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

SFO — USM
May 31 — Jun 71

How to find the cheapest flight from San Francisco to Koh Samui

All the information you need to plan the best SFO to USM flight in 2022: compare San Francisco to Koh Samui flight prices with the expected peak season, weather and rainfall in Koh Samui.

SFO - USM

Price

$880 - $1,498

USM

Temperature

80.6 - 84.2 °F

USM

Rainfall

2.3 - 19.3 inches

Popular inJuneHigh demand for flights, 28% potential price rise
Cheapest inMarchBest time to find cheap flights, 19% potential price drop
Round-trip from$880From San Francisco to Ko Samui
One-way from$677One-way flight from San Francisco to Ko Samui

What is the cheapest day to fly round-trip from San Francisco to Koh Samui?

Friday flights are generally found to be more expensive for flights from San Francisco to Koh Samui. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Koh Samui.

How far in advance should I book a flight from San Francisco to Koh Samui?

To save on the cost of your flight from San Francisco to Koh Samui, book at least 34 days before your planned departure. Booking around this time can save you about 5% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $911 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $911.

What is the cheapest month to fly from San Francisco to Koh Samui?

The best pricing can be found in the month of March. Prices to Koh Samui from San Francisco average $1,081. You can even find prices in March for less than $1,081, as users have found deals to Koh Samui from as low as $819. The month of June appears to be one of the more expensive times to travel to Koh Samui from San Francisco. Flying in the targeted month can save you up to 38%.

When is the cheapest time to fly from San Francisco to Koh Samui (SFO - USM)?

It’s typically best to fly out from San Francisco to Koh Samui in the morning. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap flights from San Francisco to Koh Samui in May, June 2022

The best prices found for SFO to USM flights for May, June
Jun 18 - Aug 15
SFO

San Francisco

USM

Ko Samui

2 stops

34h 25m
USM

Ko Samui

SFO

San Francisco

2 stops

33h 15m
$1,662

Multiple Airlines

View Deal

Deal found 5/25/22

Jun 18 - Jul 23
SFO

San Francisco

USM

Ko Samui

2 stops

34h 35m
USM

Ko Samui

SFO

San Francisco

2 stops

32h 55m
$1,722

Multiple Airlines

View Deal

Deal found 5/25/22

Jun 18 - Jul 25
SFO

San Francisco

USM

Ko Samui

2 stops

34h 25m
USM

Ko Samui

SFO

San Francisco

2 stops

33h 15m
$1,797

Multiple Airlines

View Deal

Deal found 5/25/22

San Francisco to Koh Samui 2022 flight deals

Cheap flights to Koh Samui from San Francisco found for this year
Nov 10 - Nov 24
SFO

