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Ko Samui

$196+ Cheap flights from Hong Kong (HKG) 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Find cheap flights from Hong Kong to Ko Samui with Cheapflights

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Cheapflights Tip: The best prices from Hong Kong Intl to Ko Samui are usually found in September or November, booked 29 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Hong Kong to Ko Samui

Cheapest flights from Hong Kong to Ko Samui
Explore the most affordable flight options available from Hong Kong to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:55 pm
HKG
-
USM
1 stop6h 35m
Multiple Airlines
Sat 5/307:50 am
USM
-
HKG
1 stop11h 25m
Multiple Airlines
Deal found 2/16$343
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:55 pm
HKG
-
USM
1 stop15h 15m
Multiple Airlines
Mon 6/86:00 am
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 2/17$367
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:30 pm
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Sun 6/77:50 am
USM
-
HKG
1 stop11h 25m
Multiple Airlines
Deal found 2/17$383
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:30 pm
HKG
-
USM
1 stop11h 05m
Multiple Airlines
Sun 4/198:40 am
USM
-
HKG
1 stop10h 05m
Multiple Airlines
Deal found 2/17$386
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:45 pm
HKG
-
USM
1 stop12h 00m
Scoot
Mon 4/208:40 am
USM
-
HKG
1 stop10h 05m
Scoot
Deal found 2/17$396
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:30 pm
HKG
-
USM
1 stop11h 00m
Multiple Airlines
Sun 4/198:40 am
USM
-
HKG
1 stop10h 05m
Multiple Airlines
Deal found 2/17$397
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:55 am
HKG
-
USM
1 stop10h 00m
Multiple Airlines
Mon 4/208:40 am
USM
-
HKG
1 stop10h 05m
Multiple Airlines
Deal found 2/17$417
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:55 pm
HKG
-
USM
1 stop15h 55m
Multiple Airlines
Fri 3/208:50 am
USM
-
HKG
1 stop13h 35m
Multiple Airlines
Deal found 2/17$419
This Mytrip deal was found by Cheapflights users on 2/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:55 pm
HKG
-
USM
1 stop15h 55m
Multiple Airlines
Sun 3/228:50 am
USM
-
HKG
1 stop13h 35m
Multiple Airlines
Deal found 2/16$420
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:55 pm
HKG
-
USM
1 stop15h 55m
Multiple Airlines
Mon 3/167:00 pm
USM
-
HKG
1 stop19h 30m
Multiple Airlines
Deal found 2/17$422

Find flight deals from Hong Kong to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) 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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$343
(Kiwi.com)

One-way from

$196
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$707

Good round-trip deal

$500 or less

Good one-way deal

$298 or less
Provider with most accurate pricing for Hong Kong Intl-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hong Kong Intl-Ko Samui flights.
Search Deals
From Hong Kong Intl to Ko Samui
Search Deals
One-way flight from Hong Kong Intl to Ko Samui
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.
Search Deals
Price to beat on a one-way flight from Hong Kong Intl to Ko Samui.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hong Kong 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 February 18, 2026.
Use the filters below to find and compare flights from Hong Kong to Ko Samui that are best for you.

