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

Singapore Airlines is the most popular carrier operating from California to Ko Samui

How long does it take to fly to Ko Samui?

Flight times vary depending on what airport in California you fly out of and what airport in Ko Samui you fly into. For example, flying from Los Angeles to Ko Samui takes 21h 10m on average. On the other hand, flying from San Francisco to Ko Samui takes 27h 30m 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 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 2026, there are 2 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.

$395 Cheap Flights from California to Ko Samui in 2026

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Find the cheapest flights from California to Ko Samui

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:30 pm - 5:20 pm

LAX

USM

27h 50m

1 stop

8:40 am - 9:20 pm

USM

LAX

26h 40m

1 stop

$708Singapore Airlines

Mon, May 11 - Mon, Jun 8

2:20 pm - 7:45 am

LAX

USM

27h 25m

2 stops

8:40 am - 9:20 pm

USM

LAX

26h 40m

1 stop

$781Singapore Airlines

Mon, May 11 - Mon, Jun 8

12:35 am - 2:45 pm

LAX

USM

24h 10m

2 stops

2:00 pm - 9:10 pm

USM

LAX

21h 10m

2 stops

$873Multiple Airlines

Wed, Apr 15 - Thu, Apr 30

12:50 am - 8:50 pm

SFO

USM

30h 00m

2 stops

9:15 am - 8:30 pm

USM

SFO

25h 15m

2 stops

$873Multiple Airlines

Sat, Apr 11 - Mon, Apr 20

1:15 am - 3:45 pm

SFO

USM

24h 30m

2 stops

9:00 pm - 6:45 am

USM

SFO

23h 45m

2 stops

$975EVA Air

Sat, May 9 - Sun, May 31

12:00 pm - 7:45 am

SFO

USM

29h 45m

2 stops

10:05 am - 8:00 pm

USM

SFO

23h 55m

2 stops

$978EVA Air

Thu, Mar 26 - Thu, Apr 2

11:39 am - 7:35 pm

LAS

USM

41h 56m

2 stops

11:40 am - 9:00 pm

USM

LAS

23h 20m

2 stops

$1,476Cathay Pacific

Thu, Mar 19 - Thu, Mar 26

7:40 am - 7:35 pm

SAN

USM

45h 55m

2 stops

11:40 am - 8:14 am

USM

SAN

34h 34m

2 stops

$1,683Cathay Pacific

Fri, Mar 20 - Fri, Mar 27

4:45 pm - 9:10 pm

SAN

USM

38h 25m

2 stops

4:25 pm - 5:50 pm

USM

SAN

39h 25m

2 stops

$2,171British Airways

Wed, May 6 - Sun, May 10

7:40 pm - 9:10 pm

SAN

USM

35h 30m

2 stops

1:30 pm - 2:55 pm

USM

SAN

39h 25m

2 stops

$2,172British Airways

Wed, May 6 - Sun, May 10

British Airways flights from California to Ko Samui

Our best British Airways deals on California to Ko Samui flight tickets

British Airways

Apr 8

LAS5:20 pmLas Vegas Harry Reid Intl

34h 55m

2 stops

USM6:15 pmKo Samui

Apr 20

USM1:30 pmKo Samui

44h 30m

2 stops

LAS8:00 pmLas Vegas Harry Reid Intl

$2,160

British Airways

May 6

SAN4:45 pmSan Diego

38h 25m

2 stops

USM9:10 pmKo Samui

May 10

USM4:25 pmKo Samui

39h 25m

2 stops

SAN5:50 pmSan Diego

$2,171

British Airways

Feb 14

SFO5:30 pmSan Francisco

57h 45m

2 stops

USM6:15 pmKo Samui

Feb 22

USM1:25 pmKo Samui

40h 35m

2 stops

SFO3:00 pmSan Francisco

$8,269

Qatar Airways flights from California to Ko Samui

Our best Qatar Airways deals on California to Ko Samui flight tickets

Qatar Airways

Mar 11

LAX4:10 pmLos Angeles

36h 15m

2 stops

USM6:25 pmKo Samui

Mar 15

USM4:30 pmKo Samui

35h 20m

2 stops

LAX1:50 pmLos Angeles

$1,490

Qatar Airways

Mar 18

SFO4:00 pmSan Francisco

31h 50m

2 stops

USM1:50 pmKo Samui

Mar 22

USM11:40 amKo Samui

40h 00m

2 stops

SFO1:40 pmSan Francisco

$1,499

Qatar Airways

Apr 9

LAS11:51 amLas Vegas Harry Reid Intl

33h 24m

3 stops

USM11:15 amKo Samui

Apr 21

USM8:50 pmKo Samui

34h 38m

3 stops

LAS5:28 pmLas Vegas Harry Reid Intl

$1,924

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 5/11

11:30 pm-5:20 pm

1 stop27h 50m

Ko Samui

Mon 6/8

8:40 am-9:20 pm

1 stop26h 40m

$708

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 5/11

2:20 pm-7:45 am

2 stops27h 25m

Ko Samui

Mon 6/8

8:40 am-9:20 pm

1 stop26h 40m

$781

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Wed 4/15

12:35 am-2:45 pm

2 stops24h 10m

Ko Samui

Thu 4/30

2:00 pm-9:10 pm

2 stops21h 10m

$873

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sat 4/11

12:50 am-8:50 pm

2 stops30h 00m

Ko Samui

Mon 4/20

9:15 am-8:30 pm

2 stops25h 15m

$873

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sat 5/9

1:15 am-3:45 pm

2 stops24h 30m

Ko Samui

Sun 5/31

9:00 pm-6:45 am

2 stops23h 45m

$975

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Thu 3/26

12:00 pm-7:45 am

2 stops29h 45m

Ko Samui

Thu 4/2

10:05 am-8:00 pm

2 stops23h 55m

$978

Las VegasKo Samui

LAS - USM

LASUSM

Las Vegas Harry Reid Intl

Thu 3/19

11:39 am-7:35 pm

2 stops41h 56m

Ko Samui

Thu 3/26

11:40 am-9:00 pm

2 stops23h 20m

$1,476

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Fri 3/20

7:40 am-7:35 pm

2 stops45h 55m

Ko Samui

Fri 3/27

11:40 am-8:14 am

2 stops34h 34m

$1,683

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Wed 5/6

4:45 pm-9:10 pm

2 stops38h 25m

Ko Samui

Sun 5/10

4:25 pm-5:50 pm

2 stops39h 25m

$2,171

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Wed 5/6

