$512+ Cheap flights from Hawaii 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — USM
Oct 16 — Oct 231
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Hawaii 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 Hawaii to Ko Samui
Keep the following information in mind while searching for Hawaii to Ko Samui flight deals. Data was last updated September 16, 2025.
Round-trip from | $1,143 (FlightHub) |
|---|---|
One-way from | $512 (Trip.com) |
Find flight deals from Hawaii to Ko Samui
Cheapest flights from Hawaii to Ko SamuiExplore the most affordable flight options available from Hawaii to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.
Explore the most affordable flight options available from Hawaii to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.
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.
Sat 9/2012:20 pmHNL - USM
2 stops29h 10mMultiple Airlines
Sat 9/277:00 pmUSM - HNL
2 stops32h 40mMultiple Airlines
Deal found 9/14![Multiple Airlines logo]()
$1,143
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1611:35 amHNL - USM
2 stops38h 00mCathay Pacific
Mon 10/2010:55 amUSM - HNL
2 stops40h 00mCathay Pacific
Deal found 9/14![Cathay Pacific logo]()
$1,479
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.
Sat 9/201:35 pmHNL - USM
3 stops60h 00mCathay Pacific
Sat 9/2710:55 amUSM - HNL
2 stops41h 05mCathay Pacific
Deal found 9/14![Cathay Pacific logo]()
$1,617
This Trip.com deal was found by Cheapflights users on 9/16. 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.
Tue 10/1412:55 pmHNL - USM
2 stops33h 50mMultiple Airlines
Fri 10/317:55 amUSM - HNL
2 stops43h 30mMultiple Airlines
Deal found 9/16![Multiple Airlines logo]()
$4,200
Cheapflights Fare Finder
Customize your flight search to find flights from Hawaii 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 September 16, 2025.
Use the filters below to find and compare flights from Hawaii to Ko Samui that are best for you.
Fly from
Hawaii
Fly to
Ko Samui
Route
Depart
Return
Price
HonoluluKo Samui
HNL - USM
HNLUSM
Honolulu
Thu 10/16
11:35 am-6:35 pm
2 stops38h 00m
Ko Samui
Mon 10/20
10:55 am-9:55 am
2 stops40h 00m
$1,479
HonoluluKo Samui
HNL - USM
HNLUSM
Honolulu
Tue 10/14
12:55 pm-3:45 pm
2 stops33h 50m
Ko Samui
Fri 10/31
7:55 am-10:25 am
2 stops43h 30m
$4,200
HonoluluKo Samui
HNL - USM
HNLUSM
Honolulu
Sun 10/12
12:55 pm-7:35 am
2 stops25h 40m
$512
Best time to book a flight from Hawaii to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Hawaii 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 Hawaii to Ko Samui
What is the cheapest time of day to fly from HI to USM?
Find hourly flight availability from Hawaii 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 September 16, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hawaii to Ko Samui as you normally would.
Related info for your journey
Find useful and relevant information for your journey from Hawaii to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsKo Tao
Ko Pha Ngan