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Cheap flights from Hong Kong to Ko Samui from $179

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to Ko Samui departing on 6/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Hong Kong to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:55 pm - 7:10 am
HKG
-
USM
15h 15m
1 stop
Multiple Airlines Logo
6:00 am - 2:20 pm
USM
-
HKG
7h 20m
1 stop
$362Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Scoot Logo
8:45 pm - 7:45 am
HKG
-
USM
12h 00m
1 stop
Scoot Logo
8:40 am - 7:45 pm
USM
-
HKG
10h 05m
1 stop
$391Scoot
Mon, Apr 13 - Thu, Apr 16
Multiple Airlines Logo
6:40 pm - 6:50 pm
HKG
-
USM
25h 10m
2 stops
Multiple Airlines Logo
6:15 pm - 7:45 pm
USM
-
HKG
24h 30m
1 stop
$400Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
4:55 pm - 7:10 am
HKG
-
USM
15h 15m
1 stop
Multiple Airlines Logo
7:50 am - 11:40 pm
USM
-
HKG
14h 50m
1 stop
$405Multiple Airlines
Fri, Jun 26 - Fri, Jul 3
Multiple Airlines Logo
2:20 pm - 7:45 am
HKG
-
USM
18h 25m
1 stop
Multiple Airlines Logo
6:55 am - 7:15 pm
USM
-
HKG
11h 20m
1 stop
$417Multiple Airlines
Mon, Mar 23 - Wed, Apr 1
Multiple Airlines Logo
5:20 pm - 7:40 pm
HKG
-
USM
3h 20mnonstop
Multiple Airlines Logo
8:40 am - 7:45 pm
USM
-
HKG
10h 05m
1 stop
$418Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
7:55 am - 6:00 pm
HKG
-
USM
11h 05m
1 stop
Multiple Airlines Logo
8:40 am - 7:45 pm
USM
-
HKG
10h 05m
1 stop
$419Multiple Airlines
Sun, Apr 12 - Thu, Apr 16
Multiple Airlines Logo
2:20 pm - 8:30 pm
HKG
-
USM
7h 10m
1 stop
Multiple Airlines Logo
8:15 am - 3:30 pm
USM
-
HKG
6h 15m
1 stop
$429Multiple Airlines
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
2:20 pm - 8:30 pm
HKG
-
USM
7h 10m
1 stop
Multiple Airlines Logo
8:55 am - 7:15 pm
USM
-
HKG
9h 20m
2 stops
$434Multiple Airlines
Mon, Mar 23 - Wed, Apr 1
Scoot Logo
8:45 pm - 7:45 am
HKG
-
USM
12h 00m
1 stop
Scoot Logo
8:40 am - 7:45 pm
USM
-
HKG
10h 05m
1 stop
$435Scoot
Mon, Apr 13 - Fri, Apr 17

EVA Air flights from Hong Kong to Ko Samui

Our best EVA Air deals on Hong Kong to Ko Samui flight tickets
EVA Air
May 20
HKG9:05 pmHong Kong Intl
17h 40m
2 stops
USM1:45 pmKo Samui
May 25
USM9:00 pmKo Samui
12h 05m
2 stops
HKG10:05 amHong Kong Intl
$512
EVA Air
Mar 18
HKG3:30 pmHong Kong Intl
17h 00m
2 stops
USM7:30 amKo Samui
Mar 23
USM7:15 amKo Samui
11h 50m
2 stops
HKG8:05 pmHong Kong Intl
$524
EVA Air
Mar 14
HKG7:40 pmHong Kong Intl
13h 25m
2 stops
USM8:05 amKo Samui
Mar 21
USM8:30 amKo Samui
10h 35m
2 stops
HKG8:05 pmHong Kong Intl
$559

Bangkok Airways flights from Hong Kong to Ko Samui

Our best Bangkok Airways deals on Hong Kong to Ko Samui flight tickets
Bangkok Airways
Mar 23
HKG5:05 pmHong Kong Intl
3h 30m
USM7:35 pmKo Samui
Apr 1
USM11:55 amKo Samui
3h 25m
HKG4:20 pmHong Kong Intl
$489
Bangkok Airways
Apr 12
HKG5:20 pmHong Kong Intl
3h 20m
USM7:40 pmKo Samui
Apr 18
USM11:55 amKo Samui
3h 25m
HKG4:20 pmHong Kong Intl
$503
Bangkok Airways
Apr 12
HKG5:20 pmHong Kong Intl
3h 20m
USM7:40 pmKo Samui
Apr 16
USM11:55 amKo Samui
3h 25m
HKG4:20 pmHong Kong Intl
$504

momondo 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, momondo users made 832,500 searches. Data last updated February 3, 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

