What is the cheapest airline that flies from San Jose to Ko Samui?

Cathay Pacific is the most popular carrier operating from San Jose to Ko Samui

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.

$91 Cheap Flights from San Jose to Ko Samui in 2025/26

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Find the cheapest flights from San Jose to Ko Samui

Round-trip

One-way

Last minute

Cheap round-trip flights

10:24 am - 10:40 amSJC-USM

33h 16m3 stops

7:35 pm - 4:44 pmUSM-SJC

36h 09m3 stops

$1,799Qatar Airways

Find Deal

Fri, Jan 2 - Mon, Feb 2

1:00 pm - 10:10 amSJC-USM

31h 10m3 stops

5:55 pm - 5:20 pmUSM-SJC

37h 25m3 stops

$1,910Qatar Airways

Find Deal

Sun, Sep 28 - Sun, Oct 5

10:24 am - 8:25 amSJC-USM

31h 01m3 stops

7:35 pm - 4:44 pmUSM-SJC

36h 09m3 stops

$2,019Qatar Airways

Find Deal

Tue, Dec 30 - Mon, Feb 2

7:07 pm - 9:05 pmSJC-USM

34h 58m2 stops

1:25 pm - 10:38 amUSM-SJC

36h 13m2 stops

$4,019Singapore Airlines

Find Deal

Thu, Dec 25 - Sun, Jan 4

Qatar Airways flights from San Jose to Ko Samui

Our best Qatar Airways deals on San Jose to Ko Samui flight tickets

Qatar Airways

Jan 2

SJC10:24 amSan Jose

33h 16m

3 stops

USM10:40 amKo Samui

Feb 2

USM7:35 pmKo Samui

36h 09m

3 stops

SJC4:44 pmSan Jose

$1,799

Find similar

Qatar Airways

Sep 28

SJC1:00 pmSan Jose

31h 10m

3 stops

USM10:10 amKo Samui

Oct 5

USM5:55 pmKo Samui

37h 25m

3 stops

SJC5:20 pmSan Jose

$1,910

Find similar

Qatar Airways

Dec 30

SJC10:24 amSan Jose

31h 01m

3 stops

USM8:25 amKo Samui

Feb 2

USM7:35 pmKo Samui

36h 09m

3 stops

SJC4:44 pmSan Jose

$2,019

Find similar

Singapore Airlines flights from San Jose to Ko Samui

Our best Singapore Airlines deals on San Jose to Ko Samui flight tickets

Singapore Airlines

Sep 20

SJC6:15 amSan Jose

48h 55m

2 stops

USM9:10 pmKo Samui

Sep 24

USM1:30 pmKo Samui

34h 28m

2 stops

SJC9:58 amSan Jose

$2,061

Find similar

Singapore Airlines

Sep 20

SJC6:15 amSan Jose

48h 55m

3 stops

USM9:10 pmKo Samui

Sep 24

USM1:30 pmKo Samui

34h 28m

2 stops

SJC9:58 amSan Jose

$2,066

Find similar

Singapore Airlines

Sep 20

SJC6:15 amSan Jose

48h 55m

3 stops

USM9:10 pmKo Samui

Sep 24

USM4:25 pmKo Samui

40h 00m

3 stops

SJC6:25 pmSan Jose

$2,159

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Fri 1/2

10:24 am-10:40 am

3 stops33h 16m

Ko Samui

Mon 2/2

7:35 pm-4:44 pm

3 stops36h 09m

$1,799

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Sun 9/28

1:00 pm-10:10 am

3 stops31h 10m

Ko Samui

Sun 10/5

5:55 pm-5:20 pm

3 stops37h 25m

$1,910

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Tue 12/30

10:24 am-8:25 am

3 stops31h 01m

Ko Samui

Mon 2/2

7:35 pm-4:44 pm

3 stops36h 09m

$2,019

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Thu 12/25

7:07 pm-9:05 pm

2 stops34h 58m

Ko Samui

Sun 1/4

1:25 pm-10:38 am

2 stops36h 13m

$4,019

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Thu 10/16

8:15 pm-6:35 pm

2 stops32h 20m

$822

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Wed 11/12

6:13 pm-9:05 pm

2 stops35h 52m

$919

San JoseKo Samui

SJC - USM

SJCUSM

San Jose

Tue 11/11

1:00 pm-1:05 pm

2 stops33h 05m

$959

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from San Jose to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Ko Samui?

Our data shows that Sunday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $172. Flights from San Jose to Ko Samui on a Friday will generally be more expensive and average around $519. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our data shows that the cheapest San Jose to Ko Samui flights are usually those with departure times in the morning. Our users have found flights to Ko Samui in the morning for as low as $456. In the evening is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $556 per ticket.

When to book flights from San Jose to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from San Jose 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 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 to Ko Samui

Direct flights	None

There are no direct flights from San Jose to Ko Samui. There are no popular flight routes from San Jose to Ko Samui.

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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 31h 01m, 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.

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.