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Ko Samui

$780+ Cheap flights from Fremont, CA to Ko Samui (USM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — USM
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:45 am
SFO
-
USM
1 stop39h 35m
Singapore Airlines
Sun 9/278:40 am
USM
-
SFO
1 stop39h 10m
Singapore Airlines
Deal found 1/27$780
This Justfly.com deal was found by Cheapflights users on 1/27. 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.
Sun 4/2611:00 am
SFO
-
USM
1 stop41h 50m
Singapore Airlines
Sun 5/108:40 am
USM
-
SFO
1 stop38h 30m
Singapore Airlines
Deal found 1/27$809
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:00 am
SFO
-
USM
1 stop30h 45m
Singapore Airlines
Thu 5/76:15 pm
USM
-
SFO
1 stop28h 55m
Singapore Airlines
Deal found 1/28$859
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:45 am
SFO
-
USM
1 stop32h 25m
Singapore Airlines
Tue 9/2211:05 am
USM
-
SFO
1 stop36h 45m
Singapore Airlines
Deal found 1/27$864
This oojo deal was found by Cheapflights users on 1/27. 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.
Sat 4/1112:50 am
SFO
-
USM
2 stops30h 00m
Multiple Airlines
Thu 4/302:35 pm
USM
-
SFO
2 stops19h 55m
Multiple Airlines
Deal found 1/27$876
This oojo deal was found by Cheapflights users on 1/27. 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.
Sat 5/212:50 am
SFO
-
USM
2 stops29h 40m
Multiple Airlines
Sun 5/319:15 am
USM
-
SFO
2 stops25h 15m
Multiple Airlines
Deal found 1/27$877
This oojo deal was found by Cheapflights users on 1/27. 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.
Thu 9/1712:50 am
SFO
-
USM
2 stops30h 00m
Multiple Airlines
Sun 9/272:35 pm
USM
-
SFO
2 stops19h 55m
Multiple Airlines
Deal found 1/27$895
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:00 am
SFO
-
USM
1 stop40h 20m
Singapore Airlines
Thu 4/3011:05 am
USM
-
SFO
1 stop36h 05m
Singapore Airlines
Deal found 1/27$936
This BusinessClass deal was found by Cheapflights users on 1/28. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:50 am
SFO
-
USM
2 stops23h 55m
Multiple Airlines
Wed 5/62:35 pm
USM
-
SFO
2 stops19h 55m
Multiple Airlines
Deal found 1/28$941
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:50 am
SFO
-
USM
2 stops22h 55m
EVA Air
Sun 5/313:50 pm
USM
-
SFO
2 stops28h 55m
EVA Air
Deal found 1/27$975
This oojo deal was found by Cheapflights users on 1/27. 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.
Thu 3/2612:00 pm
SFO
-
USM
2 stops29h 45m
EVA Air
Thu 4/22:00 pm
USM
-
SFO
2 stops20h 00m
EVA Air
Deal found 1/27$978

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$809
(Justfly.com)

Popular in

July

Cheapest in

November

Average price

$1,291
Provider with most accurate pricing for San Francisco-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Ko Samui flights.
Search Deals
From Fremont to Ko Samui
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($305 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Sun 4/26

12:50 am-1:45 pm

2 stops22h 55m

Ko Samui

Tue 5/5

9:15 am-4:10 pm

2 stops20h 55m

$991

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 4/27

11:00 am-7:45 am

1 stop30h 45m

Ko Samui

Sun 5/10

7:45 pm-9:10 am

1 stop27h 25m

$1,029

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sat 4/25

12:50 am-1:45 pm

2 stops22h 55m

Ko Samui

Mon 5/4

9:15 am-8:10 pm

2 stops24h 55m

$1,045

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Wed 3/18

10:40 am-6:50 pm

1 stop42h 10m

Ko Samui

Sun 3/22

8:55 am-8:50 am

1 stop37h 55m

$1,059

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Mon 4/27

11:00 am-5:20 pm

1 stop40h 20m

Ko Samui

Fri 5/8

7:45 pm-9:10 am

1 stop27h 25m

$1,079

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sat 4/25

11:00 am-6:50 pm

1 stop41h 50m

Ko Samui

Wed 5/6

8:40 am-9:10 am

1 stop38h 30m

$1,079

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sun 4/26

11:00 am-7:45 am

1 stop30h 45m

Ko Samui

Sun 5/10

7:45 pm-9:10 am

1 stop27h 25m

$1,079

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Fri 4/24

11:00 am-6:50 pm

1 stop41h 50m

Ko Samui

Sun 5/10

7:45 pm-9:10 am

1 stop27h 25m

$1,079

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sat 4/25

11:00 am-6:50 pm

1 stop41h 50m

Ko Samui

Sun 5/10

8:40 am-9:10 am

1 stop38h 30m

$1,079

San FranciscoKo Samui

SFO - USM

SFOUSM

San Francisco

Sun 4/26

11:00 am-7:45 am

1 stop30h 45m

Ko Samui

Sat 5/9

6:15 pm-9:10 am

1 stop28h 55m

$1,145

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 13 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 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 January 29, 2026.

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.

How much does it cost to fly round-trip from Fremont to Ko Samui?

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 January 29, 2026.
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
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
EVA Air
8.4
Very good
1,334 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Singapore Airlines
8.2
Very good
1,440 reviews
EVA Air
8.4
Very good
1,334 reviews

Entertainment

8.0

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Food

8.1

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.

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 22h 55m. EVA Air provides one of the quickest options available for as low as $991. Fremont and Ko Samui are separated by a distance of 8173 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

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

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$796Average$1,389FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,001Average$1,093FlexibilityNo cancel feeOn-time74%

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