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

EVA Air and Japan Airlines are the most popular carriers 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 27h 15m on average. On the other hand, flying from San Francisco to Ko Samui takes 28h 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 May 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.

$777 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 - 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

11:45 am - 7:45 am

SFO

USM

30h 00m

1 stop

6:15 pm - 9:50 am

USM

SFO

29h 35m

1 stop

$872Singapore Airlines

Mon, Sep 7 - Mon, Sep 14

12:25 pm - 8:35 am

SFO

USM

30h 10m

2 stops

7:50 am - 10:05 am

USM

SFO

40h 15m

2 stops

$1,095Japan Airlines

Thu, Sep 3 - Wed, Sep 9

12:25 pm - 8:35 am

SFO

USM

30h 10m

2 stops

6:00 am - 10:05 am

USM

SFO

42h 05m

2 stops

$1,104Japan Airlines

Mon, Sep 7 - Mon, Sep 14

12:30 am - 3:10 pm

SFO

USM

24h 40m

2 stops

6:00 am - 9:10 pm

USM

SFO

29h 10m

2 stops

$1,105Multiple Airlines

Wed, Sep 9 - Mon, Sep 21

12:05 am - 5:20 pm

LAX

USM

27h 15m

1 stop

1:30 pm - 10:10 pm

USM

LAX

22h 40m

1 stop

$1,114Multiple Airlines

Sat, Aug 22 - Sun, Aug 30

6:22 am - 9:20 am

OAK

USM

36h 58m

3 stops

5:55 pm - 7:33 pm

USM

OAK

39h 38m

3 stops

$2,153Qatar Airways

Mon, Jun 22 - Mon, Jun 29

6:22 am - 10:30 am

OAK

USM

38h 08m

3 stops

5:55 pm - 7:33 pm

USM

OAK

39h 38m

3 stops

$2,181Qatar Airways

Mon, Jul 27 - Mon, Aug 3

7:00 pm - 9:05 pm

SAN

USM

36h 05m

2 stops

4:25 pm - 4:10 pm

USM

SAN

38h 45m

2 stops

$2,224British Airways

Fri, Oct 30 - Tue, Nov 3

Singapore Airlines flights from California to Ko Samui

Our best Singapore Airlines deals on California to Ko Samui flight tickets

Singapore Airlines

Oct 1

LAX11:30 pmLos Angeles

29h 20m

1 stop

USM6:50 pmKo Samui

Oct 30

USM8:55 amKo Samui

24h 15m

1 stop

LAX7:10 pmLos Angeles

$810

Singapore Airlines

Sep 18

LAX11:30 pmLos Angeles

27h 50m

1 stop

USM5:20 pmKo Samui

Sep 24

USM6:15 pmKo Samui

39h 25m

1 stop

LAX7:40 pmLos Angeles

$813

Singapore Airlines

Sep 7

SFO11:45 amSan Francisco

30h 00m

1 stop

USM7:45 amKo Samui

Sep 14

USM6:15 pmKo Samui

29h 35m

1 stop

SFO9:50 amSan Francisco

$872

Japan Airlines flights from California to Ko Samui

Our best Japan Airlines deals on California to Ko Samui flight tickets

Japan Airlines

Sep 3

SFO12:25 pmSan Francisco

30h 10m

2 stops

USM8:35 amKo Samui

Sep 9

USM7:50 amKo Samui

40h 15m

2 stops

SFO10:05 amSan Francisco

$1,095

Japan Airlines

Sep 7

SFO12:25 pmSan Francisco

30h 10m

2 stops

USM8:35 amKo Samui

Sep 14

USM6:00 amKo Samui

42h 05m

2 stops

SFO10:05 amSan Francisco

$1,104

Japan Airlines

Sep 7

SAN1:35 pmSan Diego

29h 45m

2 stops

USM9:20 amKo Samui

Sep 10

USM7:50 amKo Samui

41h 45m

2 stops

SAN11:35 amSan Diego

$1,539

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 9/7

11:45 am-7:45 am

1 stop30h 00m

Ko Samui

Mon 9/14

6:15 pm-9:50 am

1 stop29h 35m

$872

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Thu 9/3

12:25 pm-8:35 am

2 stops30h 10m

Ko Samui

Wed 9/9

7:50 am-10:05 am

2 stops40h 15m

$1,095

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 9/7

12:25 pm-8:35 am

2 stops30h 10m

Ko Samui

Mon 9/14

6:00 am-10:05 am

2 stops42h 05m

$1,104

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Wed 9/9

12:30 am-3:10 pm

2 stops24h 40m

Ko Samui

Mon 9/21

6:00 am-9:10 pm

2 stops29h 10m

$1,105

Quickest round-trip

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sat 8/22

12:05 am-5:20 pm

1 stop27h 15m

Ko Samui

Sun 8/30

1:30 pm-10:10 pm

1 stop22h 40m

$1,114

OaklandKo Samui

OAK - USM

OAKUSM

Oakland

Mon 6/22

6:22 am-9:20 am

3 stops36h 58m

Ko Samui

Mon 6/29

5:55 pm-7:33 pm

3 stops39h 38m

$2,153

OaklandKo Samui

OAK - USM

OAKUSM

Oakland

Mon 7/27

6:22 am-10:30 am

3 stops38h 08m

Ko Samui

Mon 8/3

5:55 pm-7:33 pm

3 stops39h 38m

$2,181

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Fri 10/30

7:00 pm-9:05 pm

2 stops36h 05m

Ko Samui

Tue 11/3

4:25 pm-4:10 pm

2 stops38h 45m

$2,224

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 $686. If you don’t want to visit Ko Samui in September, then you should wait until November to fly from California, when ticket prices are also cheap, with an average price of $730.

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

You could potentially save up to 15% 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	27h 15m
Direct flights	None

The fastest flight from California to Ko Samui takes 27h 15m

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

Search flight deals

Frequently asked questions about flying from California to Ko Samui

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 May 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 $753	Free Cancellation	Rating 8.2 1,510 reviews		Search Singapore Airlines flights
EVA Air	PriceFrom $940	Free Cancellation	Rating 8.5 1,445 reviews		Search EVA Air flights

Ko Pha Ngan

Ko Tao

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

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Cheap flights from California to Ko Samui from $810

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from California to Ko Samui departing on 10/1. 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 California to Ko Samui

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Our best Japan Airlines deals on California to Ko Samui flight tickets

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

What is the cheapest month to fly to Ko Samui?

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

What is the cheapest airline that flies 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

Frequently asked questions about flying from California to Ko Samui

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?

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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