HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Samui

$461+ Cheap flights from Irvine, CA to Ko Samui (USM)

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irvine to Ko Samui 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 Irvine to Ko Samui

Cheapest flights from Irvine to Ko Samui
Explore the most affordable flight options available from Irvine to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:30 pm
LAX
-
USM
1 stop27h 50m
Singapore Airlines
Mon 6/88:40 am
USM
-
LAX
1 stop26h 40m
Singapore Airlines
Deal found 1/27$706
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:40 pm
LAX
-
USM
1 stop29h 10m
Singapore Airlines
Tue 9/1511:05 am
USM
-
LAX
1 stop24h 45m
Singapore Airlines
Deal found 1/28$789
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:30 pm
LAX
-
USM
1 stop29h 20m
Singapore Airlines
Thu 4/3011:05 am
USM
-
LAX
1 stop24h 15m
Singapore Airlines
Deal found 1/27$848
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 4/1512:35 am
LAX
-
USM
2 stops30h 15m
Multiple Airlines
Thu 4/302:00 pm
USM
-
LAX
2 stops21h 10m
Multiple Airlines
Deal found 1/27$876
This oojo deal was found by Cheapflights users on 1/27. 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.
Sat 4/1112:35 am
LAX
-
USM
2 stops24h 10m
Multiple Airlines
Sun 4/199:15 am
USM
-
LAX
2 stops25h 55m
Multiple Airlines
Deal found 1/27$877
This Justfly.com deal was found by Cheapflights users on 1/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:30 pm
LAX
-
USM
1 stop27h 50m
Singapore Airlines
Wed 5/2711:05 am
USM
-
LAX
1 stop24h 15m
Singapore Airlines
Deal found 1/27$889

Find flight deals from Irvine to Ko Samui

Keep the following information in mind while searching for Irvine to Ko Samui flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$706
(FlightHub)

One-way from

$461
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$997
Provider with most accurate pricing for Los Angeles-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Ko Samui flights.
Search Deals
From Irvine to Ko Samui
Search Deals
One-way flight from Irvine to Ko Samui
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($234 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Irvine to Ko Samui that are best for you.

Fly from

Irvine

Fly to

Ko Samui

Route

Depart

Return

Price

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Thu 4/16

11:30 pm-6:50 pm

1 stop29h 20m

Ko Samui

Thu 4/30

11:05 am-9:20 pm

1 stop24h 15m

$848

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 3/3

10:50 pm-3:35 pm

2 stops25h 45m

Ko Samui

Tue 3/31

10:05 am-9:10 pm

2 stops25h 05m

$933

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 3/1

10:05 pm-6:50 pm

1 stop29h 45m

Ko Samui

Thu 3/12

8:55 am-8:55 pm

1 stop26h 00m

$937

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 3/3

10:05 pm-6:50 pm

1 stop29h 45m

Ko Samui

Tue 3/31

7:45 pm-7:10 pm

1 stop37h 25m

$939

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 3/1

10:50 pm-3:40 pm

2 stops25h 50m

Ko Samui

Thu 3/12

2:30 pm-8:00 pm

2 stops19h 30m

$1,029

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 2/2

11:30 am-7:25 am

2 stops28h 55m

Ko Samui

Mon 2/16

7:00 pm-5:50 pm

2 stops37h 50m

$1,045

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Thu 3/26

12:05 am-8:25 pm

2 stops30h 20m

Ko Samui

Wed 4/8

5:50 pm-7:10 am

2 stops27h 20m

$1,165

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 3/31

11:40 am-7:30 am

2 stops29h 50m

Ko Samui

Wed 4/8

9:00 pm-7:10 am

2 stops24h 10m

$1,185

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 3/13

8:50 pm-8:00 am

1 stop21h 10m

Ko Samui

Fri 3/20

8:55 am-8:55 pm

1 stop26h 00m

$1,185

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sun 3/29

11:40 am-7:30 am

2 stops29h 50m

Ko Samui

Wed 4/8

7:55 pm-7:10 am

2 stops25h 15m

$1,198

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Irvine to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Irvine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Irvine to Ko Samui

What is the cheapest month to book a flight from Irvine to Ko Samui?

