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Ko Samui

$499+ Cheap flights from the United States 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Mar 10 — Mar 171
Mon 3/10
Mon 3/17
1 adult, Economy
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Cheap flight deals from USA to Ko Samui

Keep the following information in mind while searching for USA to Ko Samui flight deals. Data was last updated March 5, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$903
(Justfly.com)

One-way from

$499
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,410
Provider with most accurate pricing for New York (NYC)-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Ko Samui flights.
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From USA to Ko Samui
Search Deals
One-way flight from USA to Ko Samui
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Highest demand for flights based on searches. 13% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($80 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from USA to Ko Samui

Cheapest flights from USA to Ko Samui
Explore the most affordable flight options available from USA to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 5, 2025.

This Japan Airlines deal was found by Cheapflights users on 3/5. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:40 amJFK - USM
2 stops29h 05mMultiple Airlines
Wed 9/177:10 pmUSM - JFK
2 stops34h 15mMultiple Airlines
Deal found 3/5$882
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:55 pmLAX - USM
2 stops27h 10mMultiple Airlines
Tue 9/237:30 pmUSM - LAX
2 stops28h 15mMultiple Airlines
Deal found 3/5$891
This 123 Milhas deal was found by Cheapflights users on 3/4. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/154:30 pmSEA - USM
2 stops28h 00mMultiple Airlines
Tue 4/223:25 pmUSM - SEA
2 stops35h 20mMultiple Airlines
Deal found 3/4$906
This FlightHub deal was found by Cheapflights users on 3/4. 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.
Mon 9/13:00 pmLAX - USM
2 stops27h 15mJapan Airlines
Tue 9/309:00 pmUSM - LAX
2 stops29h 05mJapan Airlines
Deal found 3/4$907
This Gurufare deal was found by Cheapflights users on 3/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/12:20 pmLAX - USM
2 stops27h 30mSingapore Airlines
Tue 9/3012:05 pmUSM - LAX
1 stop23h 35mSingapore Airlines
Deal found 3/4$954
This FlightHub deal was found by Cheapflights users on 3/4. 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.
Wed 9/241:20 pmBOS - USM
2 stops31h 55mJapan Airlines
Thu 10/29:00 pmUSM - BOS
2 stops32h 05mJapan Airlines
Deal found 3/4$1,044
This Japan Airlines deal was found by Cheapflights users on 3/5. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/81:20 pmBOS - USM
2 stops31h 55mMultiple Airlines
Mon 11/38:30 pmUSM - BOS
2 stops32h 35mMultiple Airlines
Deal found 3/5$1,057
This oojo deal was found by Cheapflights users on 3/4. 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 3/1211:40 amLAX - USM
2 stops30h 00mEVA Air
Wed 3/269:30 pmUSM - LAX
2 stops23h 30mEVA Air
Deal found 3/4$1,062
This Trip.com deal was found by Cheapflights users on 3/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:05 amORD - USM
2 stops31h 05mMultiple Airlines
Wed 12/107:00 amUSM - ORD
2 stops38h 30mMultiple Airlines
Deal found 3/3$1,144
This Justfly.com deal was found by Cheapflights users on 3/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:30 amORD - USM
2 stops26h 15mEVA Air
Mon 9/298:45 amUSM - ORD
2 stops24h 00mEVA Air
Deal found 3/4$1,149
This FlightHub deal was found by Cheapflights users on 3/4. 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.
Mon 11/312:30 amJFK - USM
2 stops32h 15mQatar Airways
Tue 11/189:25 pmUSM - JFK
2 stops29h 25mQatar Airways
Deal found 3/4$1,165
This flugladen.de deal was found by Cheapflights users on 3/4. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/154:30 pmSEA - USM
2 stops28h 00mQatar Airways
Tue 4/225:55 pmUSM - SEA
2 stops32h 50mQatar Airways
Deal found 3/4$1,166

Find flights from USA to Ko Samui within your budget

Customize your flight search to find flights from USA 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 5, 2025.

