What is the cheapest airline that flies from United States to Ko Samui?

Singapore Airlines, Japan Airlines, and EVA Air are the most popular carriers operating from United States to Ko Samui

What airlines fly to Ko Samui?

Singapore Airlines, EVA Air and Qatar Airways are the top three most popular airlines that fly to Ko Samui from United States according to our data. Singapore Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ko Samui. Keep in mind that there are 3 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ko Samui?

Flight times vary depending on what airport in United States you fly out of and what airport in Ko Samui you fly into. For example, flying from Los Angeles to Ko Samui takes 21h 15m on average. On the other hand, flying from San Francisco to Ko Samui takes 21h 55m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from United States to Ko Samui Airport?

Prices for flights from United States to Ko Samui Airport refresh daily.

How many operators does momondo search for flights from United States to Ko Samui Airport?

There are 3 operators available for flights from United States to Ko Samui Airport as of July 2025.

How old do you have to be to fly from United States to Ko Samui Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$433 Cheap Flights from the United States to Ko Samui in 2025

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Find the cheapest flights from the United States to Ko Samui

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Ko Samui

9:30 pm - 1:05 pmLAX-USM

48h 35m2 stops

1:25 pm - 2:56 pmUSM-LAX

40h 31m2 stops

$685

Find Deal

Mon, Nov 3 - Mon, Nov 17

11:10 am - 7:35 pmLAX-USM

41h 25m1 stop

1:25 pm - 2:56 pmUSM-LAX

40h 31m2 stops

$696

Find Deal

Mon, Nov 3 - Mon, Nov 17

11:55 pm - 4:45 pmLAX-USM

26h 50m1 stop

8:45 am - 9:50 pmUSM-LAX

27h 05m1 stop

$718Singapore Airlines

Find Deal

Mon, Sep 8 - Thu, Sep 11

11:55 pm - 4:45 pmLAX-USM

26h 50m1 stop

8:45 am - 9:50 pmUSM-LAX

27h 05m1 stop

$719Singapore Airlines

Find Deal

Wed, Sep 10 - Fri, Sep 26

12:25 pm - 8:15 amSFO-USM

29h 50m2 stops

7:00 am - 9:45 amUSM-SFO

40h 45m2 stops

$911Japan Airlines

Find Deal

Tue, Sep 16 - Tue, Sep 30

2:00 pm - 8:15 amSFO-USM

28h 15m2 stops

7:10 pm - 10:05 amUSM-SFO

28h 55m2 stops

$918Japan Airlines

Find Deal

Sun, Sep 14 - Sun, Sep 28

12:45 am - 1:45 pmSFO-USM

23h 00m2 stops

10:00 am - 4:00 pmUSM-SFO

20h 00m2 stops

$994EVA Air

Find Deal

Sun, Oct 19 - Tue, Oct 28

12:30 pm - 8:15 amSFO-USM

29h 45m2 stops

10:00 am - 4:00 pmUSM-SFO

20h 00m2 stops

$1,014EVA Air

Find Deal

Mon, Oct 20 - Tue, Oct 28

10:00 pm - 5:30 pmBOS-USM

32h 30m2 stops

6:15 pm - 2:55 pmUSM-BOS

31h 40m2 stops

$1,226Qatar Airways

Find Deal

Fri, Oct 24 - Mon, Oct 27

10:00 pm - 1:10 pmBOS-USM

28h 10m2 stops

3:50 pm - 1:55 pmUSM-BOS

34h 05m2 stops

$1,300Qatar Airways

Find Deal

Thu, Oct 9 - Thu, Nov 20

EVA Air flights from United States to Ko Samui

Our best EVA Air deals on United States to Ko Samui flight tickets

EVA Air

Oct 19

SFO12:45 amSan Francisco

23h 00m

2 stops

USM1:45 pmKo Samui

Oct 28

USM10:00 amKo Samui

20h 00m

2 stops

SFO4:00 pmSan Francisco

$994

Find similar

EVA Air

Oct 20

SFO12:30 pmSan Francisco

29h 45m

2 stops

USM8:15 amKo Samui

Oct 28

USM10:00 amKo Samui

20h 00m

2 stops

SFO4:00 pmSan Francisco

$1,014

Find similar

EVA Air

Aug 31

SFO1:25 amSan Francisco

23h 20m

2 stops

USM2:45 pmKo Samui

Sep 12

USM10:05 amKo Samui

23h 55m

2 stops

SFO8:00 pmSan Francisco

$1,032

Find similar

Singapore Airlines flights from United States to Ko Samui

Our best Singapore Airlines deals on United States to Ko Samui flight tickets

Singapore Airlines

Sep 8

LAX11:55 pmLos Angeles

26h 50m

1 stop

USM4:45 pmKo Samui

Sep 11

USM8:45 amKo Samui

27h 05m

1 stop

LAX9:50 pmLos Angeles

$718

Find similar

Singapore Airlines

Sep 10

LAX11:55 pmLos Angeles

26h 50m

1 stop

USM4:45 pmKo Samui

Sep 26

USM8:45 amKo Samui

27h 05m

1 stop

LAX9:50 pmLos Angeles

$719

Find similar

Singapore Airlines

Oct 22

SFO11:30 amSan Francisco

30h 20m

1 stop

USM7:50 amKo Samui

Nov 11

USM7:25 pmKo Samui

27h 25m

1 stop

SFO7:50 amSan Francisco

$722

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 11/3

9:30 pm-1:05 pm

2 stops48h 35m

Ko Samui

Mon 11/17

1:25 pm-2:56 pm

2 stops40h 31m

$685

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 11/3

11:10 am-7:35 pm

1 stop41h 25m

Ko Samui

Mon 11/17

