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Find cheap one-way flights from Koh Samui to San Francisco starting at US$570.

Book one-way or return flights from Koh Samui to San Francisco from as little as US$570. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Koh Samui to San Francisco?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Koh Samui to San Francisco

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Bangkok Airways
From US$518
Scoot
From US$570
China Airlines
From US$700
EVA Air
From US$827
Cathay Pacific
From US$828
Singapore Airlines
From US$886
Qatar Airways
From US$972
Thai Airways
From US$992
Emirates
From US$998
Turkish Airlines
From US$1,012
ANA airlines

Find more flights and airlines

Find cheap flights from Koh Samui to San Francisco by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Koh Samui to San Francisco.

  • Cheapest
    Bangkok Airways
    USM
    07:00
    27h 50m
    2 transfer
    SFO
    20:50
    Samui International Airport - San Francisco International Airport
    Mon, May 13Bangkok Airways
    US$518
  • Bangkok Airways
    USM
    07:00
    27h 50m
    2 transfer
    SFO
    20:50
    Samui International Airport - San Francisco International Airport
    Mon, May 13Bangkok Airways
    US$518
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Koh Samui (USM) to San Francisco (SFO) the cheapest?

    Airlines adjust prices for flights from Koh Samui to San Francisco based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Koh Samui (USM) to San Francisco (SFO) cost?

    According to Trip.com's data, the lowest price is around $1,308.
  • What is the transportation method from the main airport to downtown in San Francisco?

    • The distance from San Francisco International Airport to downtown is about 17km. It takes about 30 minutes by taxi.

Koh Samui to San Francisco Flight Information

Cheapest nonstop flight price

$569

Off-season for travel

November

Peak season for travel

June