One Way

Popular Filters

Departure Airports

One Way Price

THB 27,509 THB 116,000

Duration

20 h 0 m 54 h 30 m

Stops From San Francisco

Departure From San Francisco

Before 6 AM

THB 46,182

6 AM - 12 PM

THB 28,874

12 PM - 6 PM

THB 27,700

After 6 PM

THB 27,509

Arrival at Koh Samui

6 AM - 12 PM

THB 34,016

12 PM - 6 PM

THB 34,016

After 6 PM

THB 27,509

Alliances & Airlines

Oneworld

(6)

SkyTeam

(1)

Star Alliance

(10)

+ 3 more

Layover Airports

+ 2 more

Layover Duration

1 h 40 m 35 h 0 m

Top Flights From San Francisco

San Francisco To Koh Samui Flights

Book San Francisco to Koh Samui flight tickets at lowest price. Get best deals on your upcoming San Francisco to Koh Samui flights only on MakeMyTrip. Also Book Koh Samui to San Francisco Flights. Currently 16 flights flying from San Francisco to Koh Samui. To save maximum on flight booking click on below Fare Calendar button and choose your dates.Avail Zero Cancellation for flight bookings.


Sorted By:
Departure
Duration
Arrival
Price
Price last updated at 15 Jul 2026 12:51:52
United Airlines, Bangkok Airways

THB 27,509

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

United Airlines UA | 1

22:50

Sat, 18 Jul 26

Terminal I

San Francisco, United States

16 h 25 m

06:15

Mon, 20 Jul 26

Terminal T2

Singapore, Singapore

BAGGAGE : CHECK INCABIN

Information not available

Bangkok Airways PG | 968

17:20

Mon, 20 Jul 26

Terminal T1

Singapore, Singapore

01 h 55 m

18:15

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

United Airlines, Bangkok Airways

THB 27,700

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

United Airlines UA | 877

23:50

Sat, 18 Jul 26

Terminal I

San Francisco, United States

14 h 10 m

05:00

Mon, 20 Jul 26

Terminal T1

Hong Kong, Hong Kong

BAGGAGE : CHECK INCABIN

Information not available

Bangkok Airways PG | 806

17:20

Mon, 20 Jul 26

Terminal T2

Hong Kong, Hong Kong

03 h 20 m

19:40

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

United Airlines, Bangkok Airways

THB 28,874

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

United Airlines UA | 29

11:10

Sat, 18 Jul 26

Terminal I

San Francisco, United States

16 h 25 m

18:35

Sun, 19 Jul 26

Terminal T2

Singapore, Singapore

BAGGAGE : CHECK INCABIN

Information not available

Bangkok Airways PG | 962

20:15

Sun, 19 Jul 26

Terminal T1

Singapore, Singapore

01 h 55 m

21:10

Sun, 19 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Air Canada, Scoot

More Timing Options

THB 35,425

THB 34,016

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

Air Canada AC | 3108 | Operated By United Airlines

20:51

Sat, 18 Jul 26

Terminal T3

San Francisco, United States

02 h 31 m

23:22

Sat, 18 Jul 26

Terminal M

Vancouver, Canada

BAGGAGE : CHECK INCABIN

Information not available

Air Canada AC | 19

22:50

Sun, 19 Jul 26

Terminal M

Vancouver, Canada

15 h 25 m

05:15

Tue, 21 Jul 26

Terminal T2

Singapore, Singapore

BAGGAGE : CHECK INCABIN

Information not available

Scoot TR | 640

07:00

Tue, 21 Jul 26

Terminal T1

Singapore, Singapore

01 h 45 m

07:45

Tue, 21 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

American Airlines, Cathay Pacific

THB 45,269

THB 43,460

Transit Visa may be required

San Jose to Koh Samui , 18 Jul

American Airlines AA | 436

14:23

Sat, 18 Jul 26

Terminal A

San Jose, United States

03 h 41 m

20:04

Sat, 18 Jul 26

Dallas/Fort Worth, United States

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific CX | 875

22:55

Sat, 18 Jul 26

Terminal D

Dallas/Fort Worth, United States

16 h 10 m

04:05

Mon, 20 Jul 26

Terminal T1

Hong Kong, Hong Kong

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific CX | 6503 | Operated By Bangkok Airways

