$3,816 Cheap Flights from San Jose (SJC) to Samui Intl. Airport (USM)

View $3,816 flight on Wed, Dec 10, 2025Opens in a new window

Popular airlines from Norman Y. Mineta San Jose Intl. Airport (SJC) to Samui Intl. Airport (USM)

Cheap Flights from San Jose to Samui Intl. Airport (SJC-USM)

Prices were available within the past 7 days and start at $3,816 for one-way flights and $5,797 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$5,797 Roundtrip, found 4 days ago
$5,797
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $5,797 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$5,825 Roundtrip, found 4 days ago
$5,825
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $5,825 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$5,845 Roundtrip, found 4 days ago
$5,845
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $5,845 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,259 Roundtrip, found 4 days ago
$6,259
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,259 found 4 days ago
American Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,311 Roundtrip, found 4 days ago
$6,311
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,311 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,454 Roundtrip, found 4 days ago
$6,454
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,454 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,502 Roundtrip, found 4 days ago
$6,502
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,502 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,515 Roundtrip, found 4 days ago
$6,515
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,515 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,528 Roundtrip, found 4 days ago
$6,528
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,528 found 4 days ago
Alaska Airlines
Wed, Dec 10 - Sun, Dec 14
SJC
San Jose
USM
Koh Samui
$6,530 Roundtrip, found 4 days ago
$6,530
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Dec 10 from San Jose to Koh Samui, returning Sun, Dec 14, priced at $6,530 found 4 days ago

Frequently asked questions

How much does a flight from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM) cost?
Secure a cheap one-way flight from $3,816 or cheap return flight from $5,797 from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM)?
December is the cheapest month to fly from SJC to USM. Traveling outside of peak seasons is often the key to landing a great deal.
What is the cheapest airline that flies from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM)?
To find the cheapest airline that'll fly you from SJC to USM, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM)?
Direct flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJC to USM?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM)?
Select a flight from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM) last-minute?
Booking your flight from SJC to USM right before your trip is typically more expensive. However, if you're flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a SJC to USM flight and hotel package?
Securing a SJC to USM flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Norman Y. Mineta San Jose Intl. Airport (SJC) to Ko Samui Airport (USM)?
In most cases, you're able to reschedule or cancel your SJC to USM flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Norman Y. Mineta San Jose Intl.
Destination airport
Samui Intl. Airport
Roundtrip price
$5,796
Distance
8208 mi

Book with confidence

Book with confidence

San Jose to Samui Intl. Airport Flights

The cheapest times to fly from San Jose to Samui Intl. Airport

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Jose to Samui Intl. Airport are during the month of December. You can find some of the cheapest flights from San Jose to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Jose to Samui Intl. Airport

Sunday is one of the best days to book for cheap flights from San Jose to Samui Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Jose to Samui Intl. Airport

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Jose to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $3,816 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Jose to Samui Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Jose to Samui Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Jose to Samui Intl. Airport Flights
*Available to One Key members.