HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Samui

$1,647+ Cheap flights from San Jose (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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — USM
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Jose to Ko Samui with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 April 15, 2025.

Round-trip from

$1,647
(Gurufare)
From San Jose to Ko Samui
Search Deals

Find 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 April 15, 2025.

This Gurufare deal was found by Cheapflights users on 4/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/203:00 pmSJC - USM
2 stops37h 15mSingapore Airlines
Sat 9/61:30 pmUSM - SJC
2 stops34h 28mSingapore Airlines
Deal found 4/14$1,647
This Gurufare deal was found by Cheapflights users on 4/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/306:15 amSJC - USM
2 stops46h 20mMultiple Airlines
Fri 6/69:30 amUSM - SJC
3 stops36h 40mMultiple Airlines
Deal found 4/15$2,061

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 April 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

Wed 8/20

3:00 pm-6:15 pm

2 stops37h 15m

Ko Samui

Sat 9/6

1:30 pm-9:58 am

2 stops34h 28m

$1,647

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Fri 5/30

6:15 am-6:35 pm

2 stops46h 20m

Ko Samui

Fri 6/6

9:30 am-8:10 am

3 stops36h 40m

$2,061

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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 April 15, 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 April 15, 2025.
Singapore Airlines
8.1
Very good
1,288 reviews

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,288 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Food

7.7

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

Traveling to a place near San Jose?

Book flights to San Jose 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Jose to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Suvarnabhumi flights
San Francisco to Suvarnabhumi flights
Ontario to Suvarnabhumi flights
Burbank to Suvarnabhumi flights
Santa Ana to Suvarnabhumi flights
Las Vegas to Suvarnabhumi flights
San Jose to Suvarnabhumi flights
Los Angeles to Don Mueang Intl flights
Oakland to Suvarnabhumi flights
San Diego to Suvarnabhumi flights
Los Angeles to Phuket City flights
San Francisco to Don Mueang Intl flights
San Francisco to Phuket City flights
San Francisco to Chiang Mai flights
San Jose to Phuket City flights
Sacramento to Suvarnabhumi flights
Oakland to Phuket City flights
Los Angeles to Chiang Mai flights
Ontario to Phuket City flights
Burbank to Phuket City flights
Santa Ana to Phuket City flights
Ontario to Chiang Mai flights
Reno to Suvarnabhumi flights
Santa Rosa to Suvarnabhumi flights
Santa Ana to Chiang Mai flights
Las Vegas to Don Mueang Intl flights
Long Beach to Suvarnabhumi flights
Burbank to Chiang Mai flights
Los Angeles to Ko Samui flights
Los Angeles to Krabi flights
San Francisco to Ko Samui flights
Fresno to Suvarnabhumi flights
San Jose to Chiang Mai flights
San Diego to Phuket City flights
Las Vegas to Phuket City flights
Oakland to Chiang Mai flights
San Francisco to Krabi flights
San Diego to Don Mueang Intl flights
San Jose to Don Mueang Intl flights
Sacramento to Phuket City flights
Santa Ana to Krabi flights
Palm Springs to Suvarnabhumi flights
Las Vegas to Chiang Mai flights
San Francisco to Lampang flights
San Diego to Chiang Mai flights
San Diego to Krabi flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.