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Cheap flights from San Francisco to Ko Samui from $489

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:55 pm - 3:35 pmSFO  San Francisco-USM Ko Samui
25h 40m2 stops Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
4:30 pm - 9:15 pmUSM  Ko Samui-SFO San Francisco
19h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl
$819Multiple Airlines
Tue, Mar 2 - Tue, Mar 9
Multiple Airlines Logo
12:20 am - 12:45 pmSFO  San Francisco-USM Ko Samui
22h 25m2 stops Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:55 am - 10:40 pmUSM  Ko Samui-SFO San Francisco
24h 45m1 stop Hong Kong Intl
$819Multiple Airlines
Mon, Apr 26 - Wed, May 12
Multiple Airlines Logo
12:20 am - 12:45 pmSFO  San Francisco-USM Ko Samui
22h 25m2 stops Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
3:50 pm - 10:40 pmUSM  Ko Samui-SFO San Francisco
20h 50m2 stops Bangkok Suvarnabhumi Hong Kong Intl
$819Multiple Airlines
Mon, Apr 26 - Wed, May 12
Singapore Airlines Logo
9:40 am - 8:00 amSFO  San Francisco-USM Ko Samui
31h 20m1 stop Singapore Changi
Singapore Airlines Logo
8:55 am - 7:50 amUSM  Ko Samui-SFO San Francisco
37h 55m1 stop Singapore Changi
$850Singapore Airlines
Wed, Jan 27 - Mon, Feb 22
Multiple Airlines Logo
10:55 pm - 3:35 pmSFO  San Francisco-USM Ko Samui
25h 40m2 stops Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:45 pm - 9:15 pmUSM  Ko Samui-SFO San Francisco
22h 30m2 stops Bangkok Suvarnabhumi Hong Kong Intl
$864Multiple Airlines
Wed, Jan 27 - Mon, Feb 22
Singapore Airlines Logo
9:40 am - 8:00 amSFO  San Francisco-USM Ko Samui
31h 20m1 stop Singapore Changi
Singapore Airlines Logo
8:55 am - 7:50 amUSM  Ko Samui-SFO San Francisco
37h 55m1 stop Singapore Changi
$886Singapore Airlines
Wed, Jan 27 - Mon, Feb 22
Singapore Airlines Logo
9:40 am - 8:00 amSFO  San Francisco-USM Ko Samui
31h 20m1 stop Singapore Changi
Singapore Airlines Logo
8:55 am - 7:50 amUSM  Ko Samui-SFO San Francisco
37h 55m1 stop Singapore Changi
$929Singapore Airlines
Wed, Jan 27 - Mon, Feb 22
EVA Air Logo
12:25 am - 1:45 pmSFO  San Francisco-USM Ko Samui
23h 20m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
9:15 am - 4:00 pmUSM  Ko Samui-SFO San Francisco
20h 45m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,197EVA Air
Sun, Mar 28 - Tue, Apr 13
EVA Air Logo
12:25 am - 1:45 pmSFO  San Francisco-USM Ko Samui
23h 20m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
9:15 am - 4:00 pmUSM  Ko Samui-SFO San Francisco
20h 45m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,197EVA Air
Mon, Mar 29 - Tue, Apr 13
EVA Air Logo
12:25 am - 1:45 pmSFO  San Francisco-USM Ko Samui
23h 20m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
11:45 am - 8:00 pmUSM  Ko Samui-SFO San Francisco
22h 15m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,197EVA Air
Mon, Mar 29 - Mon, Apr 12

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Singapore Airlines flights from San Francisco to Ko Samui

Our best Singapore Airlines deals on San Francisco to Ko Samui flight tickets
Singapore Airlines
Jan 27
SFO9:40 amSan Francisco
31h 20m
1 stop
USM8:00 amKo Samui
Feb 22
USM8:55 amKo Samui
37h 55m
1 stop
SFO7:50 amSan Francisco
$850
Singapore Airlines
Jan 27
SFO9:40 amSan Francisco
31h 20m
1 stop
USM8:00 amKo Samui
Feb 22
USM8:55 amKo Samui
37h 55m
1 stop
SFO7:50 amSan Francisco
$854
Singapore Airlines
Jan 27
SFO9:40 amSan Francisco
31h 20m
1 stop
USM8:00 amKo Samui
Feb 22
USM8:55 amKo Samui
37h 55m
1 stop
SFO7:50 amSan Francisco
$886

