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Cheap flights from San Francisco to Ko Samui from $460

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.
Cathay Pacific Logo
12:20 am - 7:40 pmSFO  San Francisco-USM Ko Samui
29h 20m1 stop Hong Kong Intl
Cathay Pacific Logo
11:55 am - 10:40 pmUSM  Ko Samui-SFO San Francisco
24h 45m1 stop Hong Kong Intl
$805Cathay Pacific
Sat, Apr 10 - Tue, Apr 20
Multiple Airlines Logo
11:25 am - 7:35 pmSFO  San Francisco-USM Ko Samui
41h 10m1 stop Hong Kong Intl
Multiple Airlines Logo
4:30 pm - 9:15 pmUSM  Ko Samui-SFO San Francisco
19h 45m2 stops Bangkok Suvarnabhumi Hong Kong Intl
$819Multiple Airlines
Wed, Feb 10 - Wed, Feb 17
Multiple Airlines Logo
12:20 am - 7:40 pmSFO  San Francisco-USM Ko Samui
29h 20m1 stop Hong Kong Intl
Multiple Airlines Logo
1:50 pm - 10:40 pmUSM  Ko Samui-SFO San Francisco
22h 50m2 stops Bangkok Suvarnabhumi Hong Kong Intl
$820Multiple Airlines
Sat, Apr 10 - Tue, Apr 20
Multiple Airlines Logo
11:25 am - 7:10 amSFO  San Francisco-USM Ko Samui
28h 45m2 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
$823Multiple Airlines
Wed, Feb 10 - Wed, Feb 17
Singapore Airlines Logo
9:40 am - 5:10 pmSFO  San Francisco-USM Ko Samui
40h 30m1 stop Singapore Changi
Singapore Airlines Logo
12:00 pm - 7:50 amUSM  Ko Samui-SFO San Francisco
34h 50m1 stop Singapore Changi
$908Singapore Airlines
Tue, Nov 3 - Mon, Nov 16
Singapore Airlines Logo
9:40 am - 6:55 pmSFO  San Francisco-USM Ko Samui
42h 15m1 stop Singapore Changi
Singapore Airlines Logo
8:55 am - 7:50 amUSM  Ko Samui-SFO San Francisco
37h 55m1 stop Singapore Changi
$1,072Singapore Airlines
Thu, Feb 11 - Fri, Feb 19
EVA Air Logo
12:50 am - 1:45 pmSFO  San Francisco-USM Ko Samui
22h 55m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
6:00 am - 4:00 pmUSM  Ko Samui-SFO San Francisco
24h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,078EVA Air
Sun, Apr 11 - Mon, Apr 19
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
2:00 pm - 8:00 pmUSM  Ko Samui-SFO San Francisco
20h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,078EVA Air
Sun, Apr 11 - Wed, Apr 21
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
7:50 am - 4:00 pmUSM  Ko Samui-SFO San Francisco
22h 10m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,078EVA Air
Sun, Apr 11 - Tue, Apr 20
Singapore Airlines Logo
9:40 am - 6:55 pmSFO  San Francisco-USM Ko Samui
42h 15m1 stop Singapore Changi
Singapore Airlines Logo
8:55 am - 7:50 amUSM  Ko Samui-SFO San Francisco
37h 55m1 stop Singapore Changi
$1,083Singapore Airlines
Wed, Feb 10 - Wed, Feb 17

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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 10
SFO12:20 amSan Francisco
29h 20m
1 stop
USM7:40 pmKo Samui
Apr 20
USM11:55 amKo Samui
24h 45m
1 stop
SFO10:40 pmSan Francisco
$805
Cathay Pacific
Apr 11
SFO12:20 amSan Francisco
29h 20m
1 stop
USM7:40 pmKo Samui
Apr 20
USM11:55 amKo Samui
24h 45m
1 stop
SFO10:40 pmSan Francisco
$828
Cathay Pacific
Apr 11
SFO12:20 amSan Francisco
29h 20m
1 stop
USM7:40 pmKo Samui
Apr 19
USM7:50 amKo Samui
28h 50m
2 stops
SFO10:40 pmSan Francisco
$867

EVA Air flights from San Francisco to Ko Samui

Our best EVA Air deals on San Francisco to Ko Samui flight tickets
EVA Air
Apr 11
SFO12:50 amSan Francisco
22h 55m
2 stops
USM1:45 pmKo Samui
Apr 19
USM6:00 amKo Samui
24h 00m
2 stops
SFO4:00 pmSan Francisco
$1,078
EVA Air
Apr 9
SFO12:50 amSan Francisco
22h 55m
2 stops
USM1:45 pmKo Samui
Apr 20
USM7:50 amKo Samui
22h 10m
2 stops
SFO4:00 pmSan Francisco
$1,116
EVA Air
Nov 2
SFO11:50 pmSan Francisco
25h 25m
2 stops
USM4:15 pmKo Samui
Nov 5
USM12:15 pmKo Samui
21h 25m
2 stops
SFO6:40 pmSan Francisco
$1,140

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

Sat 4/10

12:20 am-7:40 pm

1 stop29h 20m

Ko Samui

Tue 4/20

11:55 am-10:40 pm

1 stop24h 45m

$805

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 2/10

11:25 am-7:35 pm

1 stop41h 10m

Ko Samui

Wed 2/17

4:30 pm-9:15 pm

2 stops19h 45m

$819

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Sat 4/10

12:20 am-7:40 pm

1 stop29h 20m

Ko Samui

Tue 4/20

1:50 pm-10:40 pm

2 stops22h 50m

$820

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 2/10

11:25 am-7:10 am

2 stops28h 45m

Ko Samui

Wed 2/17

4:30 pm-9:15 pm

2 stops19h 45m

$823

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Tue 11/3

9:40 am-5:10 pm

1 stop40h 30m

Ko Samui

Mon 11/16

12:00 pm-7:50 am

1 stop34h 50m

$908

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Thu 2/11

9:40 am-6:55 pm

1 stop42h 15m

Ko Samui

Fri 2/19

8:55 am-7:50 am

1 stop37h 55m

$1,072

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Sun 4/11

12:50 am-1:45 pm

2 stops22h 55m

Ko Samui

Mon 4/19

6:00 am-4:00 pm

2 stops24h 00m

$1,078
Quickest round-trip

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Sun 4/11

12:25 am-1:45 pm

2 stops23h 20m

Ko Samui

Wed 4/21

2:00 pm-8:00 pm

2 stops20h 00m

$1,078

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Sun 4/11

12:25 am-1:45 pm

2 stops23h 20m

Ko Samui

Tue 4/20

7:50 am-4:00 pm

2 stops22h 10m

$1,078

San FranciscoKo Samui

SFO San Francisco - USM Ko Samui

SFOUSM

San Francisco

Wed 2/10

9:40 am-6:55 pm

1 stop42h 15m

Ko Samui

Wed 2/17

8:55 am-7:50 am

1 stop37h 55m

$1,083

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 October to fly from San Francisco, when ticket prices are also cheap, with an average price of $884.

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

You could potentially save up to 5% 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

$460

Fastest flight time

24h 50m

Direct flights

None
The best one-way flight to Ko Samui from San Francisco in the past 72 hours is $460. The best round-trip flight deal from San Francisco to Ko Samui found on momondo in the last 72 hours is $805.
The fastest flight from San Francisco to Ko Samui takes 24h 50m
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 50m.

  • 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 $817Free CancellationRating
8.2
1,625 reviews
Search Singapore Airlines flights
EVA AirPriceFrom $940Free CancellationRating
8.5
1,549 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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