17:20

Mon, 20 Jul 26

Terminal T2

Hong Kong, Hong Kong

03 h 20 m

19:40

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific

THB 48,100

THB 46,182

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

Cathay Pacific CX | 873

01:20

Sat, 18 Jul 26

Terminal I

San Francisco, United States

13 h 55 m

06:15

Sun, 19 Jul 26

Terminal T1

Hong Kong, Hong Kong

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific CX | 6503 | Operated By Bangkok Airways

17:20

Sun, 19 Jul 26

Terminal T2

Hong Kong, Hong Kong

03 h 20 m

19:40

Sun, 19 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Singapore Airlines

THB 56,000

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

Singapore Airlines SQ | 31

11:45

Sat, 18 Jul 26

Terminal I

San Francisco, United States

16 h 25 m

19:10

Sun, 19 Jul 26

Singapore, Singapore

BAGGAGE : CHECK INCABIN

Information not available

Singapore Airlines SQ | 8340 | Operated By Scoot

07:00

Mon, 20 Jul 26

Terminal T1

Singapore, Singapore

01 h 45 m

07:45

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Vietnam Airlines

THB 63,041

THB 60,523

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

Vietnam Airlines VN | 99

22:50

Sat, 18 Jul 26

Terminal I

San Francisco, United States

15 h 40 m

04:30

Mon, 20 Jul 26

Terminal T2

Ho Chi Minh City, Vietnam

BAGGAGE : CHECK INCABIN

Information not available

Vietnam Airlines VN | 651

09:10

Mon, 20 Jul 26

Terminal T2

Ho Chi Minh City, Vietnam

02 h

12:10

Mon, 20 Jul 26

Terminal T3

Singapore, Singapore

BAGGAGE : CHECK INCABIN

Information not available

Vietnam Airlines VN | 3234 | Operated By Bangkok Airways

17:20

Mon, 20 Jul 26

Terminal T1

Singapore, Singapore

01 h 55 m

18:15

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Japan Airlines

THB 108,477

THB 104,840

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

Japan Airlines JL | 57

13:55

Sat, 18 Jul 26

Terminal I

San Francisco, United States

10 h 35 m

16:30

Sun, 19 Jul 26

Terminal T2

Tokyo - Narita Apt, Japan

BAGGAGE : CHECK INCABIN

Information not available

Japan Airlines JL | 707

18:25

Sun, 19 Jul 26

Terminal T2

Tokyo - Narita Apt, Japan

06 h 35 m

23:00

Sun, 19 Jul 26

Bangkok, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Japan Airlines JL | 5975 | Operated By Bangkok Airways

06:25

Mon, 20 Jul 26

Bangkok, Thailand

01 h 05 m

07:30

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific

THB 118,017

THB 114,380

Transit Visa may be required

San Francisco to Koh Samui , 18 Jul

Cathay Pacific CX | 879

14:00

Sat, 18 Jul 26

Terminal I

San Francisco, United States

13 h 55 m

18:55

Sun, 19 Jul 26

Terminal T1

Hong Kong, Hong Kong

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific CX | 617

22:15

Sun, 19 Jul 26

Terminal T1

Hong Kong, Hong Kong

02 h 55 m

00:10

Mon, 20 Jul 26

Bangkok, Thailand

BAGGAGE : CHECK INCABIN

Information not available

Cathay Pacific CX | 6541 | Operated By Bangkok Airways

06:25

Mon, 20 Jul 26

Bangkok, Thailand

01 h 05 m

07:30

Mon, 20 Jul 26

Koh Samui, Thailand

BAGGAGE : CHECK INCABIN

Information not available

San Francisco to Koh Samui Flights Information:-

Looking for San Francisco to Koh Samui Flight? Hereโ€™s all you need to know! For convenience and to save time, pick the airport that is closest to your destination. The nearest airport to Koh Samui is Samui and the IATA code for the same is USM.
Currently, there are 9 airlines operating flights between the two destinations and approximately 16 flights take off from San Francisco to Koh Samui every week.

Need information on San Francisco to Koh Samui airfare?

The minimum airfare for a San Francisco to Koh Samui flight would be 27509, which may go up to 114379 depending on the route, booking time and availability.
It is recommended that you book a round-trip, since it always works out to be more economical.

