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

EVA Air, Singapore Airlines, and Cathay Pacific are the most popular carriers operating from California to Ko Samui

How long does it take to fly to Koh Samui?

Flight times vary depending on what airport in California you fly out of and what airport in Koh Samui you fly into. For example, flying from San Francisco to Koh Samui takes 22h 20m on average. On the other hand, flying from Los Angeles to Koh Samui takes 24h 35m 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 airlines fly to Koh Samui?

EVA Air, Singapore Airlines and Cathay Pacific are the top three most popular airlines that fly to Koh Samui from California according to our data. EVA Air is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Koh Samui. Keep in mind that there are 3 different airlines that fly to Koh Samui on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from California to Ko Samui Airport were last updated today.

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

As of February 2025, there are 3 operators available to choose from for flights from California to Ko Samui Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Ko Samui Airport.

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

The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$551 Cheap Flights from California to Koh Samui in 2025

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Find the cheapest flights from California to Koh Samui

Round-trip

One-way

Last minute

Cheap round-trip flights

These are some of the best round-trip flight deals from California to Koh Samui that have been recently found on momondo from popular airlines, departing in the coming months.

10:40 am - 8:00 amSFO-USM

31h 20m1 stop

8:45 am - 9:40 amUSM-SFO

38h 55m1 stop

$869Singapore Airlines

Find Deal

Sun, Mar 23 - Sun, Mar 30

11:05 pm - 6:30 pmLAX-USM

29h 25m1 stop

8:55 am - 7:00 pmUSM-LAX

24h 05m1 stop

$935Singapore Airlines

Find Deal

Wed, Mar 12 - Wed, Mar 26

12:30 pm - 7:20 amLAX-USM

28h 50m2 stops

7:00 am - 9:40 amUSM-LAX

40h 40m2 stops

$997

Find Deal

Wed, May 7 - Fri, May 16

12:10 am - 3:35 pmSFO-USM

25h 25m2 stops

2:00 pm - 8:00 pmUSM-SFO

20h 00m2 stops

$1,005EVA Air

Find Deal

Tue, Mar 25 - Tue, Apr 29

12:35 am - 8:45 pmSFO-USM

30h 10m3 stops

8:00 am - 8:30 pmUSM-SFO

26h 30m3 stops

$1,032

Find Deal

Mon, Mar 24 - Mon, Apr 28

10:40 am - 7:40 amLAX-USM

30h 00m2 stops

9:00 pm - 7:10 amUSM-LAX

24h 10m2 stops

$1,062EVA Air

Find Deal

Wed, Mar 5 - Mon, Mar 31

12:35 pm - 8:30 pmLAX-USM

41h 55m3 stops

2:35 pm - 8:45 pmUSM-LAX

20h 10m2 stops

$1,574China Airlines

Find Deal

Wed, May 7 - Fri, May 16

12:20 am - 7:35 pmLAX-USM

29h 15m1 stop

11:40 am - 9:55 pmUSM-LAX

24h 15m1 stop

$1,605Cathay Pacific

Find Deal

Tue, Mar 11 - Wed, Mar 26

12:20 am - 7:35 pmLAX-USM

29h 15m1 stop

11:40 am - 9:55 pmUSM-LAX

24h 15m1 stop

$1,609Cathay Pacific

Find Deal

Sun, Mar 9 - Mon, Mar 24

1:05 am - 7:20 amSFO-USM

40h 15m2 stops

2:35 pm - 8:30 pmUSM-SFO

19h 55m2 stops

$2,158China Airlines

Find Deal

Wed, Jul 16 - Thu, Jul 31

Cathay Pacific flights from California to Koh Samui

Our best Cathay Pacific deals on California to Koh Samui flight tickets

Cathay Pacific

Mar 11

LAX12:20 amLos Angeles

29h 15m

1 stop

USM7:35 pmKo Samui

Mar 26

USM11:40 amKo Samui

24h 15m

1 stop

LAX9:55 pmLos Angeles

$1,605

Find similar

Cathay Pacific

Mar 9

LAX12:20 amLos Angeles

29h 15m

1 stop

USM7:35 pmKo Samui

Mar 24

USM11:40 amKo Samui

24h 15m

1 stop

LAX9:55 pmLos Angeles

$1,609

Find similar

Cathay Pacific

Mar 13

LAX12:20 amLos Angeles

29h 15m

1 stop

USM7:35 pmKo Samui

Mar 21

USM11:40 amKo Samui

24h 15m

1 stop

LAX9:55 pmLos Angeles

$1,616

Find similar

EVA Air flights from California to Koh Samui

Our best EVA Air deals on California to Koh Samui flight tickets

EVA Air

Mar 25

SFO12:10 amSan Francisco

25h 25m

2 stops

