Which airports can I use when flying from San Francisco to Ko Samui?

Flights from San Francisco to Ko Samui usually depart from San Francisco (SFO) and arrive at Ko Samui (USM).

What cabin classes can I book on flights from San Francisco to Ko Samui?

Three cabin classes are available on flights from San Francisco to Ko Samui: • Economy Class • Premium Economy Class • Business Class

Which airports do connecting flights from San Francisco to Ko Samui pass through?

Connecting flights from San Francisco to Ko Samui most commonly pass through: • Singapore Changi (SIN) - 98% of one-stop connections • Hong Kong Intl (HKG) - 2% of one-stop connections

Can I save money by using flexible dates for flights from San Francisco to Ko Samui?

Yes. Flexible dates can save you up to 35% on flights from San Francisco to Ko Samui. Monday is the cheapest departure day at $940 round-trip on average, while Thursday is the most expensive at $1,435, a difference of $495. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Ko Samui?

Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Fishermans Village. These are among the most viewed places in Ko Samui on KAYAK.

How long is a flight from San Francisco to Ko Samui?

A nonstop flight from San Francisco to Ko Samui takes 00m, covering 8,173 miles.

Do I need a passport to fly from San Francisco to Ko Samui?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from San Francisco to Ko Samui looking right now?

One-way fares from San Francisco to Ko Samui are currently higher than usual. Average one-way flight prices are about $736, which is 31% above the typical average for this route.

How much time can I save by choosing a different layover airport from San Francisco to Ko Samui?

Flying via Hong Kong Intl (HKG) gives the shortest average 1-stop total travel time at 26h 14m, compared with 28h 43m via Singapore Changi (SIN).

What is the time difference between San Francisco and Ko Samui?

Ko Samui is 14 hours ahead of San Francisco (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Enterprise Rent-A-Car • Hertz

How much should I expect to pay for a San Francisco to Ko Samui flight?

Round-trip flights from San Francisco to Ko Samui range from $942 to $1,428, with an average of $1,143 over the past 12 months. Anything below $942 counts as a good deal.

What's the cheapest day of the week to fly from San Francisco to Ko Samui?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from San Francisco to Ko Samui. It’s 18% cheaper than the average day, while Thursday is the most expensive, with prices 25% higher.

What’s the cheapest month to fly from San Francisco to Ko Samui?

•October is the cheapest month to fly from San Francisco to Ko Samui at $884 round-trip. •December ($2,651) and July ($1,645) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 199% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Which airline is the cheapest to fly from San Francisco to Ko Samui?

Cathay Pacific ($820) and Singapore Airlines ($909) are the cheapest airlines to fly round-trip from San Francisco to Ko Samui according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from San Francisco to Ko Samui?

Singapore Changi (SIN) is the most popular layover for the San Francisco to Ko Samui route. 98% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via SIN.

What is the cheapest layover airport when flying from San Francisco to Ko Samui?

Flights via Singapore Changi (SIN) offer the most affordable fares, with an average round-trip price of $1,189. Based on KAYAK data over the past 3 months.

When flying from San Francisco to Ko Samui which airport offers the shortest layover?

Hong Kong Intl (HKG) had the shortest average connection time for San Francisco to Ko Samui layovers at 17h 27m over the past 3 months.

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Price, demand and travel trends for San Francisco to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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What's the cheapest day of the week to fly from San Francisco to Ko Samui?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from San Francisco to Ko Samui. It’s 18% cheaper than the average day, while Thursday is the most expensive, with prices 25% higher.
What’s the cheapest month to fly from San Francisco to Ko Samui? KAYAK internal proprietary data takes all prices for each month over the last 12 months for round-trip flights from San Francisco to Ko Samui, removes the top 0.1% to account for outliers and then takes the median of all values for each month.: •October is the cheapest month to fly from San Francisco to Ko Samui at $884 round-trip.
•December ($2,651) and July ($1,645) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 199% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Expert advice

Our travel experts

Daniel Scheffler

Expert on Sun Country Air

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Low season	November
High season	May
Cheapest flight	$373

One-way flight from San Francisco to Ko Samui

When to book flights from San Francisco to Ko Samui

Are your dates flexible? Find out the best times to travel from San Francisco to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from San Francisco to Ko Samui?
Three cabin classes are available on flights from San Francisco to Ko Samui:

• Economy Class
• Premium Economy Class
• Business Class
How long is a flight from San Francisco to Ko Samui?
A nonstop flight from San Francisco to Ko Samui takes 00m, covering 8,173 miles.
Do I need a passport to fly from San Francisco to Ko Samui?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a San Francisco to Ko Samui flight?
Round-trip flights from San Francisco to Ko Samui range from $942 to $1,428, with an average of $1,143 over the past 12 months. Anything below $942 counts as a good deal.
How are flight prices from San Francisco to Ko Samui looking right now?
One-way fares from San Francisco to Ko Samui are currently higher than usual. Average one-way flight prices are about $736, which is 31% above the typical average for this route.
What car rental options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:

• Drive Car Rental
• Alamo
• Sixt
• Enterprise Rent-A-Car
• Hertz
Which airports can I use when flying from San Francisco to Ko Samui?
Flights from San Francisco to Ko Samui usually depart from San Francisco (SFO) and arrive at Ko Samui (USM).
Which airports do connecting flights from San Francisco to Ko Samui pass through?
Connecting flights from San Francisco to Ko Samui most commonly pass through:

• Singapore Changi (SIN) - 98% of one-stop connections
• Hong Kong Intl (HKG) - 2% of one-stop connections
Can I save money by using flexible dates for flights from San Francisco to Ko Samui?
Yes. Flexible dates can save you up to 35% on flights from San Francisco to Ko Samui. Monday is the cheapest departure day at $940 round-trip on average, while Thursday is the most expensive at $1,435, a difference of $495.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from San Francisco to Ko Samui?
Flying via Hong Kong Intl (HKG) gives the shortest average 1-stop total travel time at 26h 14m, compared with 28h 43m via Singapore Changi (SIN).
What is the time difference between San Francisco and Ko Samui?
Ko Samui is 14 hours ahead of San Francisco (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Fishermans Village. These are among the most viewed places in Ko Samui on KAYAK.

If your dates are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average $940, about $495 less than Thursday fares (34% savings) based on the last 12 months.
If you can choose when to travel, plan your San Francisco to Ko Samui trip for October. Fares historically average $884 round-trip in that month - typically $1,767 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

• Ozo Chaweng Samui - Sha Extra Plus
• Melia Koh Samui
• Amari Koh Samui

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Cheap Flights from San Francisco to Ko Samui (SFO-USM)

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Price, demand and travel trends for San Francisco to Ko Samui flights

What's the cheapest day of the week to fly from San Francisco to Ko Samui?

What’s the cheapest month to fly from San Francisco to Ko Samui?

Which airline is the cheapest to fly from San Francisco to Ko Samui?

What’s the most popular layover airport when flying from San Francisco to Ko Samui?

What is the cheapest layover airport when flying from San Francisco to Ko Samui?

When flying from San Francisco to Ko Samui which airport offers the shortest layover?

Expert advice for your flight from San Francisco to Ko Samui

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