Flight Details for San Francisco to Koh Samui

If you are looking for San Francisco to Koh Samui flights, there is no dearth of options to choose from. Several reputed airlines currently offer both direct and indirect flights between the two destinations. Some of these are Air Canada, American Airlines, Bangkok Airways, Cathay Pacific, Japan Airlines, Scoot, Singapore Airlines, United Airlines, Vietnam Airlines. Out of these, only 0 airlines operate direct flights. Indirect flights may involve more travel time, but they usually cost lesser than direct flights.

The number of flights operated by each airline is as follows:Air Canada : 3, American Airlines : 3, Bangkok Airways : 3, Cathay Pacific : 3, Japan Airlines : 3, Scoot : 3, Singapore Airlines : 3, United Airlines : 3, Vietnam Airlines : 3

To board the first San Francisco to Koh Samui flight, choose Cathay Pacific, which departs at 01:20 The last flight for this route is United Airlines, Bangkok Airways, departing at 23:50

Koh Samui Airport Information

Samui

About San Francisco (SFO)

San Francisco, a gem of California, is celebrated for its eclectic culture, stunning vistas, and iconic landmarks. Nestled on the tip of a peninsula, this vibrant city boasts a population of over 815,000 and offers a unique blend of urban sophistication and natural beauty. Known for its foggy mornings and mild climate, San Francisco is a year-round destination that captivates visitors with its Victorian architecture, bustling neighborhoods, and rich history. The cityโ€™s proximity to Hollywood has made it a favorite backdrop for filmmakers, adding to its allure.

Airports

San Francisco International Airport (SFO) is the primary gateway to the city, located about 13 miles south of downtown. Another option is Oakland International Airport (OAK), situated approximately 21 miles from the city center. Both airports offer extensive domestic and international flights, making travel convenient and accessible.

Hotels and Restaurants

San Francisco caters to all types of travelers with its diverse accommodation options. Luxury seekers can indulge at the Ritz-Carlton or the Fairmont, while budget-conscious visitors might opt for the cozy Hotel Nikko or the historic Hotel Whitcomb. The cityโ€™s culinary scene is equally impressive, featuring everything from Michelin-starred restaurants like Atelier Crenn to beloved local eateries such as Tartine Bakery. Donโ€™t miss out on the fresh seafood at Fishermanโ€™s Wharf or the authentic dim sum in Chinatown.

Transportation

Getting around San Francisco is a breeze thanks to its efficient public transportation system. The BART (Bay Area Rapid Transit) connects the city with surrounding areas, while the iconic cable cars offer a nostalgic way to explore the steep streets. MUNI buses and light rail provide extensive coverage throughout the city. For more personalized travel, taxis, ride-sharing services, and bike rentals are readily available.

Must-See Places

San Francisco is home to numerous attractions that should be on every visitorโ€™s list:
โ€ข Golden Gate Bridge โ€“ An architectural marvel offering breathtaking views
โ€ข Alcatraz Island โ€“ The infamous former prison with guided tours
โ€ข Fishermanโ€™s Wharf โ€“ A bustling waterfront area with shops and restaurants
โ€ข Chinatown โ€“ The oldest and largest Chinatown in North America
โ€ข Union Square โ€“ A premier shopping and entertainment district
โ€ข Golden Gate Park โ€“ A sprawling urban park with gardens and museums
โ€ข The Painted Ladies โ€“ Iconic Victorian houses near Alamo Square

Climate

San Francisco enjoys a mild climate year-round, with cool, wet winters and dry, warm summers. The famous fog, known as โ€œKarl,โ€ often rolls in during the mornings and evenings. The best time to visit is from September to November, when the weather is typically pleasant and the summer crowds have thinned. However, each season offers its own charm, making San Francisco a delightful destination no matter the time of year.

Important Information about San Francisco to Koh Samui Flight

Lowest Fare to Travel with Date THB null- 18 Jul
Total flights from San Francisco to Koh Samui in a week 16 Flights
First Flight Cathay Pacific, departs at 01:20
Last FlightUnited Airlines, Bangkok Airways, departs at 23:50
Non-Stop Flights from San Francisco to Koh Samui0
Airport Name & codes of San Francisco & Koh Samui San Francisco Airport, San Francisco-SFO, Samui,Koh Samui-USM

San Francisco Address

Address : San Francisco, CA 94128, United States
Tel : +1 650-821-8211

About Koh Samui (USM)