7:40 pm-9:10 pm

2 stops35h 30m

Ko Samui

Sun 5/10

1:30 pm-2:55 pm

2 stops39h 25m

$2,172

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 California 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 month to fly to Ko Samui?

In general, September is the cheapest month to fly from California to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $850. If you don’t want to visit Ko Samui in September, then you should wait until March to fly from California, when ticket prices are also cheap, with an average price of $896.

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

Our data shows that Tuesday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $278. Flights from California to Ko Samui on a Friday will generally be more expensive and average around $444. 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 California to Ko Samui flights are usually those with departure times in the evening. Our users have found flights to Ko Samui in the evening for as low as $284. In the morning is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $476 per ticket.

Can stopping save me money on California to Ko Samui flights?

You could potentially save up to 27% on your flight if you consider stops on a California to Ko Samui flight.

Cheap California to Ko Samui flight deals and tips

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

Fastest flight time	26h 50m
Direct flights	None

The fastest flight from California to Ko Samui takes 26h 50m

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

Search flight deals

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 2026, there are 2 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 Ko Samui

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

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $756	Free Cancellation	Rating 8.2 1,443 reviews		Search Singapore Airlines flights
EVA Air	PriceFrom $967	Free Cancellation	Rating 8.4 1,344 reviews		Search EVA Air flights

Ko Tao

Ko Pha Ngan

Khanom

Why use momondo?

Why should I use momondo to find a flight deal from California to Ko 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 Ko Samui from California.

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

Flights from California to Ko 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 Ko Samui?

momondo helps you find the best flight between California and Ko 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 Ko Samui right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ko 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.

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.

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Cheap flights from California to Ko Samui from $395

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Ko Samui departing on 4/24. 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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Find the cheapest flights from California to Ko Samui

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British Airways flights from California to Ko Samui

Our best British Airways deals on California to Ko Samui flight tickets

Qatar Airways flights from California to Ko Samui

Our best Qatar Airways deals on California to Ko Samui flight tickets

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See travel insights to Ko Samui from

How to get the cheapest flight ticket from California to Ko Samui

What is the cheapest month to fly to Ko Samui?

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

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

Can stopping save me money on California to Ko Samui flights?

You could potentially save up to 27% on your flight if you consider stops on a California to Ko Samui flight.

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

Singapore Airlines is the most popular carrier operating from California to Ko Samui

How long does it take to fly to Ko Samui?

Cheap California to Ko Samui flight deals and tips

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

Fastest flight time

Direct flights

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

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

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

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

Best airlines flying from California to Ko Samui

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

Traveling to a place near Ko Samui?

Why use momondo?

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

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

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

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

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

Airports servicing Thailand

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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Popular flights according to clicks in the last 7 days on momondo

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