USM3:35 pmKo Samui

Apr 29

USM2:00 pmKo Samui

20h 00m

2 stops

SFO8:00 pmSan Francisco

$1,005

Find similar

EVA Air

Mar 5

LAX10:40 amLos Angeles

30h 00m

2 stops

USM7:40 amKo Samui

Mar 31

USM9:00 pmKo Samui

24h 10m

2 stops

LAX7:10 amLos Angeles

$1,062

Find similar

EVA Air

Mar 25

SFO12:10 amSan Francisco

25h 30m

2 stops

USM3:40 pmKo Samui

Apr 27

USM9:30 pmKo Samui

23h 15m

2 stops

SFO6:45 amSan Francisco

$1,063

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How to get the cheapest flight ticket from California to Koh 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 month to fly to Koh Samui?

If you are unable to visit Koh Samui during the month of March, then departing from California during the month October is also very affordable. Most momondo users find prices during this month for around $1,151.

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

According to our data, Tuesday is the cheapest day to fly to Koh Samui from California. The lowest ticket price found for a Tuesday departure recently was $263. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Monday is the most expensive day to depart from California because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $416.

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

According to our data, the cheapest time of day to fly to Koh Samui is in the evening. momondo users have found flights departing from California to Koh Samui in the evening for as low as $270. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $489. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap California to Koh Samui flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Koh Samui

Best Price Found	$551
Fastest flight time	19h 45m
Direct flights	None
Airports in Koh Samui	1 airport

The best one-way flight to Koh Samui from California in the past 72 hours is $551. The best round-trip flight deal from California to Koh Samui found on momondo in the last 72 hours is $869.

The fastest flight from California to Koh Samui takes 19h 45m

There are no direct flights from California to Koh Samui. Popular non-direct routes for this connection are San Francisco Airport - Ko Samui Airport, Los Angeles Airport - Ko Samui Airport and Las Vegas Harry Reid Intl Airport - Ko Samui Airport.

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

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When did momondo last update prices for flights from California to Ko Samui Airport?
Prices for flights from California to Ko Samui Airport were last updated today.
How many operators does momondo search for flights from California to Ko Samui Airport?
As of February 2025, there are 3 operators available to choose from for flights from California to Ko Samui Airport.
How old do you have to be to fly from California to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from California to Koh Samui

Compare and see reviews for airlines that fly from California to Koh Samui with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $910	Free Cancellation	Rating 8.1 1,310 reviews	Search Singapore Airlines flights
EVA Air	PriceFrom $1,052	Free Cancellation	Rating 8.4 1,216 reviews	Search EVA Air flights
Cathay Pacific	PriceFrom $1,231	Free Cancellation	Rating 7.5 823 reviews	Search Cathay Pacific flights

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

Why should I use momondo to find a flight deal from California to Koh Samui?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Koh Samui from California.

Can I find flights from California to Koh Samui with flexible booking policies on momondo?

Flights from California to Koh Samui with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from California to Koh Samui?

momondo helps you find the best flight between California and Koh Samui by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Koh Samui from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.