$635+ Cheap flights from Ko Samui (USM) to California
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Ko Samui to California 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 Ko Samui to California
Best flights from Ko Samui to CaliforniaDiscover carefully curated flight deals from Ko Samui to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.
Discover carefully curated flight deals from Ko Samui to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.
This Booking.com deal was found by Cheapflights users on 12/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cathay Pacific deal was found by Cheapflights users on 12/11. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Qatar Airways deal was found by Cheapflights users on 12/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 12/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals from Ko Samui to California
Keep the following information in mind while searching for Ko Samui to California flight deals. Data was last updated December 14, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $891 (Booking.com) |
One-way from | $635 (China Airlines) |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Ko Samui to California that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Mon 1/26
7:00 pm-7:05 pm
2 stops39h 05m
Los Angeles
Mon 2/2
1:20 pm-8:05 am
2 stops27h 45m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Thu 3/12
11:40 am-10:15 am
1 stop36h 35m
Los Angeles
Mon 3/16
11:55 am-7:10 am
2 stops29h 15m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Thu 3/12
6:15 pm-1:50 pm
2 stops33h 35m
Los Angeles
Mon 3/16
4:10 pm-11:55 am
2 stops29h 45m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Mon 1/26
11:40 am-4:20 pm
1 stop19h 40m
Los Angeles
Mon 2/2
10:55 am-7:35 pm
1 stop41h 40m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Thu 1/22
2:05 pm-7:25 pm
2 stops20h 20m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Thu 1/22
11:40 am-8:55 pm
1 stop24h 15m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Thu 1/8
7:35 pm-6:50 am
2 stops26h 15m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Sun 1/25
7:15 am-6:50 am
2 stops38h 35m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Sun 1/4
7:45 pm-6:50 am
3 stops50h 05m
Ko SamuiLos Angeles
USM - LAX
USMLAX
Ko Samui
Thu 1/8
7:00 pm-6:50 am
2 stops26h 50m
Best time to book a flight from Ko Samui to California
Have a flexible travel schedule? Discover the best time to fly to California from Ko Samui with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ko Samui to California
What is the cheapest time of day to fly from USM to CA?
Find hourly flight availability from Ko Samui to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 14, 2025.
A simple way to save on the total cost of your ticket is to fly from Ko Samui to California at noon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Ko Samui to California?
Use this chart to determine the cheapest time to fly round-trip from Ko Samui to California. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Ko Samui to California flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.