Fly from

Hong Kong

Fly to

Ko Samui

Route

Depart

Return

Price

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 5/15

2:55 pm-8:30 pm

1 stop6h 35m

Ko Samui

Sat 5/30

12:30 pm-11:40 pm

2 stops10h 10m

$364

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 4/15

7:55 am-7:10 pm

1 stop12h 15m

Ko Samui

Sat 4/18

9:15 am-4:00 pm

1 stop5h 45m

$453

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 4/16

7:55 am-6:00 pm

1 stop11h 05m

Ko Samui

Sat 4/18

9:15 am-4:00 pm

1 stop5h 45m

$456

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 6/3

7:25 am-4:35 pm

1 stop10h 10m

Ko Samui

Wed 6/3

7:45 pm-7:45 pm

1 stop23h 00m

$465

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 8/4

7:55 am-1:55 pm

1 stop7h 00m

Ko Samui

Wed 8/12

11:55 am-4:20 pm

Nonstop3h 25m

$469

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 3/14

4:55 pm-7:50 am

1 stop15h 55m

Ko Samui

Sat 3/21

8:15 am-3:40 pm

1 stop6h 25m

$471

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 3/4

4:25 pm-8:00 am

1 stop16h 35m

Ko Samui

Sat 3/7

8:15 am-3:40 pm

1 stop6h 25m

$476

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 6/3

3:25 pm-7:10 am

2 stops16h 45m

Ko Samui

Mon 6/8

9:00 pm-10:05 am

2 stops12h 05m

$499

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 5/20

9:10 pm-11:15 am

1 stop15h 05m

Ko Samui

Fri 5/22

8:45 am-6:05 pm

1 stop8h 20m

$501

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 4/18

7:25 am-7:10 am

1 stop24h 45m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 16 results
1
2
  • Most accurate provider: When it comes to deals on Hong Kong-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hong Kong-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hong Kong-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hong Kong-Ko Samui flights, Cheapflights users trust FlightHub the most. FlightHub 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 Hong Kong-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 Hong Kong to Ko Samui

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

How far ahead should I book a flight from Hong Kong to Ko Samui?

Use this chart to determine the optimal time to book a round-trip flight from Hong Kong to Ko Samui. Price data was last updated on February 13, 2026.

The best time to book flights from Hong Kong to Ko Samui is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Hong Kong to Ko Samui?

Currently, June is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of $286). Flying from Hong Kong to Ko Samui in March is currently the most expensive (average of $505). 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 HKG to USM?

Find hourly flight availability from Hong Kong 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 February 18, 2026.

When flying from Hong Kong to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 February 18, 2026.
Get a feel of what it's like to fly with Bangkok Airways and Cathay Pacific from Hong Kong to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very good
123 reviews

Crew

8.6

Entertainment

6.3

Overall

8.0

Comfort

7.9

Boarding

8.0

Food

7.3

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very good
123 reviews
Bangkok Airways
8.0
Very good
123 reviews

Crew

8.6

Entertainment

6.3

Overall

8.0

Comfort

7.9

Boarding

8.0

Food

7.3

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Cathay Pacific
7.6
Good
1,170 reviews
Bangkok Airways
8.0
Very good
123 reviews

Crew

8.6

Entertainment

6.3

Overall

8.0

Comfort

7.9

Boarding

8.0

Food

7.3

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

Related info for your journey

Find useful and relevant information for your journey from Hong Kong 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 airports do I use to fly from Hong Kong to Ko Samui?

    To fly from Hong Kong to Ko Samui, you need to book a flight from Hong Kong Intl (HKG) to Ko Samui (USM). Nonstop flights to Ko Samui from Hong Kong Intl take 3h 20m on average. When it comes time to book airfare, you have a few options: there are 8 outbound flights from Hong Kong Intl to Ko Samui offered by 2 different airlines.

  • What are the cheapest airlines flying from Hong Kong to Ko Samui round-trip?

    Flying on Bangkok Airways is currently your cheapest option to Ko Samui, with prices starting at $365. Another option worth looking into is Cathay Pacific, starting at $576 round trip. Bangkok Airways is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Hong Kong to Ko Samui?

    Consider Hong Kong Airlines (87%), Qatar Airways (87%) or KLM (87%) when booking your flight. These represent the most reliable airlines when flying from Hong Kong to Ko Samui.

  • What are the cheapest flights from Hong Kong to Ko Samui?

    While on average a flight from Hong Kong to Ko Samui is generally $435, our data shows the cheapest flight currently is $296. When looking at the most popular route, (Hong Kong Intl - Ko Samui), you can expect to pay $501 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hong Kong 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 Hong Kong to Ko Samui?

    Currently, June is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of $286). Flying from Hong Kong to Ko Samui in March is currently the most expensive (average of $505). 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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Alternative routes for Hong Kong to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Hong Kong to Suvarnabhumi flights
Hong Kong to Phuket City flights
Hong Kong to Chiang Mai flights
Hong Kong to Don Mueang Intl flights
Hong Kong to Krabi flights

Top 2 airlines flying from Hong Kong to Ko Samui

Discover the top 2 airlines that operate flights from Hong Kong 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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$365Average$520FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$576Average$644FlexibilityNo cancel feeOn-time72%

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