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Cheap flights from San Jose, California to Ko Samui from $1,603

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Jose, California to Ko Samui departing on 6/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from San Jose, California to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
10:15 am - 11:55 am
SJC
-
USM
35h 40m
3 stops
Qatar Airways Logo
8:35 pm - 6:45 pm
USM
-
SJC
36h 10m
3 stops
$5,863Qatar Airways
Sun, Sep 6 - Sat, Sep 19
Cathay Pacific Logo
12:03 pm - 7:40 pm
SJC
-
USM
41h 37m
2 stops
Cathay Pacific Logo
11:55 am - 10:01 pm
USM
-
SJC
48h 06m
2 stops
$7,013Cathay Pacific
Sun, Sep 6 - Sat, Sep 19
Multiple Airlines Logo
12:03 pm - 7:40 pm
SJC
-
USM
41h 37m
2 stops
Multiple Airlines Logo
11:55 am - 6:45 pm
USM
-
SJC
44h 50m
2 stops
$7,263Multiple Airlines
Sun, Sep 6 - Fri, Sep 18
Multiple Airlines Logo
6:00 am - 7:40 pm
SJC
-
USM
47h 40m
2 stops
Multiple Airlines Logo
11:55 am - 6:45 pm
USM
-
SJC
44h 50m
2 stops
$7,513Multiple Airlines
Sat, Sep 5 - Fri, Sep 18
Multiple Airlines Logo
2:30 pm - 7:40 pm
SJC
-
USM
39h 10m
2 stops
Multiple Airlines Logo
11:55 am - 6:45 pm
USM
-
SJC
44h 50m
2 stops
$7,558Multiple Airlines
Mon, Sep 7 - Fri, Sep 18
Multiple Airlines Logo
2:30 pm - 7:40 pm
SJC
-
USM
39h 10m
2 stops
Multiple Airlines Logo
11:55 am - 6:45 pm
USM
-
SJC
44h 50m
2 stops
$7,858Multiple Airlines
Sun, Sep 6 - Sun, Sep 20
Multiple Airlines Logo
12:03 pm - 7:40 pm
SJC
-
USM
41h 37m
2 stops
Multiple Airlines Logo
11:55 am - 6:45 pm
USM
-
SJC
44h 50m
2 stops
$8,108Multiple Airlines
Sat, Sep 5 - Sun, Sep 20
Multiple Airlines Logo
2:30 pm - 7:40 pm
SJC
-
USM
39h 10m
2 stops
Multiple Airlines Logo
11:55 am - 3:51 pm
USM
-
SJC
41h 56m
2 stops
$8,153Multiple Airlines
Mon, Sep 7 - Sun, Sep 20
Cathay Pacific Logo
6:20 am - 7:10 am
SJC
-
USM
34h 50m
3 stops
Cathay Pacific Logo
11:55 am - 10:50 pm
USM
-
SJC
48h 55m
2 stops
$11,920Cathay Pacific
Sun, Sep 6 - Sat, Sep 19

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Cathay Pacific flights from San Jose, California to Ko Samui

Our best Cathay Pacific deals on San Jose, California to Ko Samui flight tickets
Cathay Pacific
Sep 6
SJC12:03 pmSan Jose
41h 37m
2 stops
USM7:40 pmKo Samui
Sep 19
USM11:55 amKo Samui
48h 06m
2 stops
SJC10:01 pmSan Jose
$7,013
Cathay Pacific
Sep 6
SJC6:20 amSan Jose
34h 50m
3 stops
USM7:10 amKo Samui
Sep 19
USM11:55 amKo Samui
48h 55m
2 stops
SJC10:50 pmSan Jose
$11,920

momondo Fare Finder

 
Customize your flight search to find flights from San Jose, California 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, momondo users made 832,500 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from San Jose, California to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sun 9/6

10:15 am-11:55 am

3 stops35h 40m

Ko Samui

Sat 9/19

8:35 pm-6:45 pm

3 stops36h 10m

$5,863

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sun 9/6

12:03 pm-7:40 pm

2 stops41h 37m

Ko Samui

Sat 9/19

11:55 am-10:01 pm

2 stops48h 06m

$7,013

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sun 9/6

12:03 pm-7:40 pm

2 stops41h 37m

Ko Samui

Fri 9/18

11:55 am-6:45 pm

2 stops44h 50m

$7,263

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sat 9/5

6:00 am-7:40 pm

2 stops47h 40m

Ko Samui

Fri 9/18

11:55 am-6:45 pm

2 stops44h 50m

$7,513

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Mon 9/7

2:30 pm-7:40 pm

2 stops39h 10m

Ko Samui

Fri 9/18

11:55 am-6:45 pm

2 stops44h 50m

$7,558

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sun 9/6

2:30 pm-7:40 pm

2 stops39h 10m

Ko Samui

Sun 9/20

11:55 am-6:45 pm

2 stops44h 50m

$7,858

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sat 9/5

12:03 pm-7:40 pm

2 stops41h 37m

Ko Samui

Sun 9/20

11:55 am-6:45 pm

2 stops44h 50m

$8,108

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Mon 9/7

2:30 pm-7:40 pm

2 stops39h 10m

Ko Samui

Sun 9/20

11:55 am-3:51 pm

2 stops41h 56m

$8,153

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sun 9/6

6:20 am-7:10 am

3 stops34h 50m

Ko Samui

Sat 9/19

11:55 am-10:50 pm

2 stops48h 55m

$11,920
Cheapest one-way

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Tue 6/30

6:01 am-7:40 pm

2 stops47h 39m

$1,603

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

When to book flights from San Jose, California to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from San Jose, California to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Jose, California to Ko Samui (SJC to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Jose, California to Ko Samui

Fastest flight time

34h 29m

Direct flights

None
The fastest flight from San Jose, California to Ko Samui takes 34h 29m
There are no direct flights from San Jose, California to Ko Samui. There are no popular flight routes from San Jose, California to Ko Samui.
Search flight deals

Frequently asked questions about flying from San Jose, California to Ko Samui

  • How far is San Jose to Ko Samui by plane?

    The distance between San Jose and Ko Samui is about 8208.0 mi. Flights usually cover this in 34h 29m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from San Jose Airport to Ko Samui Airport?

    Prices for flights from San Jose Airport to Ko Samui Airport were last updated today.

  • How old do you have to be to fly from San Jose Airport to Ko Samui Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Jose Airport to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from San Jose, California to Ko Samui

  • How do I get Price Alerts for flights from San Jose, California to Ko Samui?

    Confirm your travel details to search for the latest offers for flights from San Jose, California to Ko Samui. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from San Jose, California to Ko Samui with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao
Khanom

Why use momondo?

Why should I use momondo to find a flight deal from San Jose to Ko Samui?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Jose to Ko Samui. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Jose to Ko Samui with flexible booking policies on momondo?

Flights from San Jose to Ko Samui with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Jose to Ko Samui?

momondo helps you find the best flight between San Jose and Ko Samui by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Jose to Ko Samui right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Jose to Ko Samui now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ko Samui and let you know when they change.

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