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

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

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

Historically, on average around 18% 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 145 minutes.

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

Singapore Airlines, Cathay Pacific, and Emirates 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 Boston to Ko Samui takes 23h 10m on average. On the other hand, flying from New York to Ko Samui takes 23h 20m 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 airlines fly to Ko Samui?

Singapore Airlines, EVA Air and Etihad 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 80% 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.

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

Saturday 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.

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 November 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.

$440 Cheap Flights from the United States to Ko Samui in 2026/27

Discover deals from 900+ travel sites with momondo.

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 - 10:55 amLAX Los Angeles-USM Ko Samui

21h 50m1 stop Singapore Changi

8:55 am - 7:55 pmUSM Ko Samui-LAX Los Angeles

26h 00m1 stop Singapore Changi

$721Singapore Airlines

Fri, Nov 27 - Mon, Dec 7

9:40 am - 8:00 amSFO San Francisco-USM Ko Samui

31h 20m1 stop Singapore Changi

8:55 am - 7:50 amUSM Ko Samui-SFO San Francisco

37h 55m1 stop Singapore Changi

$807Singapore Airlines

Wed, Jan 27 - Mon, Feb 22

10:05 pm - 5:10 pmLAX Los Angeles-USM Ko Samui

28h 05m1 stop Singapore Changi

8:55 am - 7:55 pmUSM Ko Samui-LAX Los Angeles

26h 00m1 stop Singapore Changi

$807Singapore Airlines

Sun, Jan 24 - Tue, Feb 2

10:55 pm - 2:55 pmSFO San Francisco-USM Ko Samui

25h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

4:30 pm - 9:15 pmUSM Ko Samui-SFO San Francisco

19h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$819Multiple Airlines

Mon, Feb 22 - Tue, Mar 9

10:55 pm - 2:55 pmSFO San Francisco-USM Ko Samui

25h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

4:30 pm - 9:15 pmUSM Ko Samui-SFO San Francisco

19h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$819Multiple Airlines

Sun, Feb 21 - Mon, Mar 1

10:55 pm - 2:55 pmSFO San Francisco-USM Ko Samui

25h 00m2 stops Hong Kong Intl Bangkok Suvarnabhumi

4:30 pm - 9:15 pmUSM Ko Samui-SFO San Francisco

19h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$819Multiple Airlines

Mon, Feb 22 - Mon, Mar 1

9:40 am - 8:00 amSFO San Francisco-USM Ko Samui

31h 20m1 stop Singapore Changi

8:55 am - 7:50 amUSM Ko Samui-SFO San Francisco

37h 55m1 stop Singapore Changi

$850Singapore Airlines

Wed, Jan 27 - Mon, Feb 22

11:50 pm - 2:55 pmSFO San Francisco-USM Ko Samui

24h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

2:05 pm - 6:40 pmUSM Ko Samui-SFO San Francisco

19h 35m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

$1,197EVA Air

Mon, Feb 22 - Tue, Mar 2

11:50 pm - 2:55 pmSFO San Francisco-USM Ko Samui

24h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

8:30 pm - 6:40 amUSM Ko Samui-SFO San Francisco

25h 10m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

$1,199EVA Air

Wed, Feb 24 - Mon, Mar 1

11:50 pm - 2:55 pmSFO San Francisco-USM Ko Samui

24h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

2:05 pm - 6:40 pmUSM Ko Samui-SFO San Francisco

19h 35m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

$1,199EVA Air

Wed, Feb 24 - Thu, Mar 4

Recent last minute flight deals from the United States to Ko Samui

Enter your travel dates to find the best prices.

5:59 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

34h 36m2 stops Los Angeles Hong Kong Intl

11:40 am - 12:57 pmUSM Ko Samui-SEA Seattle/Tacoma Intl

40h 17m2 stops Hong Kong Intl Vancouver Intl

$959Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

2:59 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

37h 36m2 stops Los Angeles Hong Kong Intl

2:25 pm - 8:45 amUSM Ko Samui-SEA Seattle/Tacoma Intl

33h 20m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$959Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

4:59 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

35h 36m2 stops Los Angeles Hong Kong Intl

11:40 am - 8:45 amUSM Ko Samui-SEA Seattle/Tacoma Intl

36h 05m1 stop Hong Kong Intl

$959Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

4:59 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

35h 36m2 stops Los Angeles Hong Kong Intl

11:40 am - 8:45 amUSM Ko Samui-SEA Seattle/Tacoma Intl

36h 05m1 stop Hong Kong Intl

$978Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

3:59 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

36h 36m2 stops Los Angeles Hong Kong Intl

11:40 am - 9:12 pmUSM Ko Samui-SEA Seattle/Tacoma Intl

24h 32m2 stops Hong Kong Intl Los Angeles

$988Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

4:59 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

35h 36m2 stops Los Angeles Hong Kong Intl

6:00 pm - 2:28 pmUSM Ko Samui-SEA Seattle/Tacoma Intl

35h 28m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

$1,038Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

12:00 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

40h 35m2 stops Los Angeles Hong Kong Intl

6:00 pm - 2:28 pmUSM Ko Samui-SEA Seattle/Tacoma Intl

35h 28m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

$1,038Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

12:00 pm - 7:35 pmSEA Seattle/Tacoma Intl-USM Ko Samui

40h 35m2 stops Los Angeles Hong Kong Intl

6:00 pm - 2:28 pmUSM Ko Samui-SEA Seattle/Tacoma Intl

35h 28m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

$1,042Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

10:20 am - 10:40 amJFK New York John F Kennedy Intl-USM Ko Samui

36h 20m2 stops Doha Hamad Intl Phuket City

12:30 pm - 8:00 amUSM Ko Samui-JFK New York John F Kennedy Intl

31h 30m2 stops Phuket City Doha Hamad Intl

$1,355Qatar Airways

Thu, Nov 5 - Thu, Nov 19

10:20 am - 10:40 amJFK New York John F Kennedy Intl-USM Ko Samui

36h 20m2 stops Doha Hamad Intl Phuket City

3:05 pm - 8:00 amUSM Ko Samui-JFK New York John F Kennedy Intl

28h 55m2 stops Phuket City Doha Hamad Intl

$1,355Qatar Airways

Thu, Nov 5 - Tue, Nov 24

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Singapore Airlines flights from United States to Ko Samui

