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Ko Samui

$213+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Hong Kong 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Hong Kong Intl to Ko Samui are usually found in September or November, booked 47 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 December 18, 2025.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:25 pmHKG - USM
1 stop12h 25mMultiple Airlines
Sun 1/49:30 pmUSM - HKG
1 stop8h 35mMultiple Airlines
Deal found 12/16$549
This oojo deal was found by Cheapflights users on 12/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:30 pmHKG - USM
1 stop18h 00mBangkok Airways
Sun 12/289:30 pmUSM - HKG
1 stop13h 15mBangkok Airways
Deal found 12/15$630
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:05 pmHKG - USM
Nonstop3h 30mBangkok Airways
Sun 1/49:30 pmUSM - HKG
1 stop13h 15mBangkok Airways
Deal found 12/16$636
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:15 pmHKG - USM
2 stops29h 55mMultiple Airlines
Sun 12/289:30 pmUSM - HKG
1 stop8h 30mMultiple Airlines
Deal found 12/17$648
This Booking.com deal was found by Cheapflights users on 12/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:25 pmHKG - USM
1 stop27h 25mScoot
Sun 12/287:45 pmUSM - HKG
1 stop19h 20mScoot
Deal found 12/17$650
This oojo deal was found by Cheapflights users on 12/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:30 pmHKG - USM
1 stop18h 20mBangkok Airways
Wed 12/317:55 amUSM - HKG
1 stop7h 45mBangkok Airways
Deal found 12/15$663

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$525
(Emirates)

One-way from

$213
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$586

Good round-trip deal

$456 or less

Good one-way deal

$270 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. 8% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

Sun 5/17

9:10 pm-9:20 am

1 stop13h 10m

Ko Samui

Thu 5/21

5:50 pm-6:05 pm

1 stop23h 15m

$525

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 3/14

10:10 am-11:50 am

2 stops26h 40m

Ko Samui

Sat 3/21

9:00 am-9:00 am

2 stops23h 00m

$535

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 5/20

9:10 pm-1:45 pm

2 stops17h 35m

Ko Samui

Mon 5/25

7:10 pm-10:05 am

2 stops13h 55m

$535

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 3/14

4:05 pm-7:10 am

1 stop16h 05m

Ko Samui

Sat 3/21

7:15 am-3:30 pm

1 stop7h 15m

$536

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 3/14

9:00 pm-8:10 am

1 stop12h 10m

Ko Samui

Sat 3/21

10:00 am-5:40 pm

1 stop6h 40m

$550

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 3/12

5:05 pm-7:35 pm

Nonstop3h 30m

Ko Samui

Mon 3/16

8:30 am-3:30 pm

1 stop6h 00m

$553

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 3/12

10:10 am-8:05 am

2 stops22h 55m

Ko Samui

Mon 3/16

9:00 am-9:00 am

2 stops23h 00m

$558

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 12/31

11:00 pm-7:50 am

1 stop9h 50m

$213

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 1/27

2:20 pm-7:45 am

1 stop18h 25m

$214

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 1/17

12:15 pm-6:50 pm

2 stops31h 35m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 16 results
1
2

Compare providers for flights from Hong Kong to Ko Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hong Kong to Ko Samui in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Hong Kong-Ko Samui flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Hong Kong-Ko Samui flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 12, 2025.

The best time to book flights from Hong Kong to Ko Samui is 47 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 $243). Flying from Hong Kong to Ko Samui in February is currently the most expensive (average of $527). 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 December 18, 2025.

It’s typically best to fly out from Hong Kong to Ko Samui in the afternoon. Doing so could potentially save you 68% on the flight price compared to flying in the evening, which is usually more expensive.

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 December 18, 2025.
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
118 reviews

Entertainment

6.3

Food

7.3

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

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
118 reviews
Bangkok Airways
8.0
Very good
118 reviews

Entertainment

6.3

Food

7.3

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

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
1,095 reviews
Bangkok Airways
8.0
Very good
118 reviews

Entertainment

6.3

Food

7.3

Boarding

8.0

Comfort

7.9

Crew

8.5

Overall

8.0

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 30m 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.

  • How long is the flight from Hong Kong to Ko Samui?

    Emirates, EVA Air, and Bangkok Airways can get you from Hong Kong to Ko Samui in just under 13h 10m. Your travel time can differ by up to 13h 30m. Hong Kong and Ko Samui are separated by a distance of 1272 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $286. Another option worth looking into is Cathay Pacific, starting at $576 round trip. Bangkok Airways is priced at 48% 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 Etihad Airways (88%), Finnair (88%) or Hong Kong Airlines (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 $411, our data shows the cheapest flight currently is $269. When looking at the most popular route, (Hong Kong Intl - Ko Samui), you can expect to pay $616 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 $243). Flying from Hong Kong to Ko Samui in February is currently the most expensive (average of $527). 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

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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.
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Hong Kong to Phuket City flights
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$365Average$514FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$576Average$639FlexibilityNo cancel feeOn-time72%

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