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

Singapore Airlines and Qatar Airways 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 San Francisco to Ko Samui takes 26h on average. On the other hand, flying from Los Angeles to Ko Samui takes 29h 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 June 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.

$538 Cheap Flights from California to Ko Samui in 2026

Discover deals from 900+ travel sites with momondo.

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.

9:15 pm - 6:50 pm

LAX

USM

31h 35m

1 stop

8:40 am - 9:50 pm

USM

LAX

27h 10m

1 stop

$789Singapore Airlines

Sun, Oct 4 - Sun, Oct 18

12:25 pm - 8:00 am

LAX

USM

28h 35m

2 stops

8:55 am - 7:55 pm

USM

LAX

26h 00m

1 stop

$801Singapore Airlines

Sun, Nov 29 - Sun, Dec 6

11:30 pm - 5:20 pm

LAX

USM

27h 50m

1 stop

11:05 am - 9:50 pm

USM

LAX

24h 45m

1 stop

$813Singapore Airlines

Tue, Sep 8 - Thu, Sep 24

9:15 pm - 5:10 pm

LAX

USM

29h 55m

1 stop

12:00 pm - 8:55 pm

USM

LAX

22h 55m

1 stop

$814Singapore Airlines

Fri, Oct 23 - Sun, Nov 1

11:30 pm - 4:35 pm

LAX

USM

27h 05m

2 stops

6:00 am - 9:50 pm

USM

LAX

29h 50m

2 stops

$938Multiple Airlines

Sun, Oct 4 - Sun, Oct 18

4:55 pm - 10:45 am

SAN

USM

27h 50m

2 stops

9:10 pm - 1:29 pm

USM

SAN

30h 19m

2 stops

$1,235Multiple Airlines

Wed, Oct 14 - Sun, Oct 25

5:15 pm - 4:50 pm

SAN

USM

33h 35m

2 stops

7:35 pm - 4:45 pm

USM

SAN

35h 10m

2 stops

$1,956Lufthansa

Thu, Oct 15 - Sun, Oct 25

1:35 pm - 9:20 am

SAN

USM

29h 45m

2 stops

6:25 pm - 11:35 am

USM

SAN

31h 10m

2 stops

$2,017Japan Airlines

Thu, Sep 10 - Mon, Sep 14

6:04 am - 9:20 am

OAK

USM

37h 16m

3 stops

8:35 pm - 6:55 pm

USM

OAK

36h 20m

3 stops

$2,090Qatar Airways

Mon, Sep 7 - Sun, Sep 13

6:04 am - 9:20 am

OAK

USM

37h 16m

3 stops

8:50 pm - 6:55 pm

USM

OAK

36h 05m

3 stops

$2,091Qatar Airways

Mon, Sep 7 - Sun, Sep 13

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Japan Airlines flights from California to Ko Samui

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

Japan Airlines

Sep 10

LAX3:00 pmLos Angeles

27h 35m

2 stops

USM8:35 amKo Samui

Sep 14

USM7:50 amKo Samui

41h 55m

2 stops

LAX11:45 amLos Angeles

$995

Japan Airlines

Sep 10

LAX3:00 pmLos Angeles

27h 35m

2 stops

USM8:35 amKo Samui

Sep 14

USM7:50 amKo Samui

41h 55m

2 stops

LAX11:45 amLos Angeles

$996

Japan Airlines

Sep 7

SFO1:55 pmSan Francisco

29h 25m

2 stops

USM9:20 amKo Samui

Sep 14

USM6:00 amKo Samui

42h 05m

2 stops

SFO10:05 amSan Francisco

$1,058

Singapore Airlines flights from California to Ko Samui

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

Singapore Airlines

Oct 4

LAX9:15 pmLos Angeles

31h 35m

1 stop

USM6:50 pmKo Samui

Oct 18

USM8:40 amKo Samui

27h 10m

1 stop

LAX9:50 pmLos Angeles

$789

Singapore Airlines

Nov 29

LAX12:25 pmLos Angeles

28h 35m

2 stops

USM8:00 amKo Samui

Dec 6

USM8:55 amKo Samui

26h 00m

1 stop

LAX7:55 pmLos Angeles

$801

Singapore Airlines

Sep 8

LAX11:30 pmLos Angeles

27h 50m

1 stop

USM5:20 pmKo Samui

Sep 24

USM11:05 amKo Samui

24h 45m

1 stop

LAX9:50 pmLos Angeles

$813

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 10/4

9:15 pm-6:50 pm

1 stop31h 35m

Ko Samui

Sun 10/18

8:40 am-9:50 pm

1 stop27h 10m

$789

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 11/29

12:25 pm-8:00 am

2 stops28h 35m

Ko Samui

Sun 12/6

8:55 am-7:55 pm

1 stop26h 00m

$801

Quickest round-trip

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 9/8

11:30 pm-5:20 pm

1 stop27h 50m

Ko Samui

Thu 9/24

11:05 am-9:50 pm

1 stop24h 45m

$813

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 10/23

9:15 pm-5:10 pm

1 stop29h 55m

Ko Samui

Sun 11/1

12:00 pm-8:55 pm

1 stop22h 55m

$814

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 10/4

11:30 pm-4:35 pm

2 stops27h 05m

Ko Samui

Sun 10/18

6:00 am-9:50 pm

2 stops29h 50m

$938

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Wed 10/14

4:55 pm-10:45 am

2 stops27h 50m

Ko Samui

Sun 10/25

9:10 pm-1:29 pm

2 stops30h 19m

$1,235

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Thu 10/15

5:15 pm-4:50 pm

2 stops33h 35m

Ko Samui

Sun 10/25

7:35 pm-4:45 pm

2 stops35h 10m

$1,956

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

Thu 9/10

1:35 pm-9:20 am

2 stops29h 45m

Ko Samui

Mon 9/14

6:25 pm-11:35 am

2 stops31h 10m

$2,017

OaklandKo Samui

OAK - USM

OAKUSM

Oakland

Mon 9/7

6:04 am-9:20 am

3 stops37h 16m

Ko Samui

Sun 9/13

8:35 pm-6:55 pm

3 stops36h 20m

$2,090

OaklandKo Samui

OAK - USM

OAKUSM

Oakland

Mon 9/7

6:04 am-9:20 am

3 stops37h 16m

Ko Samui

Sun 9/13

8:50 pm-6:55 pm

3 stops36h 05m

$2,091

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, October 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 $735. If you don’t want to visit Ko Samui in October, then you should wait until November to fly from California, when ticket prices are also cheap, with an average price of $753.

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

You could potentially save up to 10% 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	22h 45m
Direct flights	None

The fastest flight from California to Ko Samui takes 22h 45m

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 June 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 $806	Free Cancellation	Rating 8.2 1,557 reviews		Search Singapore Airlines flights
EVA Air	PriceFrom $940	Free Cancellation	Rating 8.5 1,482 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 $489

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 11/18. 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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Japan Airlines flights from California to Ko Samui

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Our best Singapore 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.

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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

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

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