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

EVA Air, Qatar Airways, and Cathay Pacific are the most popular carriers operating from United States to Ko Samui

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 19h 55m on average. On the other hand, flying from New York 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.

What is the most punctual flight time for the United States to Ko Samui flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What airlines fly to Ko Samui?

Singapore Airlines, Qatar Airways and EVA Air 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 57% of people opting to fly with this airline when traveling to Ko Samui. Keep in mind that there are 4 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.

Which airline has the best punctuality record on the United States to Ko Samui flights?

According to our data, Alaska Airlines have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

How often are flights from the United States to Ko Samui delayed?

Historically, on average around 20% of flights between United States and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 122 minutes.

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 2 operators available for flights from United States to Ko Samui Airport as of May 2026.

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.

$606 Cheap Flights from the United States to Ko Samui in 2026

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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

Enter your travel dates to find the best prices.

10:05 pm - 6:50 pm

LAX

USM

29h 45m

1 stop

8:55 am - 6:10 pm

USM

LAX

24h 15m

1 stop

$787Singapore Airlines

Sun, Nov 1 - Fri, Nov 13

11:30 pm - 6:50 pm

LAX

USM

29h 20m

1 stop

8:55 am - 7:10 pm

USM

LAX

24h 15m

1 stop

$810Singapore Airlines

Thu, Oct 1 - Fri, Oct 30

11:30 pm - 5:20 pm

LAX

USM

27h 50m

1 stop

6:15 pm - 7:40 pm

USM

LAX

39h 25m

1 stop

$813Singapore Airlines

Fri, Sep 18 - Thu, Sep 24

10:20 pm - 11:05 am

JFK

USM

25h 45m

2 stops

5:50 pm - 8:35 am

USM

JFK

25h 45m

2 stops

$1,027Multiple Airlines

Wed, Sep 16 - Wed, Sep 23

3:45 pm - 7:10 am

JFK

USM

28h 25m

2 stops

5:25 pm - 8:35 am

USM

JFK

26h 10m

2 stops

$1,034Multiple Airlines

Tue, Sep 15 - Sun, Sep 20

1:10 am - 3:35 pm

SEA

USM

24h 25m

2 stops

10:00 am - 5:30 pm

USM

SEA

22h 30m

2 stops

$1,170EVA Air

Tue, Oct 27 - Tue, Nov 10

1:10 am - 3:40 pm

SEA

USM

24h 30m

2 stops

10:00 am - 5:30 pm

USM

SEA

22h 30m

2 stops

$1,180EVA Air

Tue, Oct 27 - Tue, Nov 10

9:00 pm - 2:40 pm

IAD

USM

30h 40m

2 stops

11:25 am - 8:45 am

USM

IAD

32h 20m

2 stops

$1,410Qatar Airways

Sun, Sep 13 - Thu, Sep 17

3:10 pm - 8:25 am

IAD

USM

30h 15m

2 stops

1:30 pm - 9:45 am

USM

IAD

31h 15m

2 stops

$1,628Etihad Airways

Fri, Aug 21 - Sun, Aug 30

6:45 pm - 11:05 am

RDU

USM

29h 20m

3 stops

5:50 pm - 3:55 pm

USM

RDU

33h 05m

3 stops

$1,729Qatar Airways

Mon, Oct 12 - Fri, Oct 16

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 27

SEA1:10 amSeattle/Tacoma Intl

24h 25m

2 stops

USM3:35 pmKo Samui

Nov 10

USM10:00 amKo Samui

22h 30m

2 stops

SEA5:30 pmSeattle/Tacoma Intl

$1,170

EVA Air

Oct 27

SEA1:10 amSeattle/Tacoma Intl

24h 30m

2 stops

USM3:40 pmKo Samui

Nov 10

USM10:00 amKo Samui

22h 30m

2 stops

SEA5:30 pmSeattle/Tacoma Intl

$1,180

EVA Air

Aug 19

DFW10:50 pmDallas/Fort Worth

28h 20m

2 stops

USM3:10 pmKo Samui

Aug 26

USM8:45 amKo Samui

23h 35m

2 stops

DFW8:20 pmDallas/Fort Worth

$1,187

Qatar Airways flights from United States to Ko Samui

Our best Qatar Airways deals on United States to Ko Samui flight tickets

Qatar Airways

Oct 1

LAX4:20 pmLos Angeles

28h 10m

2 stops

USM10:30 amKo Samui

Oct 30

USM6:15 pmKo Samui

33h 35m

2 stops

LAX1:50 pmLos Angeles

$1,219

Qatar Airways

Oct 22

LAX4:20 pmLos Angeles

29h 35m

2 stops

USM11:55 amKo Samui

Oct 26

USM6:15 pmKo Samui

33h 35m

2 stops

LAX1:50 pmLos Angeles

$1,290

Qatar Airways

Jul 1

LAX4:20 pmLos Angeles

28h 10m

2 stops

USM10:30 amKo Samui

Jul 7

USM5:55 pmKo Samui

34h 05m

2 stops

LAX2:00 pmLos Angeles

$1,294

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 11/1

10:05 pm-6:50 pm

1 stop29h 45m

