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Cheap flights from San Francisco (SFO) to Koh Samui (USM)

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The best prices from San Francisco to Koh Samui are usually found in October or September, booked 34 days in advance, depart on a Monday or Wednesday and return on a Monday

SFO - USM
Price
$885 - $1512
USM
Temperature
84.2 - 91.4 °F
USM
Rainfall
2 - 16.7 inches
Popular in August High demand for flights, 25% potential price rise
Cheapest in October Best time to find cheap flights, 22% potential price drop
Average price $1054 Average for round-trip flights in March 2020
Round-trip from $885 From San Francisco to Koh Samui

Cheap flights from San Francisco to Koh Samui in April 2020

The best prices found for SFO to USM flights for April
8 Apr - 28 Apr
$837pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
SFO
San Francisco
10 Apr - 17 Apr
$853pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
SFO
San Francisco
9 Apr - 17 Apr
$897pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
SFO
San Francisco

San Francisco to Koh Samui 2020 flight deals

Cheap flights to Koh Samui from San Francisco found for this year
22 Jun - 30 Jun
$1058pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
 
1 STOP
SFO
San Francisco
26 Jun - 12 Jul
$1061pp
SFO
San Francisco
Singapore Airlines
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Singapore Airlines
     
3 STOPS
SFO
San Francisco
25 Jun - 2 Jul
$1064pp
SFO
San Francisco
Singapore Airlines
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Singapore Airlines
   
2 STOPS
SFO
San Francisco

Last minute flights from San Francisco to Koh Samui

Late deals on round-trip flights to Koh Samui from San Francisco, departing today and this week
27 Mar - 10 Apr
$849pp
SFO
San Francisco
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
SFO
San Francisco

Destination information for Koh Samui

Things to know before you go. Useful info for your trip from San Francisco to Koh Samui
Today's exchange rate
$1.00 = ฿32.75
Average temperature for March in Koh Samui
87.8 °F
Avg rainfall for March in Koh Samui
2.7 ″

Airports servicing San Francisco

Airports servicing Ko Samui

Related info for your journey

Useful info, stats and facts about San Francisco to Koh Samui flights.

Flight FAQs

From San Francisco to Koh Samui

Are flight prices decreasing from San Francisco to Koh Samui due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Francisco and Koh Samui for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Are there nonstop flights from San Francisco to Koh Samui for under $900 on Cheapflights?

Cheapflights has 3 direct flights from San Francisco to Koh Samui under $900. A good price for a nonstop flight from San Francisco to Koh Samui is less than $862.

Are there last-minute flights available from San Francisco to Koh Samui for under $900?

There are currently just 3 open flights from San Francisco to Koh Samui within the next 7 days for less than $900.

Does it rain more in San Francisco or Koh Samui?

In San Francisco, there will be same rainfall in San Francisco compared to Koh Samui over the next 14 days.

Is San Francisco weather warmer or cooler than Koh Samui?

Expect the weather to be around 91 °F on average in May. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Koh Samui is generally hotter than in San Francisco.