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Ko Samui

$515+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
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 August 2, 2025.

Round-trip from

$718
(FlightHub)

One-way from

$433
(FlightHub)

Popular in

June

Cheapest in

April

Average price

$1,181
From Irvine to Ko Samui
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One-way flight from Irvine to Ko Samui
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($154 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 2, 2025.

This FlightHub deal was found by Cheapflights users on 7/31. 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.
Tue 9/911:55 pmLAX - USM
1 stop28h 35mSingapore Airlines
Wed 9/248:45 amUSM - LAX
1 stop27h 05mSingapore Airlines
Deal found 7/31$718
This Gurufare deal was found by Cheapflights users on 7/31. 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.
Tue 9/93:00 pmLAX - USM
2 stops26h 20mMultiple Airlines
Wed 9/247:00 amUSM - LAX
2 stops43h 35mMultiple Airlines
Deal found 7/31$804
This FlightHub deal was found by Cheapflights users on 8/1. 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.
Tue 11/1810:40 amLAX - USM
2 stops29h 30mEVA Air
Thu 11/201:45 pmUSM - LAX
2 stops20h 50mEVA Air
Deal found 8/1$1,042

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 August 2, 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 9/9

11:55 pm-6:30 pm

1 stop28h 35m

Ko Samui

Wed 9/24

8:45 am-9:50 pm

1 stop27h 05m

$718

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 9/9

3:00 pm-7:20 am

2 stops26h 20m

Ko Samui

Wed 9/24

7:00 am-12:35 pm

2 stops43h 35m

$804

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Tue 9/30

12:10 pm-7:35 am

2 stops29h 25m

Ko Samui

Thu 10/16

2:00 pm-8:55 pm

2 stops20h 55m

$1,062

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 8/15

4:55 pm-7:50 am

2 stops24h 55m

$515

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 8/15

11:55 pm-11:10 am

1 stop21h 15m

$710

Los AngelesKo Samui

LAX - USM

LAXUSM

Los Angeles

Fri 8/15

12:25 am-6:35 pm

1 stop28h 10m

$915

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 August 2, 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.

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 August 2, 2025.
Read through reviews of airlines operating flights from Irvine to Ko Samui, such as EVA Air, Singapore Airlines, and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very good
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Singapore Airlines
8.1
Very good
1,338 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Cathay Pacific
7.6
Good
951 reviews
EVA Air
8.4
Very good
1,220 reviews

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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.

  • What are the cheapest airlines to fly from Irvine to Ko Samui one-way?

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $433. Users have also found prices from $786 and $1,102 on Cathay Pacific and EVA Air, respectively.

  • 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

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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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$756Average$1,222FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,071Average$1,170FlexibilityNo cancel feeOn-time74%

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