San Francisco

USM

Ko Samui

2 stops

28h 30m
USM

Ko Samui

SFO

San Francisco

2 stops

33h 10m
$1,135

Japan Airlines

View Deal

Deal found 5/25/22

Nov 9 - Nov 24
SFO

San Francisco

USM

Ko Samui

2 stops

23h 50m
USM

Ko Samui

SFO

San Francisco

2 stops

19h 15m
$1,210

Multiple Airlines

View Deal

Deal found 5/25/22

Jul 31 - Aug 31
SFO

San Francisco

USM

Ko Samui

2 stops

26h 30m
USM

Ko Samui

SFO

San Francisco

2 stops

38h 15m
$1,449

Multiple Airlines

View Deal

Deal found 5/25/22

Cheap Japan Airlines flights from San Francisco to Koh Samui

Nov 10 - Nov 24
SFO

San Francisco

USM

Ko Samui

2 stops

28h 30m
USM

Ko Samui

SFO

San Francisco

2 stops

33h 10m
$1,135

Japan Airlines

View Deal

Deal found 5/25/22

Jul 14 - Jul 26
SFO

San Francisco

USM

Ko Samui

2 stops

30h 30m
USM

Ko Samui

SFO

San Francisco

2 stops

33h 45m
$1,488

Japan Airlines

View Deal

Deal found 5/24/22

Jul 23 - Jul 31
SFO

San Francisco

USM

Ko Samui

2 stops

40h 45m
USM

Ko Samui

SFO

San Francisco

2 stops

31h 35m
$1,612

Japan Airlines

View Deal

Deal found 5/23/22

Cheap Emirates flights from San Francisco to Koh Samui

Jun 4 - Jun 13
SFO

San Francisco

USM

Ko Samui

3 stops

35h 45m
USM

Ko Samui

SFO

San Francisco

3 stops

35h 50m
$3,062

Emirates

View Deal

Deal found 5/24/22

Jun 5 - Jun 10
SFO

San Francisco

USM

Ko Samui

3 stops

36h 45m
USM

Ko Samui

SFO

San Francisco

2 stops

33h 45m
$3,505

Emirates

View Deal

Deal found 5/25/22

Jun 5 - Jun 10
SFO

San Francisco

USM

Ko Samui

3 stops

36h 45m
USM

Ko Samui

SFO

San Francisco

3 stops

35h 50m
$3,611

Emirates

View Deal

Deal found 5/25/22

Last minute flights from San Francisco to Koh Samui

Late deals on return flights to Koh Samui from San Francisco, departing today and this week
Jun 5 - Jun 10
SFO

San Francisco

USM

Ko Samui

2 stops

32h 45m
USM

Ko Samui

SFO

San Francisco

2 stops

32h 05m
$1,989

Multiple Airlines

View Deal

Deal found 5/25/22

Jun 4 - Jun 13
SFO

San Francisco

USM

Ko Samui

2 stops

28h 30m
USM

Ko Samui

SFO

San Francisco

2 stops

32h 15m
$2,089

Multiple Airlines

View Deal

Deal found 5/24/22

Jun 3 - Jun 12
SFO

San Francisco

USM

Ko Samui

2 stops

28h 30m
USM

Ko Samui

SFO

San Francisco

2 stops

31h 25m
$2,092

Multiple Airlines

View Deal

Deal found 5/24/22

One-way flights to Ko Samui from San Francisco

The cheapest one-way flights from San Francisco to Koh Samui
Sep 1
SFO

San Francisco

USM

Ko Samui

2 stops

29h 20m
$606

Japan Airlines

View Deal

Deal found 5/24/22

Aug 31
SFO

San Francisco

USM

Ko Samui

2 stops

22h 45m
$677

EVA Air

View Deal

Deal found 5/24/22

Sep 1
SFO

San Francisco

USM

Ko Samui

3 stops

31h 30m
$749

Multiple Airlines

View Deal

Deal found 5/24/22

Related info for your journey

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

Which airlines flying from San Francisco to Ko Samui have flexible cancellations due to COVID-19?

Some of the carriers operating flights from San Francisco to Ko Samui that may be offering flexible cancellation policies are Japan Airlines and Singapore Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from San Francisco to Koh Samui for under $1,200 on Cheapflights?

Yes, there are multiple flights from San Francisco to Koh Samui for under $1,200. The cheapest flight booked recently is on Japan Airlines for just $1,135, but on average you can expect to pay $1,599.

Are there last-minute flights available from San Francisco to Koh Samui for under $2,000?

There are currently 20+ open flights from San Francisco to Koh Samui within the next 7 days for less than $2,000.

What are the cheapest airlines flying from San Francisco to Koh Samui round-trip?

According to our current data, Japan Airlines ($1,135), and EVA Air ($1,471) offers the cheapest pricing from San Francisco to Koh Samui.

What are the cheapest airlines to fly from San Francisco to Koh Samui one-way?

The cheapest airlines for a one-way flight from San Francisco to Koh Samui are Japan Airlines ($606), EVA Air ($677), and Cathay Pacific ($1,230).

What are the most popular airlines that fly from San Francisco to Koh Samui?

Consider EVA Air, Cathay Pacific or Japan Airlines when booking your flight. These represent the most popular airlines when flying from San Francisco to Koh Samui.

What are the cheapest flights from San Francisco to Koh Samui?

Looking at all options, your cheapest flight can be booked for $809. While the most popular route (San Francisco - Ko Samui) can be booked for $1,135 on average our data indicates $2,492 when flying from San Francisco to Koh Samui.

Alternative routes for San Francisco to Koh Samui

See prices for flight routes from nearby airports that may be better suited for you.