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Cheap flights from Hong Kong to Ko Samui from HK$1,245

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 25-4. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Hong Kong to Ko Samui are usually found in September or November, booked 17 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Hong Kong to Ko Samui

Enter your travel dates to find the best prices.

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 17 March 2026.

Sat 23-520:20
HKG
-
USM
1 stop11h 50m
Multiple Airlines
Sun 31-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,435
Thu 21-520:20
HKG
-
USM
1 stop11h 50m
Multiple Airlines
Fri 29-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,443
Thu 21-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Sun 31-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,459
Sun 3-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Mon 11-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 16-3HK$2,482
Wed 2-914:20
HKG
-
USM
1 stop6h 25m
Multiple Airlines
Sun 13-906:00
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 13-3HK$2,505
Tue 1-914:20
HKG
-
USM
1 stop6h 25m
Multiple Airlines
Tue 15-906:00
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 13-3HK$2,513
Sun 30-821:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Wed 16-915:50
USM
-
HKG
1 stop6h 50m
Multiple Airlines
Deal found 13-3HK$2,521
Mon 25-514:20
HKG
-
USM
1 stop6h 25m
Multiple Airlines
Sun 31-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,529
Thu 21-520:20
HKG
-
USM
1 stop11h 50m
Multiple Airlines
Sat 30-509:15
USM
-
HKG
1 stop5h 45m
Multiple Airlines
Deal found 15-3HK$2,545
Mon 4-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Mon 11-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 13-3HK$2,560

Find flight deals from Hong Kong to Ko Samui

Keep the following information in mind while searching for Hong Kong to Ko Samui flight deals. Data was last updated 17 March 2026.

Round-trip from

HK$2,435

One-way from

HK$1,245

Popular in

February

Cheapest in

September

Average price

HK$4,486

Good round-trip deal

HK$3,827 or less
23-5-27-5
  • 23-5-27-5
  • 2 total stops
  • 22h 15m total
  • Hong Kong to Ko Samui
Search Deals
25-4
  • 25-4
  • 1 total stop
  • 10h 40m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (HK$3,610 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$1,260 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Hong Kong to Ko Samui.
Search Deals

Cheapflights Fare Finder

 
Customise 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 70,647 searches. Data last updated 17 March 2026.
Use the filters below to find and compare flights from Hong Kong to Ko Samui that are best for you.

Fly from

Fly to

Route

Departure

Return

Price

Cheapest return flight

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 7-6

21:30-17:45

1 stop21h 15m

Ko Samui

Thu 11-6

07:50-18:15

1 stop9h 25m

HK$3,891
Fastest return journey

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 5-5

17:20-19:40

Nonstop3h 20m

Ko Samui

Sat 9-5

11:55-16:20

Nonstop3h 25m

HK$3,946

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

21:10-11:40

1 stop15h 30m

Ko Samui

Wed 20-5

18:25-18:05

1 stop22h 40m

HK$4,001

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 16-4

17:20-19:40

Nonstop3h 20m

Ko Samui

Sun 3-5

06:00-14:20

1 stop7h 20m

HK$4,252

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

08:00-20:50

1 stop13h 50m

Ko Samui

Wed 20-5

11:55-16:20

Nonstop3h 25m

HK$4,252

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 4-5

09:05-17:20

1 stop9h 15m

Ko Samui

Wed 6-5

08:40-17:05

1 stop7h 25m

HK$4,392

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

17:20-19:40

Nonstop3h 20m

Ko Samui

Wed 20-5

11:55-16:20

Nonstop3h 25m

HK$4,745

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 7-6

17:20-19:40

Nonstop3h 20m

Ko Samui

Thu 11-6

11:55-16:20

Nonstop3h 25m

HK$5,027
Cheapest one-way

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 15-5

18:40-17:20

2 stops23h 40m

HK$1,636

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 28-4

08:00-17:20

2 stops10h 20m

HK$2,161

Flights are sorted by cheapest return flights first.

Deals found on 13-3

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 return 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 return flight from Hong Kong to Ko Samui. Price data was last updated on 13 March 2026.

The price you pay for your flight from Hong Kong to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 HK$2,239). Flying from Hong Kong to Ko Samui in February is currently the most expensive (average of HK$3,938). 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 HK 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 17 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hong Kong to Ko Samui as you normally would.

Weekly flight availability from Hong Kong to Ko Samui

Explore weekly flight availability from Hong Kong to Ko Samui. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 March 2026.

The most flights from HK0 to USM are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How often are flights from Hong Kong to Ko Samui delayed?

About 13% of weekly flights between Hong Kong and Ko Samui have experienced delays in the past year, with the average delay time being 117 minutes.

What is the most punctual flight time for Hong Kong to Ko Samui flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Hong Kong to Ko Samui flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 13% of flights being delayed.

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 17 March 2026.
Read reviews from past customers who have flown with Bangkok Airways,泰國航空, andCathay Pacific from Hong Kong to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Food

7.3

Boarding

8.1

Entertainment

6.3

Crew

8.6

Comfort

8.0

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Food

7.3

Boarding

8.1

Entertainment

6.3

Crew

8.6

Comfort

8.0

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
泰國航空
7.8
Good
392 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Food

7.3

Boarding

8.1

Entertainment

6.3

Crew

8.6

Comfort

8.0

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Cathay Pacific
7.6
Good
1,214 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Food

7.3

Boarding

8.1

Entertainment

6.3

Crew

8.6

Comfort

8.0

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

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 airport do you fly into for flights to Ko Samui from Hong Kong?

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from Hong Kong. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre.

  • How popular is this Hong Kong to Ko Samui flight route?

    This flight path from Hong Kong to Ko Samui was viewed by 53 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Departing from Hong Kong to Ko Samui will take you 3h 20m. The distance between Hong Kong and Ko Samui is about 2047 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at HK$2,625, Bangkok Airways will fly you from Hong Kong to Ko Samui and back. In addition to Bangkok Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from 泰國航空 and Cathay Pacific - these airlines can fly you to your destination from HK$4,180 and HK$4,615, respectively. Bangkok Airways is priced at 40% 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?

    Before booking your flight to Ko Samui from Hong Kong, have a look at the most reliable airlines to get you to your destination on time: Hong Kong Airlines (89%), Qatar Airways (89%), KLM( 89%).

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

    The cheapest flight price from Hong Kong to Ko Samui is HK$3,603. On average you can expect to pay HK$5,175. The most popular route, (Hong Kong Intl - Ko Samui), can usually be booked for HK$2,505.

  • 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 holiday 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 HK$2,239). Flying from Hong Kong to Ko Samui in February is currently the most expensive (average of HK$3,938). 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

Travelling 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.
Hong Kong to Phuket City flights
Hong Kong to Chiang Mai flights
Hong Kong to Ko Samui flights
Hong Kong to Krabi flights

Top 3 airlines flying from Hong Kong to Ko Samui

Discover the top 3 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 70,647 searches. Data last updated 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapestHK$2,625AverageHK$3,991FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
泰國航空CheapestHK$4,180AverageHK$4,363FlexibilityNo cancel feeOn-time77%
Search 泰國航空 flights
Cathay PacificCheapestHK$4,615AverageHK$5,994FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Hong Kong to Ko Samui?

Cheapflights makes it easy to find Hong Kong to Ko Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Ko Samui?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Hong Kong to Ko Samui for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Hong Kong to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Hong Kong to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on Hong Kong to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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