Currently, September is the cheapest month in which you can book a flight from Irvine to Ko Samui (average of $686). Flying from Irvine to Ko Samui in February is currently the most expensive (average of $1,193). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IR9 to USM?

Find hourly flight availability from Irvine to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 17% on flights from Irvine to Ko Samui by exploring options for tickets in the morning.

What is the cheapest day to fly from Irvine to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Irvine to Ko Samui flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated January 29, 2026.
Read through reviews of airlines operating flights from Irvine to Ko Samui, such as EVA Air and Singapore Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
EVA Air
8.4
Very good
1,334 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.
Singapore Airlines
8.2
Very good
1,440 reviews
EVA Air
8.4
Very good
1,334 reviews

Comfort

8.3

Entertainment

8.0

Food

8.1

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
8.0
Excellent

Jolene,Jan 2026

SGN - TPE

Everything was good. I asked for aisle seating as I must stretch my leg out because of back and pelvis issues. Sometimes I don't always get it. But I did for all 3 of my flights for my destination. It was very nice.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from Irvine?

    Ko Samui (USM) is the airport you will fly into if you book a flight from Irvine to Ko Samui. You should not have trouble finding flights to Ko Samui from Irvine; the airport handles an average of 0 inbound flights from Irvine per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Ko Samui airport from Irvine. It is only a 2.1 mi journey from Ko Samui (USM) to Ko Samui’s city center.

  • How long is the flight from Irvine to Ko Samui?

    Singapore Airlines can get you from Irvine to Ko Samui in just under 29h 20m. Your travel time can differ by up to . There are 8508 mi between Irvine and Ko Samui.

  • Can I find deals for flights from Irvine to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Irvine to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Ko Samui.

  • Can I find deals for business class flights from Irvine to Ko Samui?

    Yes. Cheapflights offers flight deals from Irvine to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Ko Samui?

    Currently, September is the cheapest month in which you can book a flight from Irvine to Ko Samui (average of $686). Flying from Irvine to Ko Samui in February is currently the most expensive (average of $1,193). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ko Samui?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Suvarnabhumi flights
San Francisco to Suvarnabhumi flights
Ontario to Suvarnabhumi flights
Los Angeles to Don Mueang Intl flights
Santa Ana to Suvarnabhumi flights
Burbank to Suvarnabhumi flights
San Francisco to Don Mueang Intl flights
San Jose to Suvarnabhumi flights
Las Vegas to Suvarnabhumi flights
San Diego to Suvarnabhumi flights
Los Angeles to Phuket City flights
Oakland to Suvarnabhumi flights
San Francisco to Phuket City flights
Sacramento to Suvarnabhumi flights
Los Angeles to Chiang Mai flights
Reno to Suvarnabhumi flights
Ontario to Phuket City flights
San Francisco to Chiang Mai flights
San Francisco to Ko Samui flights
Long Beach to Suvarnabhumi flights
Fresno to Suvarnabhumi flights
Las Vegas to Phuket City flights
Los Angeles to Ko Samui flights
San Jose to Phuket City flights
San Diego to Phuket City flights
Santa Ana to Phuket City flights
Medford to Suvarnabhumi flights
Palm Springs to Suvarnabhumi flights
Burbank to Phuket City flights
Ontario to Chiang Mai flights
Los Angeles to Krabi flights
Las Vegas to Ko Samui flights
Ontario to Don Mueang Intl flights
Santa Ana to Chiang Mai flights
Arcata to Suvarnabhumi flights
Santa Rosa to Suvarnabhumi flights
Las Vegas to Chiang Mai flights
San Francisco to Krabi flights
San Jose to Chiang Mai flights
Santa Ana to Krabi flights
Sacramento to Phuket City flights
Oakland to Phuket City flights
San Diego to Chiang Mai flights
Oakland to Chiang Mai flights
San Diego to Don Mueang Intl flights
San Francisco to Udon Thani flights

Top 2 airlines flying from Irvine to Ko Samui

Discover the top 2 airlines that operate flights from Irvine to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$756Average$1,035FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$967Average$1,235FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.