacific
Deal found 7/6$1,498
This Singapore Airlines deal was found by Cheapflights users on 7/6. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:10 amLAS - USM
2 stops46h 05mSingapore Airlines
Mon 9/221:30 pmUSM - LAS
3 stops40h 44mSingapore Airlines
Deal found 7/6$1,801
This Qatar Airways deal was found by Cheapflights users on 7/5. 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 7/1912:41 pmLAS - USM
3 stops31h 29mQatar Airways
Mon 3/99:10 pmUSM - LAS
3 stops35h 22mQatar Airways
Deal found 7/5$1,866
This British Airways deal was found by Cheapflights users on 7/5. 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 7/1910:00 pmLAS - USM
2 stops33h 10mBritish Airways
Mon 3/91:25 pmUSM - LAS
2 stops44h 25mBritish Airways
Deal found 7/5$2,590
This business-class.com deal was found by Cheapflights users on 7/5. 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.
Fri 8/19:10 amLAS - USM
3 stops33h 05mJapan Airlines
Sun 8/317:10 pmUSM - LAS
3 stops39h 31mJapan Airlines
Deal found 7/5$18,981

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 7, 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

Tue 8/19

7:25 am-7:50 am

3 stops34h 25m

Ko Samui

Tue 8/26

10:55 am-11:09 pm

2 stops26h 14m

$1,320

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Thu 9/18

7:45 pm-6:35 pm

2 stops32h 50m

Ko Samui

Mon 9/22

10:55 am-8:41 pm

2 stops23h 46m

$1,498

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Thu 9/18

6:10 am-6:15 pm

2 stops46h 05m

Ko Samui

Mon 9/22

1:30 pm-4:14 pm

3 stops40h 44m

$1,801

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sat 7/19

12:41 pm-10:10 am

3 stops31h 29m

Ko Samui

Mon 3/9

9:10 pm-6:32 pm

3 stops35h 22m

$1,866

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Sat 7/19

10:00 pm-9:10 pm

2 stops33h 10m

Ko Samui

Mon 3/9

1:25 pm-7:50 pm

2 stops44h 25m

$2,590

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Fri 8/1

9:10 am-8:15 am

3 stops33h 05m

Ko Samui

Sun 8/31

7:10 pm-8:41 pm

3 stops39h 31m

$18,981

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/5

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

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.

Read more about Southwestby Marisa Garcia
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.

Read more about Spirit Airlinesby Daniel Scheffler
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more

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 July 7, 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.

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 July 7, 2025.
Peruse reviews from past customers who have flown with Singapore Airlines, Cathay Pacific, and Qatar Airways from Las Vegas to Ko Samui to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,322 reviews

Crew

8.6

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very good
1,322 reviews
Singapore Airlines
8.1
Very good
1,322 reviews

Crew

8.6

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Cathay Pacific
7.6
Good
925 reviews
Singapore Airlines
8.1
Very good
1,322 reviews

Crew

8.6

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Qatar Airways
7.4
Good
3,589 reviews
Singapore Airlines
8.1
Very good
1,322 reviews

Crew

8.6

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
British Airways
6.6
Okay
7,095 reviews
Singapore Airlines
8.1
Very good
1,322 reviews

Crew

8.6

Comfort

7.9

Food

7.7

Entertainment

8.0

Overall

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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.

  • 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.

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