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Ko Samui

$691+ Cheap flights from Irvine, CA to Ko Samui (USM)

This is the cheapest round-trip 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.
LAX — USM
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap 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 septiembre 16, 2025.

Round-trip from

$691
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$775
From Irvine to Ko Samui
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($156 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 septiembre 16, 2025.

This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3012:10 pmLAX - USM
1 stop41h 25mMultiple Airlines
jue. 11/611:40 amUSM - LAX
1 stop22h 45mMultiple Airlines
Deal found 9/15$745
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2911:05 pmLAX - USM
1 stop28h 05mSingapore Airlines
mié. 11/58:55 amUSM - LAX
1 stop26h 00mSingapore Airlines
Deal found 9/14$794
This Justfly.com deal was found by Cheapflights users on 9/14. 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.
mié. 10/111:40 pmLAX - USM
1 stop21h 30mSingapore Airlines
mié. 10/812:05 pmUSM - LAX
1 stop23h 45mSingapore Airlines
Deal found 9/14$856
This Justfly.com deal was found by Cheapflights users on 9/15. 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.
jue. 11/1312:25 pmLAX - USM
2 stops31h 35mSingapore Airlines
mié. 12/312:00 pmUSM - LAX
1 stop21h 10mSingapore Airlines
Deal found 9/15$869
This Justfly.com deal was found by Cheapflights users on 9/14. 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.
mié. 10/88:40 pmLAX - USM
1 stop24h 30mSingapore Airlines
mié. 10/158:45 amUSM - LAX
1 stop27h 05mSingapore Airlines
Deal found 9/14$899
This Justfly.com deal was found by Cheapflights users on 9/14. 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.
vie. 12/57:50 pmLAX - USM
1 stop24h 10mSingapore Airlines
lun. 12/158:55 amUSM - LAX
1 stop26h 00mSingapore Airlines
Deal found 9/14$939
This FlightHub deal was found by Cheapflights users on 9/14. 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.
dom. 11/2310:05 pmLAX - USM
1 stop28h 05mSingapore Airlines
mar. 12/26:05 pmUSM - LAX
1 stop39h 05mSingapore Airlines
Deal found 9/14$942

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 septiembre 16, 2025.
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

jue. 1/22

10:05 pm-5:10 pm

1 stop28h 05m

Ko Samui

jue. 1/29

8:55 am-7:55 pm

1 stop26h 00m

$691

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

vie. 2/6

7:50 pm-8:00 am

1 stop21h 10m

Ko Samui

mar. 2/10

7:45 pm-10:55 am

2 stops30h 10m

$766

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

jue. 10/30

11:55 pm-7:35 pm

1 stop29h 40m

Ko Samui

jue. 11/6

4:25 pm-12:30 am

2 stops23h 05m

$786

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

sáb. 2/28

10:05 pm-5:10 pm

1 stop28h 05m

Ko Samui

sáb. 3/14

8:55 am-8:55 pm

1 stop26h 00m

$788

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

sáb. 2/28

10:05 pm-5:10 pm

1 stop28h 05m

Ko Samui

sáb. 3/7

6:05 pm-10:55 am

2 stops31h 50m

$814

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

mar. 3/3

12:25 pm-8:00 am

2 stops28h 35m

Ko Samui

mar. 3/31

7:25 pm-12:50 pm

2 stops31h 25m

$823

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

vie. 2/6

7:50 pm-8:00 am

1 stop21h 10m

Ko Samui

sáb. 2/14

8:55 am-7:55 pm

1 stop26h 00m

$843

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

vie. 12/19

9:10 am-7:10 am

2 stops55h 00m

$1,236

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

jue. 12/18

10:40 am-7:10 am

2 stops29h 30m

$1,300

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

jue. 12/18

11:20 pm-7:35 pm

1 stop29h 15m

$3,574

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 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 septiembre 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Ko Samui as you normally would.

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. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Irvine to Ko Samui?

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 septiembre 16, 2025.
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
1,236 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very good
1,236 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Singapore Airlines
8.1
Very good
1,365 reviews
EVA Air
8.4
Very good
1,236 reviews

Food

8.1

Comfort

8.3

Entertainment

8.0

Overall

8.4

Boarding

8.4

Crew

8.6

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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 28h 05m. 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.

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

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Alternative routes for Irvine to Ko Samui

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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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$756Average$1,159FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,074Average$1,182FlexibilityNo cancel feeOn-time74%

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