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

Singapore Airlines

Nov 27

LAX10:05 pmLos Angeles

21h 50m

1 stop

USM10:55 amKo Samui

Dec 7

USM8:55 amKo Samui

26h 00m

1 stop

LAX7:55 pmLos Angeles

$721

Singapore Airlines

Jan 27

SFO9:40 amSan Francisco

31h 20m

1 stop

USM8:00 amKo Samui

Feb 22

USM8:55 amKo Samui

37h 55m

1 stop

SFO7:50 amSan Francisco

$807

Singapore Airlines

Mar 1

LAX10:05 pmLos Angeles

29h 50m

1 stop

USM6:55 pmKo Samui

Mar 18

USM8:55 amKo Samui

26h 00m

1 stop

LAX8:55 pmLos Angeles

$850

Cathay Pacific flights from United States to Ko Samui

Our best Cathay Pacific deals on United States to Ko Samui flight tickets

Cathay Pacific

Jan 21

LAX10:45 pmLos Angeles

29h 50m

1 stop

USM7:35 pmKo Samui

Jan 26

USM11:40 amKo Samui

19h 50m

1 stop

LAX4:30 pmLos Angeles

$861

Cathay Pacific

Feb 21

SFO10:55 pmSan Francisco

41h 15m

2 stops

USM7:10 amKo Samui

Mar 2

USM11:40 amKo Samui

24h 35m

1 stop

SFO9:15 pmSan Francisco

$867

Cathay Pacific

Mar 4

SFO10:55 pmSan Francisco

25h 00m

2 stops

USM2:55 pmKo Samui

Mar 13

USM11:40 amKo Samui

24h 35m

1 stop

SFO9:15 pmSan Francisco

$910

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesKo Samui

LAX Los Angeles - USM Ko Samui

LAXUSM

Los Angeles

Fri 11/27

10:05 pm-10:55 am

1 stop21h 50m

Ko Samui

Mon 12/7

8:55 am-7:55 pm

1 stop26h 00m

$721

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 1/27

9:40 am-8:00 am

1 stop31h 20m

Ko Samui

Mon 2/22

8:55 am-7:50 am

1 stop37h 55m

$807

Los AngelesKo Samui

LAX Los Angeles - USM Ko Samui

LAXUSM

Los Angeles

Sun 1/24

10:05 pm-5:10 pm

1 stop28h 05m

Ko Samui

Tue 2/2

8:55 am-7:55 pm

1 stop26h 00m

$807

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 2/22

10:55 pm-2:55 pm

2 stops25h 00m

Ko Samui

Tue 3/9

4:30 pm-9:15 pm

2 stops19h 45m

$819

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Sun 2/21

10:55 pm-2:55 pm

2 stops25h 00m

Ko Samui

Mon 3/1

4:30 pm-9:15 pm

2 stops19h 45m

$819

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 2/22

10:55 pm-2:55 pm

2 stops25h 00m

Ko Samui

Mon 3/1

4:30 pm-9:15 pm

2 stops19h 45m

$819

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 1/27

9:40 am-8:00 am

1 stop31h 20m

Ko Samui

Mon 2/22

8:55 am-7:50 am

1 stop37h 55m

$850

Quickest round-trip

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 2/22

11:50 pm-2:55 pm

2 stops24h 05m

Ko Samui

Tue 3/2

2:05 pm-6:40 pm

2 stops19h 35m

$1,197

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 2/24

11:50 pm-2:55 pm

2 stops24h 05m

Ko Samui

Mon 3/1

8:30 pm-6:40 am

2 stops25h 10m

$1,199

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 2/24

11:50 pm-2:55 pm

2 stops24h 05m

Ko Samui

Thu 3/4

2:05 pm-6:40 pm

2 stops19h 35m

$1,199

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, November 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 $1,001. If you don’t want to visit Ko Samui in November, then you should wait until March to fly from United States, when ticket prices are also cheap, with an average price of $1,004.

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

You could potentially save up to 17% 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	$440
Fastest flight time	23h 10m
Direct flights	None

The best one-way flight to Ko Samui from United States in the past 72 hours is $440. The best round-trip flight deal from United States to Ko Samui found on momondo in the last 72 hours is $721.

The fastest flight from United States to Ko Samui takes 23h 10m

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 November 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 $813	Free Cancellation	Rating 8.2 1,635 reviews	Search Singapore Airlines flights
EVA Air	PriceFrom $940	Free Cancellation	Rating 8.5 1,552 reviews	Search EVA Air flights
Etihad Airways	PriceFrom $1,377	Free Cancellation	Rating 7.3 1,557 reviews	Search Etihad 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 $440

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 2/14. 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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Singapore Airlines flights from United States to Ko Samui

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

Cathay Pacific flights from United States to Ko Samui

Our best Cathay Pacific deals on United States to Ko Samui flight tickets

momondo Fare Finder

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

See travel insights to Ko Samui from

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

Best Price Found

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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Fly your favorite airline to Ko Samui

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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