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Cheap flights from Hong Kong to Ko Samui from HK$1,347

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 4-3. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
1 Jan — 8 Jan1
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 47 days in advance, depart on a Friday or Monday and return on a Monday

Find 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 2 December 2025.

Sat 13-1215:05HKG - USM
2 stops28h 45mMultiple Airlines
Tue 16-1208:15USM - HKG
1 stop6h 15mMultiple Airlines
Deal found 30-11HK$3,707
Mon 8-1210:10HKG - USM
2 stops22h 20mEVA Air
Thu 11-1219:00USM - HKG
2 stops18h 20mEVA Air
Deal found 30-11HK$3,730
Mon 8-1217:05HKG - USM
Nonstop3h 30mBangkok Airways
Thu 11-1211:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 30-11HK$3,769
Tue 2-1207:25HKG - USM
1 stop11h 05mMultiple Airlines
Sat 6-1208:15USM - HKG
1 stop6h 25mMultiple Airlines
Deal found 1-12HK$3,785
Fri 5-1207:25HKG - USM
1 stop12h 00mMultiple Airlines
Sat 6-1208:15USM - HKG
1 stop10h 55mMultiple Airlines
Deal found 30-11HK$3,886
Tue 2-1210:10HKG - USM
2 stops23h 30mEVA Air
Sat 6-1207:15USM - HKG
2 stops24h 45mEVA Air
Deal found 1-12HK$3,910
Tue 2-1217:05HKG - USM
Nonstop3h 30mBangkok Airways
Tue 9-1211:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 29-11HK$3,987
Tue 2-1219:40HKG - USM
2 stops13h 05mEVA Air
Tue 9-1221:10USM - HKG
2 stops21h 55mEVA Air
Deal found 29-11HK$4,011
Wed 17-1217:05HKG - USM
Nonstop3h 30mMultiple Airlines
Thu 1-108:55USM - HKG
1 stop10h 40mMultiple Airlines
Deal found 29-11HK$4,034
Tue 2-1207:25HKG - USM
1 stop14h 25mMultiple Airlines
Tue 9-1211:40USM - HKG
Nonstop3h 15mMultiple Airlines
Deal found 29-11HK$4,042
Fri 5-1217:05HKG - USM
Nonstop3h 30mBangkok Airways
Tue 9-1211:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 1-12HK$4,081
Tue 2-1217:05HKG - USM
Nonstop3h 30mBangkok Airways
Sat 6-1211:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 1-12HK$4,096

Cheap 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 2 December 2025.

Round-trip from

HK$3,691

One-way from

HK$1,347

Popular in

February

Cheapest in

September

Average price

HK$4,906

Good round-trip deal

HK$3,823 or less
Bangkok Airways
  • Bangkok Airways
  • 18-1-31-1
  • 1 total stop
  • 19h 50m total
  • Hong Kong to Ko Samui
Search Deals
4-3
  • 4-3
  • 1 total stop
  • 15h 15m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (HK$3,290 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (HK$674 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 2 December 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

Departure

Return

Price

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 15-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Thu 22-1

11:40-15:55

Nonstop3h 15m

HK$3,738

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 15-1

14:20-20:30

1 stop7h 10m

Ko Samui

Thu 22-1

08:55-04:35

2 stops18h 40m

HK$3,769

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 11-5

16:15-18:35

Nonstop3h 20m

Ko Samui

Thu 14-5

10:55-15:15

Nonstop3h 20m

HK$3,933

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 17-5

16:15-18:35

Nonstop3h 20m

Ko Samui

Wed 20-5

10:55-15:15

Nonstop3h 20m

HK$3,933

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 17-5

21:30-11:40

1 stop15h 10m

Ko Samui

Wed 20-5

08:45-18:05

1 stop8h 20m

HK$3,948

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 17-5

21:30-11:40

1 stop15h 10m

Ko Samui

Thu 21-5

08:45-18:05

1 stop8h 20m

HK$3,948

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 18-5

21:30-11:40

1 stop15h 10m

Ko Samui

Thu 21-5

08:45-18:05

1 stop8h 20m

HK$3,948

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 11-5

21:30-11:40

1 stop15h 10m

Ko Samui

Thu 14-5

08:45-18:05

1 stop8h 20m

HK$3,948

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 9-1

22:10-11:35

1 stop14h 25m

Ko Samui

Thu 15-1

11:40-15:55

Nonstop3h 15m

HK$4,019

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 14-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 25-3

11:40-15:55

Nonstop3h 15m

HK$4,112

Flights are sorted by cheapest return flights first.

Deals found on 29-11

Showing 1-10 of 22 results
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2
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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
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 28 November 2025.

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 47 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$1,892). Flying from Hong Kong to Ko Samui in February is currently the most expensive (average of HK$3,910). 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 2 December 2025.

A simple way to save on the total cost of your ticket is to fly from Hong Kong to Ko Samui in the afternoon. If you’re flexible enough to do this you can expect to save up to 65% on your trip compared to booking a flight in the evening.

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 2 December 2025.

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 14% of weekly flights between Hong Kong and Ko Samui have experienced delays in the past year, with the average delay time being 112 minutes.

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

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon 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 Sunday 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, Cathay Pacific have had the lowest number of delays on this route, with just 12% 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 2 December 2025.
Read reviews from past customers who have flown with Bangkok Airways and Cathay 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
8.0
Very Good
118 reviews
Check prices

Food

7.3

Entertainment

6.3

Crew

8.5

Overall

8.0

Boarding

8.0

Comfort

7.9

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
Check prices

Food

7.3

Entertainment

6.3

Crew

8.5

Overall

8.0

Boarding

8.0

Comfort

7.9

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
1,080 reviews
Bangkok Airways
8.0
Very Good
118 reviews
Check prices

Food

7.3

Entertainment

6.3

Crew

8.5

Overall

8.0

Boarding

8.0

Comfort

7.9

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 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 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$2,611, 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. Check Cheapflights for deals on Cathay Pacific for as low as HK$4,590. 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: Etihad Airways (95%), Finnair (95%), Hong Kong Airlines( 80%).

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

    The cheapest flight price from Hong Kong to Ko Samui is HK$2,375. On average you can expect to pay HK$5,637. The most popular route, (Hong Kong Intl - Ko Samui), can usually be booked for HK$2,765.

  • 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$1,892). Flying from Hong Kong to Ko Samui in February is currently the most expensive (average of HK$3,910). 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 Ko Samui flights
Hong Kong to Chiang Mai 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 70,647 searches. Data last updated 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapestHK$2,611AverageHK$4,051FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Cathay PacificCheapestHK$4,590AverageHK$5,855FlexibilityNo 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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