Cathay Pacific flights from San Francisco to Ko Samui

Our best Cathay Pacific deals on San Francisco to Ko Samui flight tickets
Cathay Pacific
Apr 27
SFO1:00 pmSan Francisco
40h 40m
1 stop
USM7:40 pmKo Samui
May 12
USM11:55 amKo Samui
24h 45m
1 stop
SFO10:40 pmSan Francisco
$869
Cathay Pacific
Mar 27
SFO12:20 amSan Francisco
29h 20m
1 stop
USM7:40 pmKo Samui
Apr 13
USM11:55 amKo Samui
37h 00m
1 stop
SFO10:55 amSan Francisco
$1,000
Cathay Pacific
Mar 29
SFO12:20 amSan Francisco
29h 20m
1 stop
USM7:40 pmKo Samui
Apr 11
USM11:55 amKo Samui
37h 00m
1 stop
SFO10:55 amSan Francisco
$1,009

momondo Fare Finder

 
Use the filters below to find and compare flights from San Francisco to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Tue 3/2

10:55 pm-3:35 pm

2 stops25h 40m

Ko Samui

Tue 3/9

4:30 pm-9:15 pm

2 stops19h 45m

$819

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 4/26

12:20 am-12:45 pm

2 stops22h 25m

Ko Samui

Wed 5/12

11:55 am-10:40 pm

1 stop24h 45m

$819
Quickest round-trip

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 4/26

12:20 am-12:45 pm

2 stops22h 25m

Ko Samui

Wed 5/12

3:50 pm-10:40 pm

2 stops20h 50m

$819

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 1/27

9:40 am-8:00 am

1 stop31h 20m

Ko Samui

Mon 2/22

8:55 am-7:50 am

1 stop37h 55m

$850

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 1/27

10:55 pm-3:35 pm

2 stops25h 40m

Ko Samui

Mon 2/22

1:45 pm-9:15 pm

2 stops22h 30m

$864

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 1/27

9:40 am-8:00 am

1 stop31h 20m

Ko Samui

Mon 2/22

8:55 am-7:50 am

1 stop37h 55m

$886

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 1/27

9:40 am-8:00 am

1 stop31h 20m

Ko Samui

Mon 2/22

8:55 am-7:50 am

1 stop37h 55m

$929

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Sun 3/28

12:25 am-1:45 pm

2 stops23h 20m

Ko Samui

Tue 4/13

9:15 am-4:00 pm

2 stops20h 45m

$1,197

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 3/29

12:25 am-1:45 pm

2 stops23h 20m

Ko Samui

Tue 4/13

9:15 am-4:00 pm

2 stops20h 45m

$1,197

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Mon 3/29

12:25 am-1:45 pm

2 stops23h 20m

Ko Samui

Mon 4/12

11:45 am-8:00 pm

2 stops22h 15m

$1,197

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ko Samui from

How to get the cheapest flight ticket from San Francisco 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

What is the cheapest month to fly to Ko Samui?

In general, August is the cheapest month to fly from San Francisco to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you don’t want to visit Ko Samui in August, then you should wait until November to fly from San Francisco, when ticket prices are also cheap, with an average price of $942.

Can stopping save me money on San Francisco to Ko Samui flights?

You could potentially save up to 59% on your flight if you consider stops on a San Francisco to Ko Samui flight.

When to book flights from San Francisco to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Ko Samui (SFO to USM) flight deals and tips

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

Best Price Found

$489

Fastest flight time

24h 25m

Direct flights

None
The best one-way flight to Ko Samui from San Francisco in the past 72 hours is $489. The best round-trip flight deal from San Francisco to Ko Samui found on momondo in the last 72 hours is $819.
The fastest flight from San Francisco to Ko Samui takes 24h 25m
There are no direct flights from San Francisco to Ko Samui. There are no popular flight routes from San Francisco to Ko Samui.
Search flight deals

Frequently asked questions about flying from San Francisco to Ko Samui

  • How far is San Francisco to Ko Samui by plane?

    San Francisco and Ko Samui are 8166.7 mi apart from one another. In terms of flight time, this usually takes a little over 24h 25m.

  • When did momondo last update prices for flights from San Francisco Airport to Ko Samui Airport?

    Prices for flights from San Francisco Airport to Ko Samui Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Francisco Airport to Ko Samui Airport?

  • How old do you have to be to fly from San Francisco Airport to Ko Samui Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport 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.

  • What is the most popular airline from San Francisco to Ko Samui?

Best airlines flying from San Francisco to Ko Samui

Compare and see reviews for airlines that fly from San Francisco to Ko Samui with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $819Free CancellationRating
8.2
1,633 reviews
Search Singapore Airlines flights
EVA AirPriceFrom $940Free CancellationRating
8.5
1,554 reviews
Search EVA Air flights

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao
Khanom

Why use momondo?

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

It is quick and easy to find San Francisco to Ko Samui flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ko Samui that suits you.

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

Flights from San Francisco 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 San Francisco to Ko Samui?

momondo provides multiple filters to help you find the best flight to Ko Samui from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for San Francisco to Ko Samui flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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