1:25 pm-2:56 pm

2 stops40h 31m

$696

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 9/8

11:55 pm-4:45 pm

1 stop26h 50m

Ko Samui

Thu 9/11

8:45 am-9:50 pm

1 stop27h 05m

$718

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Wed 9/10

11:55 pm-4:45 pm

1 stop26h 50m

Ko Samui

Fri 9/26

8:45 am-9:50 pm

1 stop27h 05m

$719

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Tue 9/16

12:25 pm-8:15 am

2 stops29h 50m

Ko Samui

Tue 9/30

7:00 am-9:45 am

2 stops40h 45m

$911

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sun 9/14

2:00 pm-8:15 am

2 stops28h 15m

Ko Samui

Sun 9/28

7:10 pm-10:05 am

2 stops28h 55m

$918

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sun 10/19

12:45 am-1:45 pm

2 stops23h 00m

Ko Samui

Tue 10/28

10:00 am-4:00 pm

2 stops20h 00m

$994

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 10/20

12:30 pm-8:15 am

2 stops29h 45m

Ko Samui

Tue 10/28

10:00 am-4:00 pm

2 stops20h 00m

$1,014

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Fri 10/24

10:00 pm-5:30 pm

2 stops32h 30m

Ko Samui

Mon 10/27

6:15 pm-2:55 pm

2 stops31h 40m

$1,226

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Thu 10/9

10:00 pm-1:10 pm

2 stops28h 10m

Ko Samui

Thu 11/20

3:50 pm-1:55 pm

2 stops34h 05m

$1,300

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Ko Samui?

Our data shows that Saturday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $244. Flights from United States to Ko Samui on a Sunday will generally be more expensive and average around $374. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our data shows that the cheapest United States to Ko Samui flights are usually those with departure times in the afternoon. Our users have found flights to Ko Samui in the afternoon for as low as $257. At noon is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $411 per ticket.

Can stopping save me money on United States to Ko Samui flights?

You could potentially save up to 8% on your flight if you consider stops on a United States to Ko Samui flight.

Cheap United States to Ko Samui flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Ko Samui

Best Price Found	$433
Fastest flight time	20h 30m
Direct flights	None
Airports in Ko Samui	1 airport

The best one-way flight to Ko Samui from United States in the past 72 hours is $433. The best round-trip flight deal from United States to Ko Samui found on momondo in the last 72 hours is $685.

The fastest flight from United States to Ko Samui takes 20h 30m

There are no direct flights from United States to Ko Samui. Popular non-direct routes for this connection are San Francisco Airport - Ko Samui Airport, Los Angeles Airport - Ko Samui Airport and New York John F Kennedy Intl Airport - Ko Samui Airport.

There is 1 airport near Ko Samui: Ko Samui (USM)

Search flight deals

When did momondo last update prices for flights from United States to Ko Samui Airport?
Prices for flights from United States to Ko Samui Airport refresh daily.
How many operators does momondo search for flights from United States to Ko Samui Airport?
There are 3 operators available for flights from United States to Ko Samui Airport as of July 2025.
How old do you have to be to fly from United States to Ko Samui Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United States to Ko Samui

Compare and see reviews for airlines that fly from United States to Ko Samui with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $756	Free Cancellation	Rating 8.1 1,338 reviews	Search Singapore Airlines flights
EVA Air	PriceFrom $1,048	Free Cancellation	Rating 8.4 1,220 reviews	Search EVA Air flights
Qatar Airways	PriceFrom $1,584	Free Cancellation	Rating 7.4 3,609 reviews	Search Qatar Airways flights

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

Why should I use momondo to find a flight deal from United States to Ko Samui?

It is quick and easy to find United States to Ko Samui flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ko Samui that suits you.

Can I find flights from United States to Ko Samui with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for United States to Ko Samui flights to just show those with flexible booking policies.

How can momondo help me find flights from United States to Ko Samui?

Once all potential United States to Ko Samui flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from United States to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.