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Ko Samui

$1,348+ Cheap flights from San Jose, CA (SJC) 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — USM
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from San Jose to Ko Samui

Cheapest flights from San Jose to Ko Samui
Explore the most affordable flight options available from San Jose to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This KAYAK deal was found by Cheapflights users on 1/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:29 pm
SJC
-
USM
3 stops34h 26m
Multiple Airlines
Tue 3/312:00 pm
USM
-
SJC
3 stops33h 28m
Multiple Airlines
Deal found 1/26$1,348
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:55 pm
SJC
-
USM
2 stops35h 15m
Multiple Airlines
Sun 9/271:30 pm
USM
-
SJC
2 stops32h 45m
Multiple Airlines
Deal found 1/27$1,593
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:02 pm
SJC
-
USM
3 stops32h 28m
Qatar Airways
Sun 9/275:55 pm
USM
-
SJC
3 stops36h 23m
Qatar Airways
Deal found 1/27$1,962
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:16 am
SJC
-
USM
3 stops36h 19m
Qatar Airways
Fri 3/208:30 pm
USM
-
SJC
3 stops37h 30m
Qatar Airways
Deal found 1/27$2,462
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:00 am
SJC
-
USM
2 stops47h 35m
Multiple Airlines
Fri 3/207:55 am
USM
-
SJC
3 stops27h 26m
Multiple Airlines
Deal found 1/27$7,329

Find flight deals from San Jose to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 28, 2026.

Round-trip from

$1,348
(KAYAK)
From San Jose to Ko Samui
Search Deals

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 January 28, 2026.
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

Tue 3/24

2:29 pm-2:55 pm

3 stops34h 26m

Ko Samui

Tue 3/31

2:00 pm-9:28 am

3 stops33h 28m

$1,348

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Fri 3/13

10:16 am-12:35 pm

3 stops36h 19m

Ko Samui

Fri 3/20

8:30 pm-8:00 pm

3 stops37h 30m

$2,462

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Fri 3/13

6:00 am-7:35 pm

2 stops47h 35m

Ko Samui

Fri 3/20

7:55 am-9:21 pm

3 stops27h 26m

$7,329

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

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 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 January 28, 2026.

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.

  • How long is the flight from San Jose, California to Ko Samui?

    There are many flights that can get you from San Jose, California to Ko Samui in 36h 19m. Fly via Qatar Airways to get the fastest option. The distance between San Jose, California and Ko Samui is about 8203 mi.

  • 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.

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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