Cheap flights from California to Ko Samui from $439
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Ko Samui departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from California to Ko Samui
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Singapore Airlines flights from California to Ko Samui
Our best Singapore Airlines deals on California to Ko Samui flight tickets
China Airlines flights from California to Ko Samui
Our best China Airlines deals on California to Ko Samui flight tickets
See travel insights to Ko Samui from
How to get the cheapest flight ticket from California 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
What is the cheapest month to fly to Ko Samui?
In general, April is the cheapest month to fly from California to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,071. If you don’t want to visit Ko Samui in April, then you should wait until March to fly from California, when ticket prices are also cheap, with an average price of $1,120.
What is the cheapest day to depart on your flight to Ko Samui?
Our data shows that Tuesday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $278. Flights from California to Ko Samui on a Friday will generally be more expensive and average around $444. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
Cheap California to Ko Samui flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from California to Ko Samui
When did momondo last update prices for flights from California to Ko Samui Airport?
Prices for flights from California to Ko Samui Airport were last updated today.
How many operators does momondo search for flights from California to Ko Samui Airport?
As of April 2025, there are 2 operators available to choose from for flights from California to Ko Samui Airport.
How old do you have to be to fly from California to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California 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.
Best airlines flying from California to Ko Samui
Compare and see reviews for airlines that fly from California to Ko Samui with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $873 | Free Cancellation | Rating 8.1 1,290 reviews | |||
| PriceFrom $1,041 | Free Cancellation | Rating 8.4 1,180 reviews |
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from California to Ko Samui?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ko Samui from California.
Can I find flights from California to Ko Samui with flexible booking policies on momondo?
Flights from California 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 California to Ko Samui?
momondo helps you find the best flight between California 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 California to Ko Samui right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ko Samui from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.