Ko Samui

Fri 11/13

8:55 am-6:10 pm

1 stop24h 15m

$787

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Thu 10/1

11:30 pm-6:50 pm

1 stop29h 20m

Ko Samui

Fri 10/30

8:55 am-7:10 pm

1 stop24h 15m

$810

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 9/18

11:30 pm-5:20 pm

1 stop27h 50m

Ko Samui

Thu 9/24

6:15 pm-7:40 pm

1 stop39h 25m

$813

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Wed 9/16

10:20 pm-11:05 am

2 stops25h 45m

Ko Samui

Wed 9/23

5:50 pm-8:35 am

2 stops25h 45m

$1,027

New YorkKo Samui

JFK - USM

JFKUSM

New York John F Kennedy Intl

Tue 9/15

3:45 pm-7:10 am

2 stops28h 25m

Ko Samui

Sun 9/20

5:25 pm-8:35 am

2 stops26h 10m

$1,034

Quickest round-trip

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Tue 10/27

1:10 am-3:35 pm

2 stops24h 25m

Ko Samui

Tue 11/10

10:00 am-5:30 pm

2 stops22h 30m

$1,170

SeattleKo Samui

SEA - USM

SEAUSM

Seattle/Tacoma Intl

Tue 10/27

1:10 am-3:40 pm

2 stops24h 30m

Ko Samui

Tue 11/10

10:00 am-5:30 pm

2 stops22h 30m

$1,180

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sun 9/13

9:00 pm-2:40 pm

2 stops30h 40m

Ko Samui

Thu 9/17

11:25 am-8:45 am

2 stops32h 20m

$1,410

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Fri 8/21

3:10 pm-8:25 am

2 stops30h 15m

Ko Samui

Sun 8/30

1:30 pm-9:45 am

2 stops31h 15m

$1,628

RaleighKo Samui

RDU - USM

RDUUSM

Raleigh-Durham

Mon 10/12

6:45 pm-11:05 am

3 stops29h 20m

Ko Samui

Fri 10/16

5:50 pm-3:55 pm

3 stops33h 05m

$1,729

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

Delays

Other information

What is the cheapest month to fly to Ko Samui?

In general, September is the cheapest month to fly from United States to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $686. If you don’t want to visit Ko Samui in September, then you should wait until November to fly from United States, when ticket prices are also cheap, with an average price of $730.

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

You could potentially save up to 14% 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

Fastest flight time	19h 55m
Direct flights	None

The fastest flight from United States to Ko Samui takes 19h 55m

There are no direct flights from United States to Ko Samui. There are no popular flight routes from United States to Ko Samui.

Search flight deals

Frequently asked questions about flying from the United States to Ko Samui

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 2 operators available for flights from United States to Ko Samui Airport as of May 2026.
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 $753	Free Cancellation	Rating 8.2 1,510 reviews	Search Singapore Airlines flights
EVA Air	PriceFrom $1,001	Free Cancellation	Rating 8.5 1,444 reviews	Search EVA Air flights
Etihad Airways	PriceFrom $1,377	Free Cancellation	Rating 7.3 1,434 reviews	Search Etihad Airways flights
Qatar Airways	PriceFrom $1,813	Free Cancellation	Rating 7.4 3,728 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.

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Cheap flights from the United States to Ko Samui from $491

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Ko Samui departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

What is the cheapest month to fly to Ko Samui?

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

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

What airlines fly to Ko Samui?

How often are flights from the United States to Ko Samui delayed?

What is the most punctual flight time for the United States to Ko Samui flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on the United States to Ko Samui flights?

How long does it take to fly to Ko Samui?

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

Fastest flight time

Direct flights

Frequently asked questions about flying from the United States to Ko Samui

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

Traveling to a place near Ko Samui?

Why use momondo?

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ko Samui

List of cabin classes available on flights landing in Ko Samui. Availability may vary depending on flight origin and airline.

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