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Ko Samui

$396+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This oojo deal was found by Cheapflights users on 10/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:50 pmLAX - USM
2 stops30h 25mMultiple Airlines
Tue 11/252:30 pmUSM - LAX
2 stops19h 30mMultiple Airlines
Deal found 10/28$857
This oojo deal was found by Cheapflights users on 10/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:40 pmLAX - USM
2 stops22h 55mMultiple Airlines
Mon 12/157:55 amUSM - LAX
2 stops26h 30mMultiple Airlines
Deal found 10/28$944
This Ovago deal was found by Cheapflights users on 10/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:25 pmLAX - USM
2 stops28h 35mSingapore Airlines
Tue 11/257:45 pmUSM - LAX
1 stop39h 10mSingapore Airlines
Deal found 10/28$1,070
This Ovago deal was found by Cheapflights users on 10/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:35 pmLAX - USM
1 stop30h 00mCathay Pacific
Tue 11/2511:40 amUSM - LAX
1 stop24h 15mCathay Pacific
Deal found 10/30$1,179
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/291:10 pmLAX - USM
2 stops27h 55mMultiple Airlines
Sat 12/612:30 pmUSM - LAX
3 stops36h 35mMultiple Airlines
Deal found 10/30$1,182
This Ovago deal was found by Cheapflights users on 10/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:05 pmLAX - USM
1 stop42h 55mSingapore Airlines
Mon 12/157:45 pmUSM - LAX
1 stop39h 10mSingapore Airlines
Deal found 10/29$1,268
This Gurufare deal was found by Cheapflights users on 10/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:40 amLAX - USM
2 stops29h 30mEVA Air
Sat 11/2910:00 amUSM - LAX
2 stops20h 20mEVA Air
Deal found 10/28$1,337
This KAYAK deal was found by Cheapflights users on 10/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:40 amLAX - USM
2 stops31h 40mEVA Air
Sat 11/295:40 pmUSM - LAX
2 stops28h 20mEVA Air
Deal found 10/28$1,373

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$730
(FlightHub)

One-way from

$396
(Booking.com)

Popular in

February

Cheapest in

September

Average price

$1,105
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. 8% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 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

Tue 11/18

10:20 pm-8:15 pm

2 stops30h 55m

Ko Samui

Tue 11/25

10:00 am-3:00 pm

2 stops20h 00m

$859

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sat 1/10

10:50 pm-7:45 pm

2 stops29h 55m

Ko Samui

Wed 1/14

2:30 pm-7:00 pm

2 stops19h 30m

$907

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 12/5

10:40 pm-12:35 pm

2 stops22h 55m

Ko Samui

Mon 12/15

7:55 am-7:25 pm

2 stops26h 30m

$944

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sat 11/29

10:40 pm-8:45 pm

2 stops31h 05m

Ko Samui

Sat 12/6

7:15 am-7:25 pm

2 stops27h 10m

$1,053

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Sat 1/10

12:25 pm-5:10 pm

2 stops37h 45m

Ko Samui

Wed 1/14

8:55 am-6:10 pm

1 stop24h 15m

$1,058

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Wed 1/7

11:00 pm-8:25 pm

2 stops30h 25m

Ko Samui

Thu 1/22

1:45 pm-7:25 pm

2 stops20h 40m

$1,063

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 11/18

12:25 pm-8:00 am

2 stops28h 35m

Ko Samui

Tue 11/25

7:45 pm-7:55 pm

1 stop39h 10m

$1,070

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 1/2

10:40 am-7:45 am

2 stops30h 05m

Ko Samui

Thu 1/22

1:45 pm-7:25 pm

2 stops20h 40m

$1,103

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 11/18

10:35 pm-7:35 pm

1 stop30h 00m

Ko Samui

Tue 11/25

11:40 am-8:55 pm

1 stop24h 15m

$1,179

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Mon 12/1

1:10 pm-8:10 am

2 stops28h 00m

$396

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 17 results
1
2

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 June is currently the most expensive (average of $1,386). 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 October 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 44% 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 October 30, 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
1,267 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
EVA Air
8.4
Very good
1,267 reviews
EVA Air
8.4
Very good
1,267 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Singapore Airlines
8.1
Very good
1,388 reviews
EVA Air
8.4
Very good
1,267 reviews

Food

8.1

Crew

8.6

Comfort

8.3

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.

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.

  • 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 June is currently the most expensive (average of $1,386). 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

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$756Average$1,114FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,062Average$1,235FlexibilityNo cancel feeOn-time74%

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