Fly from

USA

Fly to

Ko Samui

Route

Depart

Return

Price

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Tue 4/15

4:30 pm-10:30 am

2 stops28h 00m

Ko Samui

Tue 4/22

3:25 pm-12:45 pm

2 stops35h 20m

$906

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 5/11

8:40 pm-7:50 am

1 stop21h 10m

Ko Samui

Sat 5/24

8:45 am-9:40 pm

1 stop26h 55m

$1,017

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Wed 3/12

11:40 am-7:40 am

2 stops30h 00m

Ko Samui

Wed 3/26

9:30 pm-7:00 am

2 stops23h 30m

$1,062

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Wed 4/2

12:05 am-12:45 pm

2 stops22h 40m

Ko Samui

Thu 4/10

8:00 am-8:45 pm

2 stops26h 45m

$1,093

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Tue 4/15

4:30 pm-10:30 am

2 stops28h 00m

Ko Samui

Tue 4/22

5:55 pm-12:45 pm

2 stops32h 50m

$1,166

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Sun 4/20

1:25 am-2:45 pm

2 stops26h 20m

Ko Samui

Wed 5/14

8:00 am-10:05 pm

2 stops25h 05m

$1,180

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Sun 4/20

1:25 am-1:45 pm

2 stops25h 20m

Ko Samui

Wed 5/14

8:00 am-10:05 pm

2 stops25h 05m

$1,189

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 4/17

1:30 am-2:45 pm

2 stops23h 15m

Ko Samui

Fri 4/25

10:05 am-7:30 pm

2 stops23h 25m

$1,236

ChicagoKo Samui

ORD - USM

ORDUSM

Chicago O'Hare Intl

Wed 4/16

4:00 pm-8:15 am

2 stops28h 15m

Ko Samui

Wed 4/23

3:30 pm-2:25 pm

2 stops34h 55m

$1,237

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Fri 3/28

9:00 pm-8:35 am

2 stops24h 35m

Ko Samui

Mon 4/7

1:30 pm-7:40 pm

2 stops41h 10m

$1,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 57 results
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Best time to book a flight from USA to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from USA 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.

Travel insights for flights from USA to Ko Samui

Get recent, data-driven insights about flights from USA to Ko Samui including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from US to USM?

Find hourly flight availability from USA 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 5, 2025.

When flying from USA to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 March 5, 2025.
Get a feel of what it's like to fly with EVA Air, Japan Airlines and China Airlines from USA to Ko Samui by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,181 reviews

Entertainment

8.0

Food

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

EVA Air
8.4
Very good
1,181 reviews
EVA Air
8.4
Very good
1,181 reviews

Entertainment

8.0

Food

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Japan Airlines
8.3
Very good
1,437 reviews
EVA Air
8.4
Very good
1,181 reviews

Entertainment

8.0

Food

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

China Airlines
8.2
Very good
722 reviews
EVA Air
8.4
Very good
1,181 reviews

Entertainment

8.0

Food

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Emirates
8.1
Very good
3,232 reviews
EVA Air
8.4
Very good
1,181 reviews

Entertainment

8.0

Food

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Singapore Airlines
8.1
Very good
1,284 reviews
EVA Air
8.4
Very good
1,181 reviews

Entertainment

8.0

Food

8.0

Boarding

8.4

Comfort

8.2

Crew

8.6

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from USA to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from United States?

    For a flight from United States to Ko Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city.

  • What are the cheapest airlines to fly from USA to Ko Samui one-way?

    To fly one-way, consider booking your trip with EVA Air, which is currently one of the cheapest options available, starting at $607. Singapore Airlines flights start at $657 while deals on Cathay Pacific start at $851 one-way.

  • What are the most popular routes from USA to Ko Samui?

    Most travelers choose Seattle/Tacoma Intl - Ko Samui, New York John F Kennedy Intl - Ko Samui or Chicago O'Hare Intl - Ko Samui when deciding on the best route from USA to Ko Samui.

  • Can I find deals for flights from USA to Ko Samui that include hotel bookings?

    Yes. In addition to deals on USA to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Ko Samui.

  • Can I find deals for business class flights from USA to Ko Samui?

    Yes. Cheapflights offers flight deals from USA 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 the United States?

Book flights to the United States if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

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Alternative routes for USA to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from USA to Ko Samui

Discover the top 4 airlines that operate flights from USA to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$873Average$1,321FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,052Average$1,237FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,338Average$1,733FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,472Average$1,714FlexibilityNo cancel feeOn-time72%
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