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Find cheap one-way flights from San Francisco to Koh Samui starting at US$532.

For as little as US$532, you can take your next adventure to Koh Samui without breaking the bank. Choose between one-way and return tickets from San Francisco below.

  • One way
  • Round-trip

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

San Francisco to Koh Samui Flight time & Schedules

Flight info.
Departure
Arrival
Weekly Schedule
  1. CX893

    00:35

    SFO

    15.3h

    06:55

    HKG

    SM-W-F-
  2. CX787

    08:25

    HKG

    3.9h

    11:20

    HKT

    SMTWTFS
  3. PG256

    16:00

    HKT

    0.9h

    16:55

    USM

    SMTWTFS
  4. KE024

    12:20

    SFO

    13.0h

    18:20

    ICN

    SMTWTFS
  5. KE651

    18:05

    ICN

    5.7h

    21:45

    BKK

    SMTWTFS
  6. PG101

    06:15

    BKK

    1.1h

    07:20

    USM

    SMTWTFS
  7. KE024

    12:20

    SFO

    13.0h

    18:20

    ICN

    SMTWTFS
  8. KE659

    19:45

    ICN

    5.9h

    23:40

    BKK

    SMTWTFS
  9. PG101

    06:15

    BKK

    1.1h

    07:20

    USM

    SMTWTFS
  10. OZ215

    12:50

    SFO

    12.8h

    17:40

    ICN

    S-T-T--
  11. OZ743

    20:20

    ICN

    6.0h

    00:20

    BKK

    SMTWTFS
  12. PG101

    06:15

    BKK

    1.1h

    07:20

    USM

    SMTWTFS
  13. CX879

    12:55

    SFO

    15.0h

    18:55

    HKG

    --T-T-S
  14. CX617

    21:50

    HKG

    3.0h

    23:50

    BKK

    -M-W-FS
  15. PG101

    06:15

    BKK

    1.1h

    07:20

    USM

    SMTWTFS
  16. MU590

    13:00

    SFO

    13.6h

    17:35

    PVG

    S--W-F-
  17. MU8607

    22:15

    PVG

    4.7h

    01:55

    BKK

    SMTWTFS
  18. PG109

    06:10

    BKK

    1.6h

    07:45

    USM

    SMTWTFS
  19. MU590

    13:00

    SFO

    13.6h

    17:35

    PVG

    S--W-F-
  20. MU547

    21:00

    PVG

    4.7h

    00:40

    BKK

    SMTWTFS
  21. PG1113

    05:50

    BKK

    1.6h

    07:25

    USM

    SMTWTFS
  22. MU590

    13:00

    SFO

    13.6h

    17:35

    PVG

    S--W-F-
  23. MU8607

    22:15

    PVG

    4.7h

    01:55

    BKK

    SMTWTFS
  24. PG1113

    05:50

    BKK

    1.6h

    07:25

    USM

    SMTWTFS
  25. JL057

    13:35

    SFO

    10.9h

    16:30

    NRT

    SMTWTFS
  26. JL707

    18:25

    NRT

    6.6h

    23:00

    BKK

    SMTWTFS
  27. PG101

    06:15

    BKK

    1.1h

    07:20

    USM

    SMTWTFS
  28. AC571

    16:35

    SFO

    2.4h

    18:56

    YVR

    SMTWTFS
  29. AC065

    22:45

    YVR

    16.5h

    06:15

    BKK

    SMTWTFS
  30. PG119

    09:00

    BKK

    1.6h

    10:35

    USM

    SMTWTFS

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

These price trend charts carefully monitor and predict how flight prices from San Francisco to Koh Samui will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

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

    Airlines adjust prices for flights from San Francisco to Koh Samui 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 San Francisco (SFO) to Koh Samui (USM) cost?

    According to Trip.com's data, the lowest price is around $1,169.
  • What is the transportation method from the main airport to downtown in Koh Samui?

    • The distance from Samui International Airport to downtown is about 3 km. It takes about 20 minutes by taxi.

How to find a cheap flight from San Francisco to Koh Samui

Understanding the common pitfalls when booking your flight tickets can help you save massively when it comes time to fly. We’ve listed our six essential steps to keep in mind when you’re booking flight tickets to help you find the best price.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

San Francisco to Koh Samui Flight Information

Cheapest nonstop flight price$531
Off-season for travelMarch
Peak season for travelNovember
Flight distance13,161.27 km
Popular airlineEVA Air