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Ko Samui

$628+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — USM
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Hawaii to Ko Samui

Cheapest flights from Hawaii to Ko Samui
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 December 18, 2025.

This Trip.com deal was found by Cheapflights users on 12/16. 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.
Thu 12/2510:18 amKOA - USM
3 stops40h 17mMultiple Airlines
Wed 12/3111:40 amUSM - KOA
3 stops42h 40mMultiple Airlines
Deal found 12/16$3,816

Find 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 December 18, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars
Provider with most accurate pricing for Honolulu-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Honolulu-Ko Samui flights.
Search Deals

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 December 18, 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

Wed 2/4

11:30 am-8:25 am

3 stops51h 55m

$628

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

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 December 18, 2025.

One of the essential ways to save on airfare from Hawaii to Ko Samui is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 70% on airfare.

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.

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

    Ko Samui (USM) is the airport you will fly into if you book a flight from Hawaii to Ko Samui. 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 Hawaii to Ko Samui that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Hawaii 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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