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Ko Samui

$445+ Cheap flights from Fremont, CA to Ko Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — USM
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Fremont to Ko Samui

Keep the following information in mind while searching for Fremont to Ko Samui flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$803
(FlightHub)

One-way from

$445
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,310
Provider with most accurate pricing for San Francisco-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Ko Samui flights.
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From Fremont to Ko Samui
Search Deals
One-way flight from Fremont to Ko Samui
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Fremont to Ko Samui

Cheapest flights from Fremont to Ko Samui
Explore the most affordable flight options available from Fremont to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This SmartFares deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2811:30 pmSFO - USM
2 stops25h 05mEVA Air
Sun 12/79:10 pmUSM - SFO
2 stops24h 20mEVA Air
Deal found 11/2$1,050
This Justfly.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/289:40 amSFO - USM
1 stop31h 20mSingapore Airlines
Sun 12/712:00 pmUSM - SFO
1 stop34h 50mSingapore Airlines
Deal found 11/2$1,081
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/12:30 pmSFO - USM
3 stops35h 40mMultiple Airlines
Mon 12/812:30 pmUSM - SFO
3 stops36h 00mMultiple Airlines
Deal found 11/1$1,157
This Mytrip deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2811:35 amSFO - USM
3 stops29h 25mMultiple Airlines
Sun 12/77:15 amUSM - SFO
2 stops24h 45mMultiple Airlines
Deal found 11/2$1,262
This Justfly.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:40 amSFO - USM
1 stop31h 20mSingapore Airlines
Mon 12/87:45 pmUSM - SFO
1 stop27h 05mSingapore Airlines
Deal found 11/1$1,336
This Justfly.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:40 amSFO - USM
1 stop40h 30mSingapore Airlines
Mon 12/298:55 amUSM - SFO
1 stop37h 55mSingapore Airlines
Deal found 11/2$1,712
This oojo deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:50 pmSFO - USM
2 stops24h 50mEVA Air
Tue 12/239:20 amUSM - SFO
2 stops20h 30mEVA Air
Deal found 11/1$1,748

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Fremont to Ko Samui that are best for you.

Fly from

Fremont

Fly to

Ko Samui

Route

Depart

Return

Price

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Fri 1/9

11:10 pm-7:45 pm

2 stops29h 35m

Ko Samui

Thu 1/29

2:30 pm-7:00 pm

2 stops19h 30m

$882

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Fri 11/28

9:40 am-8:00 am

1 stop31h 20m

Ko Samui

Sun 12/7

12:00 pm-7:50 am

1 stop34h 50m

$1,081

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 12/1

12:00 pm-7:45 am

2 stops28h 45m

Ko Samui

Mon 12/8

12:30 pm-9:30 am

3 stops36h 00m

$1,197

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Fri 11/28

11:35 am-8:00 am

3 stops29h 25m

Ko Samui

Sun 12/7

8:15 am-5:00 pm

3 stops23h 45m

$1,287

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Tue 1/6

9:45 pm-7:35 pm

1 stop30h 50m

Ko Samui

Tue 1/20

11:40 am-4:05 pm

1 stop19h 25m

$1,325

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Tue 1/6

10:55 pm-7:35 pm

1 stop29h 40m

Ko Samui

Mon 1/19

11:40 am-4:05 pm

1 stop19h 25m

$1,325

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Thu 1/1

11:25 am-7:30 am

2 stops29h 05m

Ko Samui

Sat 1/31

11:40 am-4:05 pm

1 stop19h 25m

$1,369

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Tue 1/6

10:55 pm-7:35 pm

1 stop29h 40m

Ko Samui

Sun 1/18

6:05 pm-1:40 pm

2 stops34h 35m

$1,580

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 1/5

9:45 pm-7:35 pm

1 stop30h 50m

Ko Samui

Sun 1/18

11:40 am-9:00 pm

1 stop24h 20m

$1,698

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Thu 11/13

11:10 pm-3:35 pm

2 stops25h 25m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 20 results
1
2

Best time to book a flight from Fremont to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Fremont with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Ko Samui

What is the cheapest month to book a flight from Fremont to Ko Samui?

Currently, October is the cheapest month in which you can book a flight from Fremont to Ko Samui (average of $796). Flying from Fremont to Ko Samui in June is currently the most expensive (average of $1,439). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from FR8 to USM?

Find hourly flight availability from Fremont to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

It’s optimal to fly from Fremont to Ko Samui in the afternoon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Fremont to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Fremont to Ko Samui flight should consider departing on Monday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated November 3, 2025.
Read reviews from past customers who have flown EVA Air and Singapore Airlines from Fremont to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,268 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
EVA Air
8.4
Very good
1,268 reviews
EVA Air
8.4
Very good
1,268 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Singapore Airlines
8.1
Very good
1,391 reviews
EVA Air
8.4
Very good
1,268 reviews

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.0

Boarding

8.4

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from Fremont?

    For a flight from Fremont to Ko Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city. Ko Samui is the only Ko Samui airport and it handles 0 inbound flights from Fremont per day. 2 airlines have flights to Ko Samui from Fremont on a regular basis.

  • How long is the flight from Fremont to Ko Samui?

    A quick flight from Fremont to Ko Samui can take about 31h 20m. Singapore Airlines provides one of the quickest options available for as low as $1,081. Fremont and Ko Samui are separated by a distance of 8173 mi.

  • Can I find deals for flights from Fremont to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Fremont to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Ko Samui.

  • Can I find deals for business class flights from Fremont to Ko Samui?

    Yes. Cheapflights offers flight deals from Fremont to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Fremont to Ko Samui?

    Currently, October is the cheapest month in which you can book a flight from Fremont to Ko Samui (average of $796). Flying from Fremont to Ko Samui in June is currently the most expensive (average of $1,439). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Fremont to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Fremont to Ko Samui

Discover the top 2 airlines that operate flights from Fremont to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$821Average$1,134FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,001Average$1,109FlexibilityNo cancel feeOn-time74%

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