HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ko Samui

$189+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Hong Kong Intl to Ko Samui are usually found in November or May, booked 47 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 junio 12, 2025.

Round-trip from

$356
(Mytrip)

One-way from

$189
(Mytrip)

Popular in

April

Cheapest in

November

Average price

$533

Good round-trip deal

$393 or less
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. 1% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.
Search Deals

Find 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 junio 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
mié. 6/188:10 pmHKG - USM
1 stop22h 50mMultiple Airlines
mié. 6/257:25 pmUSM - HKG
1 stop21h 55mMultiple Airlines
Deal found 6/12$345
This Emirates deal was found by Cheapflights users on 6/11. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/199:30 pmHKG - USM
1 stop13h 40mEmirates
jue. 10/28:45 amUSM - HKG
1 stop8h 20mEmirates
Deal found 6/11$385
This Singapore Airlines deal was found by Cheapflights users on 6/10. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/412:25 pmHKG - USM
1 stop7h 05mSingapore Airlines
sáb. 10/118:45 amUSM - HKG
1 stop13h 15mSingapore Airlines
Deal found 6/10$439
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
mié. 6/184:15 pmHKG - USM
Nonstop3h 20mBangkok Airways
mié. 6/2510:55 amUSM - HKG
Nonstop3h 20mBangkok Airways
Deal found 6/12$486
This Booking.com deal was found by Cheapflights users on 6/12. 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.
mié. 6/185:10 pmHKG - USM
2 stops16h 05mEVA Air
mié. 6/258:00 amUSM - HKG
2 stops10h 55mEVA Air
Deal found 6/12$526
This Cathay Pacific deal was found by Cheapflights users on 6/11. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/194:15 pmHKG - USM
Nonstop3h 20mCathay Pacific
lun. 9/2910:55 amUSM - HKG
Nonstop3h 20mCathay Pacific
Deal found 6/11$593
This SmartFares deal was found by Cheapflights users on 6/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/84:15 pmHKG - USM
Nonstop3h 20mHong Kong Airlines
sáb. 7/1210:55 amUSM - HKG
Nonstop3h 20mHong Kong Airlines
Deal found 6/10$594
This Philippine Airlines deal was found by Cheapflights users on 6/10. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/231:40 pmHKG - USM
2 stops20h 20mPhilippine Airlines
lun. 6/305:25 pmUSM - HKG
2 stops22h 55mPhilippine Airlines
Deal found 6/10$738
This Vietnam Airlines deal was found by Cheapflights users on 6/10. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/256:45 pmHKG - USM
2 stops27h 30mVietnam Airlines
vie. 8/11:30 pmUSM - HKG
2 stops26h 55mVietnam Airlines
Deal found 6/10$899

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 junio 12, 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

mar. 7/8

8:10 pm-6:00 pm

1 stop22h 50m

Ko Samui

sáb. 7/12

7:25 pm-6:20 pm

1 stop21h 55m

$356

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

vie. 9/19

9:30 pm-10:10 am

1 stop13h 40m

Ko Samui

jue. 10/2

8:45 am-6:05 pm

1 stop8h 20m

$385

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

sáb. 10/4

12:25 pm-6:30 pm

1 stop7h 05m

Ko Samui

sáb. 10/11

8:45 am-11:00 pm

1 stop13h 15m

$439

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

mar. 9/23

4:15 pm-6:35 pm

Nonstop3h 20m

Ko Samui

mar. 9/30

10:55 am-3:15 pm

Nonstop3h 20m

$491

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

vie. 9/19

4:15 pm-6:35 pm

Nonstop3h 20m

Ko Samui

lun. 9/29

10:55 am-3:15 pm

Nonstop3h 20m

$593

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

mar. 7/8

4:15 pm-6:35 pm

Nonstop3h 20m

Ko Samui

sáb. 7/12

10:55 am-3:15 pm

Nonstop3h 20m

$594

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

vie. 7/25

11:05 am-7:35 am

2 stops21h 30m

Ko Samui

vie. 8/1

6:25 pm-10:05 am

2 stops14h 40m

$644

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

lun. 6/23

1:40 pm-9:00 am

2 stops20h 20m

Ko Samui

lun. 6/30

5:25 pm-5:20 pm

2 stops22h 55m

$738

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

vie. 7/25

6:45 pm-9:15 pm

2 stops27h 30m

Ko Samui

vie. 8/1

1:30 pm-5:25 pm

2 stops26h 55m

$899

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

dom. 6/22

7:55 am-6:00 pm

1 stop11h 05m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
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 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 June 9, 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 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 junio 12, 2025.

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

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 junio 12, 2025.

The most flights from HKG to USM are scheduled on a Wednesday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

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 junio 12, 2025.
Read reviews from past customers who have flown EVA Air, Emirates and Singapore Airlines from Hong Kong to Ko Samui. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Emirates
8.1
Very good
3,264 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Singapore Airlines
8.1
Very good
1,302 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Bangkok Airways
8.0
Very good
111 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Cathay Pacific
7.6
Good
892 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Overall

8.4

Boarding

8.4

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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 6 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 Emirates is currently your cheapest option to Ko Samui, with prices starting at $385. Additional round-trip tickets that might be worth considering are offered by Singapore Airlines and Bangkok Airways, with the lowest prices starting at $439 and $491, respectively. Emirates is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Hong Kong to Ko Samui one-way?

    The cheapest airlines for a one-way flight from Hong Kong to Ko Samui are Bangkok Airways ($267), Cathay Pacific ($559), and Malaysia Airlines ($937).

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

    Consider Hong Kong Airlines (71%), Qatar Airways (71%) or KLM (71%) 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 $459, our data shows the cheapest flight currently is $365. When looking at the most popular route, (Hong Kong Intl - Ko Samui), you can expect to pay $293 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.

See more FAQs

Traveling to a place near Hong Kong?

Book flights to Hong Kong 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$393Average$564FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$543Average$757FlexibilityNo cancel feeOn-time72%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.