Depart

Return

Price

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 4/16

4:55 pm-7:10 am

1 stop15h 15m

Ko Samui

Thu 4/23

6:00 am-2:20 pm

1 stop7h 20m

$362

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 4/13

8:45 pm-7:45 am

1 stop12h 00m

Ko Samui

Thu 4/16

8:40 am-7:45 pm

1 stop10h 05m

$391

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 4/16

6:40 pm-6:50 pm

2 stops25h 10m

Ko Samui

Thu 4/23

6:15 pm-7:45 pm

1 stop24h 30m

$400

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 6/26

4:55 pm-7:10 am

1 stop15h 15m

Ko Samui

Fri 7/3

7:50 am-11:40 pm

1 stop14h 50m

$405

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 3/23

2:20 pm-7:45 am

1 stop18h 25m

Ko Samui

Wed 4/1

6:55 am-7:15 pm

1 stop11h 20m

$417

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 4/16

5:20 pm-7:40 pm

Nonstop3h 20m

Ko Samui

Thu 4/23

8:40 am-7:45 pm

1 stop10h 05m

$418

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 4/12

7:55 am-6:00 pm

1 stop11h 05m

Ko Samui

Thu 4/16

8:40 am-7:45 pm

1 stop10h 05m

$419

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 3/19

2:20 pm-8:30 pm

1 stop7h 10m

Ko Samui

Thu 3/26

8:15 am-3:30 pm

1 stop6h 15m

$429

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 3/23

2:20 pm-8:30 pm

1 stop7h 10m

Ko Samui

Wed 4/1

8:55 am-7:15 pm

2 stops9h 20m

$434

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 4/13

8:45 pm-7:45 am

1 stop12h 00m

Ko Samui

Fri 4/17

8:40 am-7:45 pm

1 stop10h 05m

$435

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ko Samui from

How to get the cheapest flight ticket from Hong Kong to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ko Samui?

In general, September is the cheapest month to fly from Hong Kong to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $454. If you don’t want to visit Ko Samui in September, then you should wait until November to fly from Hong Kong, when ticket prices are also cheap, with an average price of $479.

What is the cheapest day to depart on your flight to Ko Samui?

Our data shows that Wednesday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $473. Flights from Hong Kong to Ko Samui on a Friday will generally be more expensive and average around $664. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our data shows that the cheapest Hong Kong to Ko Samui flights are usually those with departure times in the afternoon. Our users have found flights to Ko Samui in the afternoon for as low as $534. In the evening is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $1,753 per ticket.

What is the cheapest Hong Kong Intl to Ko Samui flight route?

Fly from Hong Kong Intl to Ko Samui for the best Hong Kong Intl - Ko Samui flight prices

How far in advance should I book a flight to Ko Samui?

You are more likely to see cheaper flights to Ko Samui from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $560 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Hong Kong for as low as $455 on momondo.

What cabin class options are available on Hong Kong Intl to Ko Samui flights?

There are 2 cabin classes available to choose from on Hong Kong Intl to Ko Samui flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Hong Kong to Ko Samui flight prices changed over time?

As of February 2026, prices for Hong Kong to Ko Samui flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Hong Kong to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Hong Kong to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hong Kong to Ko Samui (HKG to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hong Kong to Ko Samui

Best Price Found

$297

Fastest flight time

3h 30m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Ko Samui

1 airport
The best one-way flight to Ko Samui from Hong Kong in the past 72 hours is $297. The best round-trip flight deal from Hong Kong to Ko Samui found on momondo in the last 72 hours is $500.
The fastest flight from Hong Kong to Ko Samui takes 3h 30m
Direct flights go from Hong Kong to Ko Samui on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Ko Samui. From Hong Kong there are direct flights to Ko Samui (USM).
Search flight deals

  • How far is Hong Kong Intl to Ko Samui by plane?

    Hong Kong Intl and Ko Samui are 1286.7 mi apart from one another. Flights usually cover this in 3h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Hong Kong Intl Airport to Ko Samui Airport?

    Prices for flights from Hong Kong Intl Airport to Ko Samui Airport are updated daily.

  • How many operators does momondo search for flights from Hong Kong Intl Airport to Ko Samui Airport?

  • How old do you have to be to fly from Hong Kong Intl Airport to Ko Samui Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Hong Kong Intl Airport to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Hong Kong to Ko Samui?

  • What is the most popular airline from Hong Kong to Ko Samui?

Best airlines flying from Hong Kong to Ko Samui

Compare and see reviews for airlines that fly from Hong Kong to Ko Samui with momondo
Airline
Rating
Free Cancellation
Price
Bangkok AirwaysPriceFrom $286Free CancellationRating
8.0
121 reviews
Search Bangkok Airways flights
Cathay PacificPriceFrom $576Free CancellationRating
7.6
1,159 reviews
Search Cathay Pacific flights

  • Bangkok Airways Flights From Hong Kong to Ko Samui

    Bangkok Airways operates around 7 flights from Hong Kong to Ko Samui every week. The average price of these flights found in the last 72 hours has been $514, but momondo users have found Bangkok Airways deals from Hong Kong to Ko Samui from as low as $286 round-trip. Bangkok Airways has been scored 8.0/10 in 121 reviews.

  • Cathay Pacific Flights From Hong Kong to Ko Samui

    Cathay Pacific (7.6/10 from 1,159 reviews) operates around 7 flights from Hong Kong to Ko Samui in any given week. The average Cathay Pacific airfare for this route is around $644, with deals from around $576 rare but found on momondo. Referenced prices are for round-trip Hong Kong to Ko Samui flight searches in the last 72 hours.

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
Khanom

Why use momondo?

Why should I use momondo to find a flight deal from Hong Kong to Ko Samui?

It is quick and easy to find Hong Kong to Ko Samui flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ko Samui that suits you.

Can I find flights from Hong Kong to Ko Samui with flexible booking policies on momondo?

All flight searches from Hong Kong to Ko Samui on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Hong Kong to Ko Samui?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Hong Kong to Ko Samui.

I’m not ready to book a flight from Hong Kong to Ko Samui right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Hong Kong to Ko Samui flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Ko Samui trip

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