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Ko Samui

$836+ Cheap flights from San Jose, CA (SJC) 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — USM
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from San Jose to Ko Samui

One-way flights from San Jose to Ko Samui
Search for one-way flight options from San Jose to Ko Samui. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

This Qatar Airways deal was found by Cheapflights users on 12/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:00 amSJC - USM
3 stops35h 40mQatar Airways
Deal found 12/13$836

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose 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 December 15, 2025.
Use the filters below to find and compare flights from San Jose to Ko Samui that are best for you.

Fly from

San Jose

Fly to

Ko Samui

Route

Depart

Return

Price

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sat 3/7

8:00 am-10:40 am

3 stops35h 40m

$836

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Best time to book a flight from San Jose to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from San Jose 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 San Jose to Ko Samui

What is the cheapest month to book a flight from San Jose, California to Ko Samui?

Currently, October is the cheapest month in which you can book a flight from San Jose, California to Ko Samui (average of $796). Flying from San Jose, California to Ko Samui in December is currently the most expensive (average of $2,044). 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 SJC to USM?

Find hourly flight availability from San Jose 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 December 15, 2025.

It’s optimal to fly from San Jose, California to Ko Samui in the morning. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose 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 San Jose, California to Ko Samui?

    Currently, October is the cheapest month in which you can book a flight from San Jose, California to Ko Samui (average of $796). Flying from San Jose, California to Ko Samui in December is currently the most expensive (average of $2,044). 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

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