Koh Samui also pronounced as Ko Samui is one of the enchanting and vivacious islands in the world. From sensational beaches to elephant rides, from Jungal safari to speed boat, you will find everything here. The natural surrounding and modern art of this magnificent island offer you a great peace of mind and add some most amazing moments in your life. Situated in the Gulf of Thailand, approximately 80 km from the southern coast of Thailand, Koh Samui is the third largest island on the land of Thailand. It was the untouched island in the past, but with passing time, it has emerged as paradise on earth. Though still reaching here is little difficult as people need to do a lot of trekking. The lofty mountains and tranquil atmosphere provide a pleasant stay in this part. You will simply love to enjoy the elephant ride as well as fishing. There are lots of water sports activities which you provide you a thrilling experience. The beach parties and sea foods also attract your attention and make you fall in love with this beautiful island. Beside all these facts, travellers across the world will surely love the warm hospitality and nightlife of this part. To add more spice in your holidays, there are a number of breathtaking places where you can have the time of your life with your near and dear ones. Places like The Big Buddha, Namuang Waterfall, Hin Ta - Hin Yai, Sawadee Shrine, Hin Lad Waterfall, Magic Buddha Garden, Ancient House, Butterfly Garden, Snake Farm, Scuba Diving and Paradise Park Farm are there to reflect the real charm of this island. For the ultimate beach holiday, Koh Samui is one of the finest places to visit. The best and perfect time to visit this part of the world is the summers. To book your flights to Koh Samui well in advance, you can simply log onto MakeMyTrip.com where you also get some attractive discounts on your every booking. Besides booking your air tickets, you can also book hotels, car services, and bus services on this leading online travel portal.

Koh Samui Address

Frequently Asked Questions - San Francisco to Koh Samui Flights

Which airlines offer cheapest airfare from San Francisco to Koh Samui?

There is no set pricing for airlines to offer cheap flight fare from San Francisco to Koh Samui. These fares are mostly decided on the basis of algorithms followed by air carriers to final the prizing based on demand. However, some multiple route flights with stop-overs offer cheap flights as compared to direct flight departing from San Francisco to Koh Samui.

Is passport mandatory to travel from San Francisco to Koh Samui?

When making an international trip, passport is mandatory as it defines your identity to the other nation officials. The VISA norms may differ from country to country, which means some would allow Visa on arrival and others may require you to obtain visa in advance. But the availability of passport is mandatory at the time of departure and arrival as well.

How do MakeMyTrip finds the lowest available dare for flights from San Francisco to Koh Samui?

MakeMyTrip is a popular travel portal that also works as a travel search engine that allows you to see best available results for your flight search. Every time you make search for flights to any destination, the MMT algorithm picks all the available air carriers for the route and filter rates basis on the cheapest fare available in their system. At MMT, you can not only search flights on the basis of the fare, but you can also see which flight offers direct route, which has multiple stop-overs, baggage allowance, in-flight meal options, cancellation policy, etc. You can also check available discounts offered by payments partners and air carriers when booking the flight.

What is the best time to book cheap flight tickets from San Francisco to Koh Samui?

To get cheap flight tickets from San Francisco to Koh Samui, the best time would be to plan your trip during the off season. At that time the flight tickets are usually cheaper than the peak season and the accommodation booking is also available at the affordable price. The other way of booking cheap flight tickets from San Francisco (SFO) to Koh Samui (USM) is to book atleast 4 weeks in advance before your departure date to get competitive pricing on your tickets even during the peak season.

Can I find cheap accommodation near to airport when travelling from San Francisco to Koh Samui?

There are several accommodation options available near the Samui. You can check for both budget friendly and well as five star accommodation near the airport depending on your requirement and budget. These hotels are mostly suitable for business travellers.

Is there a way to make flexible departure date bookings for your San Francisco to Koh Samui flight tickets?

Some travel portals like MakeMyTrip offer flexible departure and arrival booking option with certain air carrier when booking from San Francisco to Koh Samui. You can check the flexible booking flight options once you get the results filters based on your search and make the booking accordingly. Please note, some airlines make charge extra for flexible travel dates.

Can I cancel my ticket from San Francisco to Koh Samui without cancellation charges?

To avoid cancellation charges on your air tickets, you need to make a selection at the time of booking for ZERO cancellation. Please note, the zero cancellation facility is chargeable with minimum amount and can help you save a lot at the time sudden cancellations.