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Ko Samui

$1,137+ Cheap flights from Honolulu (HNL) 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.
HNL — USM
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Find flight deals from Honolulu to Ko Samui

Cheapest flights from Honolulu to Ko Samui
Explore the most affordable flight options available from Honolulu to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Trip.com deal was found by Cheapflights users on 10/21. 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.
Wed 11/2612:40 pmHNL - USM
2 stops25h 30mMultiple Airlines
Mon 12/17:55 amUSM - HNL
2 stops42h 45mMultiple Airlines
Deal found 10/21$1,203
This FlightHub deal was found by Cheapflights users on 10/21. 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.
Wed 11/2611:25 amHNL - USM
2 stops39h 10mCathay Pacific
Mon 12/111:40 amUSM - HNL
3 stops37h 35mCathay Pacific
Deal found 10/21$1,235
This Cathay Pacific deal was found by Cheapflights users on 10/21. 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 11/1312:40 pmHNL - USM
2 stops37h 55mCathay Pacific
Mon 11/1711:40 amUSM - HNL
2 stops39h 45mCathay Pacific
Deal found 10/21$1,254
This Ovago deal was found by Cheapflights users on 10/22. 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.
Thu 11/2012:40 pmHNL - USM
3 stops61h 55mCathay Pacific
Sun 11/3011:40 amUSM - HNL
3 stops37h 35mCathay Pacific
Deal found 10/22$1,413
This AranGrant deal was found by Cheapflights users on 10/22. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/110:50 pmHNL - USM
3 stops50h 25mSingapore Airlines
Mon 12/154:25 pmUSM - HNL
3 stops45h 38mSingapore Airlines
Deal found 10/22$33,993

Cheap flight deals from Honolulu to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Honolulu (HNL) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,137
(Booking.com)
Provider with most accurate pricing for Honolulu-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Honolulu-Ko Samui flights.
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From Honolulu to Ko Samui
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Honolulu 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 23, 2025.
Use the filters below to find and compare flights from Honolulu to Ko Samui that are best for you.

Fly from

Honolulu

Fly to

Ko Samui

Route

Depart

Return

Price

HonoluluKo Samui

HNL - USM

HNLUSM

Honolulu

Thu 1/22

2:00 pm-12:35 pm

2 stops29h 35m

Ko Samui

Sun 2/8

8:20 pm-12:43 pm

2 stops33h 23m

$1,137

HonoluluKo Samui

HNL - USM

HNLUSM

Honolulu

Wed 11/26

12:40 pm-7:10 am

2 stops25h 30m

Ko Samui

Mon 12/1

7:55 am-9:40 am

2 stops42h 45m

$1,203

HonoluluKo Samui

HNL - USM

HNLUSM

Honolulu

Wed 11/26

11:25 am-7:35 pm

2 stops39h 10m

Ko Samui

Mon 12/1

11:40 am-8:15 am

3 stops37h 35m

$1,235

HonoluluKo Samui

HNL - USM

HNLUSM

Honolulu

Thu 1/22

10:55 am-7:35 pm

2 stops39h 40m

Ko Samui

Sun 2/8

11:40 am-10:15 am

3 stops39h 35m

$1,242

HonoluluKo Samui

HNL - USM

HNLUSM

Honolulu

Thu 11/13

12:40 pm-7:35 pm

2 stops37h 55m

Ko Samui

Mon 11/17

11:40 am-10:25 am

2 stops39h 45m

$1,254

HonoluluKo Samui

HNL - USM

HNLUSM

Honolulu

Thu 11/20

12:40 pm-7:35 pm

3 stops61h 55m

Ko Samui

Sun 11/30

11:40 am-8:15 am

3 stops37h 35m

$1,413

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

  • Most accurate provider: When it comes to deals on Honolulu-Ko Samui flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Honolulu-Ko Samui flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Honolulu-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Honolulu-Ko Samui flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Honolulu-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Honolulu to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Honolulu 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 Honolulu to Ko Samui

What is the cheapest time of day to fly from HNL to USM?

Find hourly flight availability from Honolulu 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 23, 2025.

When flying from Honolulu to Ko Samui, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 64% versus a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Honolulu to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Honolulu to Ko Samui?

    Departing from Honolulu to Ko Samui will take you 39h 10m. There are 6733 mi between Honolulu and Ko Samui.

  • Can I find deals for flights from Honolulu to Ko Samui that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Honolulu 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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