$5,970+ Cheap flights from San Jose (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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — USM
Jun 17 — Jun 241
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap 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 June 12, 2025.
Round-trip from | $17,390 (oojo) |
|---|---|
One-way from | $5,970 (oojo) |
Find flight deals from San Jose to Ko Samui
Cheapest flights from San Jose to Ko SamuiExplore 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 June 12, 2025.
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 June 12, 2025.
This oojo deal was found by Cheapflights users on 6/11. 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 8/303:00 pmSJC - USM
2 stops37h 15mSingapore Airlines
Sat 9/61:30 pmUSM - SJC
2 stops34h 28mSingapore Airlines
Deal found 6/11![Singapore Airlines logo]()
$17,390
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 June 12, 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 8/30
3:00 pm-6:15 pm
2 stops37h 15m
Ko Samui
Sat 9/6
1:30 pm-9:58 am
2 stops34h 28m
$17,390
San JoseKo Samui
SJC - USM
SJCUSM
San Jose
Mon 11/24
7:40 pm-9:05 pm
2 stops34h 25m
$5,970
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 June 12, 2025.
It’s optimal to fly from San Jose to Ko Samui in the morning. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the afternoon.
Rainfall in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.
Temperature in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).
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 June 12, 2025.
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Food
7.7
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Dec 2024
NRT - LAX
Boarding
8.2
Comfort
7.9
Entertainment
8.0
Overall
8.1
Food
7.7
Crew
8.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Dec 2024
NRT - LAX
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.
Traveling to a place near San Jose?
Book flights to San Jose if you plan to visit one of these locationsKo Tao
Ko Pha Ngan