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Ko Samui

$485+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
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 April 16, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$774
(FlightHub)

One-way from

$485
(FlightHub)

Popular in

December

Cheapest in

March
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
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One-way flight from USA to Ko Samui
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Highest demand for flights based on searches. 19% potential increase in price ($449 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($164 potential savings vs. average RT price).
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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 April 16, 2025.

This FlightHub deal was found by Cheapflights users on 4/15. 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 9/2511:30 amSFO - USM
1 stop30h 20mSingapore Airlines
Sun 9/285:50 pmUSM - SFO
1 stop29h 50mSingapore Airlines
Deal found 4/15$774
This Gurufare deal was found by Cheapflights users on 4/15. 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.
Sun 5/411:40 pmLAX - USM
1 stop28h 50mSingapore Airlines
Sun 5/118:45 amUSM - LAX
1 stop27h 05mSingapore Airlines
Deal found 4/15$845
This FlightHub deal was found by Cheapflights users on 4/14. 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 11/52:50 pmLAX - USM
2 stops26h 50mMultiple Airlines
Wed 11/262:30 pmUSM - LAX
2 stops20h 05mMultiple Airlines
Deal found 4/14$920
This Trip.com deal was found by Cheapflights users on 4/15. 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 9/241:05 amSFO - USM
2 stops29h 25mMultiple Airlines
Sun 9/288:45 amUSM - SFO
2 stops25h 10mMultiple Airlines
Deal found 4/15$955
This Singapore Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 10/410:15 amSEA - USM
1 stop31h 35mSingapore Airlines
Sat 10/118:45 amUSM - SEA
1 stop38h 00mSingapore Airlines
Deal found 4/16$1,003
This SmartFares deal was found by Cheapflights users on 4/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:00 pmSFO - USM
2 stops28h 35mEVA Air
Sun 9/289:00 pmUSM - SFO
2 stops23h 50mEVA Air
Deal found 4/15$1,026
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Sun 8/311:05 amSFO - USM
2 stops24h 05mChina Airlines
Fri 9/1211:45 amUSM - SFO
2 stops22h 45mChina Airlines
Deal found 4/16$1,032
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Tue 8/261:20 amJFK - USM
2 stops26h 50mMultiple Airlines
Wed 9/178:50 pmUSM - JFK
2 stops34h 50mMultiple Airlines
Deal found 4/16$1,045
This Justfly.com deal was found by Cheapflights users on 4/16. 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 10/31:30 amSEA - USM
2 stops30h 05mEVA Air
Sat 10/112:00 pmUSM - SEA
2 stops18h 50mEVA Air
Deal found 4/16$1,073
This SmartFares deal was found by Cheapflights users on 4/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2911:40 amLAX - USM
2 stops30h 35mEVA Air
Sun 5/188:50 pmUSM - LAX
2 stops24h 20mEVA Air
Deal found 4/15$1,083
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Sun 9/149:35 pmBOS - USM
2 stops24h 45mTurkish Airlines
Sun 9/289:00 pmUSM - BOS
2 stops33h 40mTurkish Airlines
Deal found 4/16$1,085
This oojo deal was found by Cheapflights users on 4/16. 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.
Sat 10/44:30 pmSEA - USM
2 stops28h 00mMultiple Airlines
Sat 10/1112:10 pmUSM - SEA
2 stops38h 35mMultiple Airlines
Deal found 4/16$1,134

Cheapflights Fare Finder

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 April 16, 2025.
Use the filters below to find and compare flights from the United States to Ko Samui that are best for you.

Fly from

USA

Fly to

Ko Samui

Route

Depart

Return

Price

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 5/4

11:40 pm-6:30 pm

1 stop28h 50m

Ko Samui

Sun 5/11

8:45 am-9:50 pm

1 stop27h 05m

$842

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Tue 8/26

1:20 am-3:10 pm

2 stops26h 50m

Ko Samui

Wed 9/17

8:50 pm-8:40 pm

2 stops34h 50m

$1,045

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 5/4

12:10 pm-11:05 am

2 stops32h 55m

Ko Samui

Sun 5/11

8:50 pm-9:50 am

2 stops27h 00m

$1,050

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Wed 4/30

1:05 am-2:45 pm

2 stops23h 40m

Ko Samui

Fri 5/9

8:00 am-7:55 pm

2 stops25h 55m

$1,111

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Thu 5/1

12:30 pm-7:35 am

2 stops29h 05m

Ko Samui

Fri 5/9

7:15 pm-6:45 am

2 stops25h 30m

$1,141

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Wed 8/27

2:55 pm-7:20 am

2 stops29h 25m

Ko Samui

Wed 9/17

8:50 pm-4:05 pm

2 stops30h 15m

$1,206

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Sat 5/24

4:30 pm-10:30 am

2 stops28h 00m

Ko Samui

Sat 5/31

3:50 pm-7:30 pm

2 stops41h 40m

$1,227

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Wed 10/1

9:40 pm-9:20 am

2 stops24h 40m

Ko Samui

Fri 10/31

1:45 pm-12:15 pm

2 stops33h 30m

$1,252

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Fri 5/30

4:30 pm-11:55 am

2 stops29h 25m

Ko Samui

Fri 6/6

5:55 pm-12:45 pm

2 stops56h 50m

$1,287

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Wed 8/27

8:55 pm-6:30 pm

2 stops34h 35m

Ko Samui

Wed 9/17

7:25 pm-6:50 pm

1 stop34h 25m

$1,292

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 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.

Cheapflights Insights

Everything you need to know about your flight from the United States to Ko Samui

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 April 16, 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 April 16, 2025.
Get a feel of what it's like to fly with EVA Air, China Airlines and Singapore 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
1,176 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

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
1,176 reviews
EVA Air
8.4
Very good
1,176 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

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
729 reviews
EVA Air
8.4
Very good
1,176 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

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
1,288 reviews
EVA Air
8.4
Very good
1,176 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

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
8.0
Very good
3,200 reviews
EVA Air
8.4
Very good
1,176 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

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.
Vietnam Airlines
7.6
Good
194 reviews
EVA Air
8.4
Very good
1,176 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

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 Singapore Airlines, which is currently one of the cheapest options available, starting at $485. EVA Air flights start at $569 while deals on Qatar Airways start at $624 one-way.

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

    Most travelers choose New York John F Kennedy Intl - Ko Samui, Newark - 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 Tao
Ko Pha Ngan

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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 3 airlines flying from USA to Ko Samui

Discover the top 3 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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$873Average$1,308FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,041Average$1,230FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,338Average$1,748FlexibilityNo cancel feeOn-time68%

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