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Koh Samui

$459+ Cheap flights from the United States to Koh 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Jan 28 — Feb 41
Tue 1/28
Tue 2/4
1 adult, Economy
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Cheap flight deals from USA to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from USA (US0) to Koh 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 January 23, 2025.

Round-trip from

$935
(Trip.com)

One-way from

$459
(Trip.com)
From USA to Ko Samui
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One-way flight from USA to Ko Samui
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Find flight deals from USA to Koh Samui

Cheapest flights from USA to Koh Samui
Explore the most affordable flight options available from USA to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.

This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:20 pmSFO - USM
2 stops31h 50mMultiple Airlines
Mon 9/297:15 pmUSM - SFO
2 stops28h 50mMultiple Airlines
Deal found 1/21$887
This Trip.com deal was found by Cheapflights users on 1/21. 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 3/512:45 pmSEA - USM
2 stops27h 40mMultiple Airlines
Wed 3/127:55 amUSM - SEA
2 stops42h 00mMultiple Airlines
Deal found 1/21$935
This FlightHub deal was found by Cheapflights users on 1/22. 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 3/1211:05 pmLAX - USM
1 stop29h 25mSingapore Airlines
Wed 3/268:55 amUSM - LAX
1 stop24h 05mSingapore Airlines
Deal found 1/22$935
This FlightHub deal was found by Cheapflights users on 1/21. 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 9/111:30 amSFO - USM
1 stop30h 35mSingapore Airlines
Mon 9/299:00 amUSM - SFO
1 stop38h 40mSingapore Airlines
Deal found 1/21$972
This Justfly.com deal was found by Cheapflights users on 1/21. 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.
Sun 8/311:25 amSFO - USM
2 stops22h 20mEVA Air
Tue 9/308:45 amUSM - SFO
2 stops21h 15mEVA Air
Deal found 1/21$1,006
This Trip.com deal was found by Cheapflights users on 1/21. 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.
Thu 2/2011:30 amLAX - USM
2 stops28h 55mMultiple Airlines
Thu 2/278:20 amUSM - LAX
2 stops39h 45mMultiple Airlines
Deal found 1/21$1,012
This oojo deal was found by Cheapflights users on 1/23. 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 3/512:10 amSEA - USM
2 stops25h 50mEVA Air
Thu 3/132:05 pmUSM - SEA
2 stops19h 05mEVA Air
Deal found 1/23$1,055
This Ovago deal was found by Cheapflights users on 1/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:40 amJFK - USM
2 stops29h 50mMultiple Airlines
Wed 9/177:15 pmUSM - JFK
2 stops26h 45mMultiple Airlines
Deal found 1/22$1,059
This FlightHub deal was found by Cheapflights users on 1/23. 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 2/138:40 amSEA - USM
1 stop32h 20mSingapore Airlines
Fri 3/148:55 amUSM - SEA
1 stop37h 15mSingapore Airlines
Deal found 1/23$1,082
This Ovago deal was found by Cheapflights users on 1/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1112:05 amLAX - USM
2 stops25h 35mEVA Air
Wed 3/269:20 amUSM - LAX
2 stops21h 00mEVA Air
Deal found 1/22$1,087
This Justfly.com deal was found by Cheapflights users on 1/23. 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 40mEVA Air
Mon 9/299:15 amUSM - ORD
2 stops23h 30mEVA Air
Deal found 1/23$1,149
This FlightHub deal was found by Cheapflights users on 1/23. 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 4/64:30 pmSEA - USM
2 stops34h 25mQatar Airways
Sat 4/123:25 pmUSM - SEA
2 stops35h 05mQatar Airways
Deal found 1/23$1,151

Find flights from USA to Koh Samui within your budget

Customize your flight search to find flights from USA to Koh 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 January 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Wed 3/12

