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Cheap flights from Hong Kong to Ko Samui from HK$1,475

HKG — USM
28 Oct — 4 Nov1
1 adult
1 adult, Economy, 0 bags

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

Mon 19-1021:30 -
1 stop10h 40m
Fri 23-1008:40 -
1 stop10h 05m
Deal found 24-9HK$2,792
Tue 10-1107:50 -
1 stop6h 40m
Wed 11-1118:05 -
1 stop20h 35m
Deal found 28-9HK$2,839
Tue 6-1021:30 -
1 stop10h 40m
Thu 15-1018:15 -
1 stop24h 30m
Deal found 27-9HK$2,879
Sun 8-1121:40 -
1 stop10h 30m
Sun 15-1112:00 -
1 stop26h 40m
Deal found 23-9HK$2,902
Mon 9-1121:40 -
1 stop11h 30m
Mon 16-1107:00 -
1 stop6h 35m
Deal found 25-9HK$2,973
Wed 11-1116:55 -
1 stop15h 15m
Wed 18-1121:10 -
1 stop6h 20m
Deal found 27-9HK$2,981
Tue 10-1121:40 -
1 stop10h 30m
Tue 17-1121:10 -
1 stop6h 20m
Deal found 26-9HK$2,988
Tue 20-1016:55 -
1 stop15h 15m
Mon 26-1019:50 -
1 stop18h 50m
Deal found 23-9HK$3,004
Mon 19-1007:25 -
1 stop15h 10m
Thu 29-1019:50 -
1 stop18h 50m
Deal found 27-9HK$3,020
Mon 26-1021:40 -
1 stop10h 30m
Wed 28-1018:05 -
1 stop20h 35m
Deal found 26-9HK$3,028
Fri 9-1016:55 -
1 stop15h 15m
Sun 18-1006:00 -
1 stop7h 20m
Deal found 26-9HK$3,035
Sun 18-1013:30 -
1 stop20h 05m
Fri 23-1008:40 -
1 stop10h 05m
Deal found 24-9HK$3,051

Find flight deals from Hong Kong to Ko Samui

Round-trip from

HK$2,792

One-way from

HK$1,475

Popular in

December

Cheapest in

November

Average price

HK$4,777
Scoot
  • Scoot
  • 19-10-23-10
  • 2 total stops
  • 20h 45m total
  • Hong Kong to Ko Samui
Search Deals
8-11-31-12
  • 8-11-31-12
  • 1 total stop
  • 12h 00m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (HK$32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (HK$752 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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 Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Tue 3-11

07:25-18:25

1 stop12h 00m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,553

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Sat 31-10

21:40-10:25

1 stop13h 45m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,561
Fastest return journey

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Fri 6-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,439

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Mon 21-12

21:40-06:55

1 stop10h 15m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,463

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Thu 29-10

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,675

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Wed 24-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,753

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Sat 13-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,753

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Wed 11-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,753

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Tue 23-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,753

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Tue 9-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,847

Flights are sorted by cheapest return flights first.

Deals found on 23-9

Showing 1-10 of 21 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Ko Samui

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

Currently, November is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of HK$3,836). Flying from Hong Kong to Ko Samui in December is currently the most expensive (average of HK$5,891). 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?

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

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 12% of weekly flights between Hong Kong and Ko Samui have experienced delays in the past year, with the average delay time being 138 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?

Wednesday tends to have the lowest number of delays on this route, whereas Thursday 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 12% of flights being delayed.

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

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 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Ko Samui

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
133 reviews
Check prices

Entertainment

6.3

Overall

8.1

Boarding

8.1

Crew

8.6

Comfort

7.9

Food

7.3

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
133 reviews
Bangkok Airways
8.1
Very Good
133 reviews
Check prices

Entertainment

6.3

Overall

8.1

Boarding

8.1

Crew

8.6

Comfort

7.9

Food

7.3

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
7.9
Good
425 reviews
Bangkok Airways
8.1
Very Good
133 reviews
Check prices

Entertainment

6.3

Overall

8.1

Boarding

8.1

Crew

8.6

Comfort

7.9

Food

7.3

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
1,503 reviews
Bangkok Airways
8.1
Very Good
133 reviews
Check prices

Entertainment

6.3

Overall

8.1

Boarding

8.1

Crew

8.6

Comfort

7.9

Food

7.3

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

  • 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 25 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 30m. 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$3,609, 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$3,812 and HK$4,640, respectively. Bangkok Airways is priced at 25% 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: Qatar Airways (75%), Hong Kong Airlines (73%), KLM( 73%).

  • 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, November is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of HK$3,836). Flying from Hong Kong to Ko Samui in December is currently the most expensive (average of HK$5,891). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Hong Kong to Ko Samui

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

AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapestHK$3,609AverageHK$4,932FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
泰國航空CheapestHK$3,812AverageHK$4,278FlexibilityNo cancel feeOn-time77%
Search 泰國航空 flights
Cathay PacificCheapestHK$4,640AverageHK$6,231FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

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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