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 24h 45m on average. On the other hand, flying from San Diego to Ko Samui takes 25h 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.

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

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 December 2025, 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.

$364 Cheap Flights from California to Ko Samui in 2025/26

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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.

11:55 pm - 8:50 pm

LAX

USM

30h 55m2 stops

7:50 am - 8:00 pm

USM

LAX

26h 10m2 stops

$761Multiple Airlines

jue., abr. 16 - dom., abr. 26

10:05 pm - 6:50 pm

LAX

USM

29h 45m1 stop

8:45 am - 9:50 pm

USM

LAX

27h 05m1 stop

$812Singapore Airlines

mar., mar. 3 - mar., mar. 31

11:40 pm - 5:20 pm

LAX

USM

27h 40m1 stop

8:45 am - 9:50 pm

USM

LAX

27h 05m1 stop

$848Singapore Airlines

lun., may. 11 - lun., jun. 8

11:40 pm - 7:50 am

LAX

USM

42h 10m1 stop

6:15 pm - 12:50 pm

USM

LAX

32h 35m2 stops

$860Singapore Airlines

lun., may. 11 - lun., jun. 8

11:30 am - 6:50 pm

SFO

USM

41h 20m1 stop

8:45 am - 9:40 am

USM

SFO

38h 55m1 stop

$868Singapore Airlines

dom., abr. 26 - dom., may. 10

11:30 am - 6:50 pm

SFO

USM

41h 20m1 stop

8:45 am - 9:40 am

USM

SFO

38h 55m1 stop

$877Singapore Airlines

jue., abr. 16 - dom., abr. 26

12:25 am - 1:45 pm

SFO

USM

23h 20m2 stops

8:35 pm - 6:45 am

USM

SFO

24h 10m2 stops

$936EVA Air

mié., abr. 15 - dom., abr. 26

12:50 am - 1:45 pm

SFO

USM

22h 55m2 stops

8:50 pm - 6:45 am

USM

SFO

23h 55m2 stops

$973EVA Air

sáb., abr. 25 - dom., may. 10

7:40 pm - 6:15 pm

SAN

USM

32h 35m2 stops

1:30 pm - 5:50 pm

USM

SAN

42h 20m2 stops

$2,222British Airways

vie., may. 1 - mar., may. 5

8:50 am - 10:35 am

SAN

USM

34h 45m3 stops

7:35 pm - 4:30 pm

USM

SAN

35h 55m3 stops

$2,365Qatar Airways

sáb., feb. 14 - vie., feb. 20

EVA Air flights from California to Ko Samui

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

EVA Air

Apr 15

SFO12:25 amSan Francisco

23h 20m

2 stops

USM1:45 pmKo Samui

Apr 26

USM8:35 pmKo Samui

24h 10m

2 stops

SFO6:45 amSan Francisco

$936

Find similar

EVA Air

Mar 3

LAX11:00 pmLos Angeles

25h 35m

2 stops

USM3:35 pmKo Samui

Mar 31

USM9:15 amKo Samui

25h 40m

2 stops

LAX8:55 pmLos Angeles

$954

Find similar

EVA Air

Apr 15

LAX12:30 amLos Angeles

24h 15m

2 stops

USM2:45 pmKo Samui

Apr 30

USM8:10 amKo Samui

22h 30m

2 stops

LAX4:40 pmLos Angeles

$955

Find similar

Singapore Airlines flights from California to Ko Samui

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

Singapore Airlines

Mar 3

LAX10:05 pmLos Angeles

29h 45m

1 stop

USM6:50 pmKo Samui

Mar 31

USM8:45 amKo Samui

27h 05m

1 stop

LAX9:50 pmLos Angeles

$812

Find similar

Singapore Airlines

May 11

LAX11:40 pmLos Angeles

27h 40m

1 stop

USM5:20 pmKo Samui

Jun 8

USM8:45 amKo Samui

27h 05m

1 stop

LAX9:50 pmLos Angeles

$848

Find similar

Singapore Airlines

May 11

LAX11:40 pmLos Angeles

42h 10m

1 stop

USM7:50 amKo Samui

Jun 8

USM6:15 pmKo Samui

32h 35m

2 stops

LAX12:50 pmLos Angeles

$860

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

jue. 4/16

11:55 pm-8:50 pm

2 stops30h 55m

Ko Samui

dom. 4/26

7:50 am-8:00 pm

2 stops26h 10m

$761

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

mar. 3/3

10:05 pm-6:50 pm

1 stop29h 45m

Ko Samui

mar. 3/31

8:45 am-9:50 pm

1 stop27h 05m

$812

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

lun. 5/11

11:40 pm-5:20 pm

1 stop27h 40m

Ko Samui

lun. 6/8

8:45 am-9:50 pm

1 stop27h 05m

$848

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

lun. 5/11

11:40 pm-7:50 am

1 stop42h 10m

Ko Samui

lun. 6/8

6:15 pm-12:50 pm

2 stops32h 35m

$860

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

dom. 4/26

11:30 am-6:50 pm

1 stop41h 20m

Ko Samui

dom. 5/10

8:45 am-9:40 am

1 stop38h 55m

$868

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

jue. 4/16

11:30 am-6:50 pm

1 stop41h 20m

Ko Samui

dom. 4/26

8:45 am-9:40 am

1 stop38h 55m

$877

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

mié. 4/15

12:25 am-1:45 pm

2 stops23h 20m

Ko Samui

dom. 4/26

8:35 pm-6:45 am

2 stops24h 10m

$936

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

sáb. 4/25

12:50 am-1:45 pm

2 stops22h 55m

Ko Samui

dom. 5/10

8:50 pm-6:45 am

2 stops23h 55m

$973

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

vie. 5/1

7:40 pm-6:15 pm

2 stops32h 35m

Ko Samui

mar. 5/5

1:30 pm-5:50 pm

2 stops42h 20m

$2,222

San DiegoKo Samui

SAN - USM

SANUSM

San Diego

sáb. 2/14

8:50 am-10:35 am

3 stops34h 45m

Ko Samui

vie. 2/20

7:35 pm-4:30 pm

3 stops35h 55m

$2,365

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 $815. If you don’t want to visit Ko Samui in September, then you should wait until October to fly from California, when ticket prices are also cheap, with an average price of $1,023.

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 23% 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	24h 45m
Direct flights	None

The fastest flight from California to Ko Samui takes 24h 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

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 December 2025, 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 8.1 1,413 reviews		Search Singapore Airlines flights
EVA Air	PriceFrom $1,001	Free Cancellation	Rating 8.5 1,297 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.