11:05 pm-6:30 pm

1 stop29h 25m

Ko Samui

Wed 3/26

8:55 am-7:00 pm

1 stop24h 05m

$935

SeattleKoh Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 3/6

12:45 pm-7:25 am

2 stops27h 40m

Ko Samui

Thu 3/13

9:30 pm-11:55 am

2 stops28h 25m

$967

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Thu 2/20

11:30 am-7:25 am

2 stops28h 55m

Ko Samui

Thu 2/27

8:20 am-9:05 am

2 stops39h 45m

$1,012

San FranciscoKoh Samui

SFO - USM

SFOUSM

San Francisco

Thu 3/13

12:40 am-8:45 pm

2 stops30h 05m

Ko Samui

Sun 3/30

3:20 pm-6:45 am

2 stops29h 25m

$1,044

SeattleKoh Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Wed 3/5

12:10 am-5:00 pm

2 stops25h 50m

Ko Samui

Thu 3/13

2:05 pm-7:10 pm

2 stops19h 05m

$1,055

SeattleKoh Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 2/13

8:40 am-8:00 am

1 stop32h 20m

Ko Samui

Fri 3/14

8:55 am-8:10 am

1 stop37h 15m

$1,082

San FranciscoKoh Samui

SFO - USM

SFOUSM

San Francisco

Fri 4/11

1:05 am-4:50 pm

2 stops25h 45m

Ko Samui

Mon 4/28

2:35 pm-7:55 pm

2 stops19h 20m

$1,085

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Tue 3/11

12:05 am-3:40 pm

2 stops25h 35m

Ko Samui

Wed 3/26

9:20 am-4:20 pm

2 stops21h 00m

$1,087

SeattleKoh Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Thu 4/3

4:30 pm-10:30 am

2 stops28h 00m

Ko Samui

Mon 4/14

5:55 pm-12:30 pm

2 stops32h 35m

$1,151

San FranciscoKoh Samui

SFO - USM

SFOUSM

San Francisco

Fri 3/14

10:40 am-6:15 pm

1 stop41h 35m

Ko Samui

Sat 3/29

11:45 am-9:40 am

1 stop35h 55m

$1,223

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 60 results
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Best time to book a flight from USA to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh 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 Koh Samui

Get recent, data-driven insights about flights from USA to Koh 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 Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 23, 2025.

When flying from USA to Koh 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 Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh 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 Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated January 23, 2025.
Get a feel of what it's like to fly with Qatar Airways, EVA Air and Singapore Airlines from USA to Koh 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
1,251 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 10

Excellent crew, smooth flight, good food and service. We have flown with other carriers but this one is the best so far.

EVA Air
8.4
Very good
1,251 reviews
EVA Air
8.4
Very good
1,251 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 10

Excellent crew, smooth flight, good food and service. We have flown with other carriers but this one is the best so far.

Japan Airlines
8.3
Very good
1,446 reviews
EVA Air
8.4
Very good
1,251 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 10

Excellent crew, smooth flight, good food and service. We have flown with other carriers but this one is the best so far.

China Airlines
8.2
Very good
732 reviews
EVA Air
8.4
Very good
1,251 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 10

Excellent crew, smooth flight, good food and service. We have flown with other carriers but this one is the best so far.

Emirates
8.1
Very good
3,351 reviews
EVA Air
8.4
Very good
1,251 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 10

Excellent crew, smooth flight, good food and service. We have flown with other carriers but this one is the best so far.

Singapore Airlines
8.1
Very good
1,328 reviews
EVA Air
8.4
Very good
1,251 reviews

Crew

8.6

Entertainment

8.0

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Reviews

1 / 10

Excellent crew, smooth flight, good food and service. We have flown with other carriers but this one is the best so far.

Related info for your journey

Find useful and relevant information for your journey from USA to Koh 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 Koh Samui from United States?

    For a flight from United States to Koh 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 Koh Samui one-way?

    $567 is the cheapest one-way deal found within the past few days, from EVA Air. You may also be able to find cheap deals on Singapore Airlines and Qatar Airways, with prices starting from $581 and $587, respectively.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from USA to Koh 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 Koh 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 Koh Samui

Discover the top 4 airlines that operate flights from USA to Koh 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 January 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$910Average$1,303FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,052Average$1,263FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$1,231Average$1,486FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,338Average$1,479FlexibilityNo cancel feeOn-time68%
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