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HK$1,357+ Cheap flights to Ko Samui

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 26-4. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
19 Feb — 26 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Ko Samui in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Ko Samui
Explore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 20 January 2026.

Tue 10-317:05
HKG
-
USM
Nonstop3h 30m
Bangkok Airways
Thu 2-411:55
USM
-
HKG
Nonstop3h 25m
Bangkok Airways
Deal found 20-1HK$4,188
Fri 23-113:30
HKG
-
USM
1 stop7h 20m
Multiple Airlines
Sun 25-121:20
USM
-
HKG
1 stop7h 25m
Multiple Airlines
Deal found 17-1HK$4,195
Tue 27-117:05
HKG
-
USM
Nonstop3h 30m
Multiple Airlines
Fri 30-118:05
USM
-
HKG
1 stop20h 20m
Multiple Airlines
Deal found 18-1HK$4,203
Thu 5-316:25
HKG
-
USM
1 stop25h 45m
Multiple Airlines
Thu 12-311:40
USM
-
HKG
Nonstop3h 15m
Multiple Airlines
Deal found 19-1HK$4,211
Tue 3-214:20
HKG
-
USM
1 stop7h 10m
Multiple Airlines
Thu 12-219:00
USM
-
HKG
1 stop7h 50m
Multiple Airlines
Deal found 19-1HK$4,219
Sun 25-107:50
HKG
-
USM
1 stop24h 55m
Multiple Airlines
Fri 30-119:45
USM
-
HKG
2 stops38h 30m
Multiple Airlines
Deal found 19-1HK$4,227
Wed 21-118:50
HKG
-
USM
2 stops14h 10m
Multiple Airlines
Sun 25-121:20
USM
-
HKG
1 stop16h 20m
Multiple Airlines
Deal found 19-1HK$4,234
Wed 21-117:05
HKG
-
USM
Nonstop3h 30m
Multiple Airlines
Mon 26-119:45
USM
-
HKG
1 stop18h 35m
Multiple Airlines
Deal found 17-1HK$4,242
Tue 3-214:20
HKG
-
USM
1 stop7h 10m
Multiple Airlines
Mon 16-208:15
USM
-
HKG
1 stop6h 15m
Multiple Airlines
Deal found 19-1HK$4,250
Fri 23-111:25
HKG
-
USM
2 stops21h 35m
Multiple Airlines
Fri 30-119:00
USM
-
HKG
2 stops18h 40m
Multiple Airlines
Deal found 18-1HK$4,266
Tue 20-117:05
HKG
-
USM
Nonstop3h 30m
Multiple Airlines
Fri 23-119:45
USM
-
HKG
1 stop18h 40m
Multiple Airlines
Deal found 19-1HK$4,273

Find flight deals to Ko Samui

Find the latest flights to Ko Samui in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 20 January 2026.

Return from

HK$4,188

One-way from

HK$1,357

Popular in

February

Cheapest in

September

Average price

HK$4,227

Good round-trip deal

HK$4,079 or less
Bangkok Airways
  • Bangkok Airways
  • 10-3-2-4
  • Nonstop
  • 6h 55m total
  • Hong Kong to Ko Samui
Search Deals
26-4
  • 26-4
  • 1 total stop
  • 10h 10m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (HK$375 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$103 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
Search Deals
Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.
Search Deals

Cheapflights Fare Finder

 
Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 20 January 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 5-3

11:50-17:30

1 stop6h 40m

Ko Samui

Sat 28-3

11:40-15:55

Nonstop3h 15m

HK$4,211

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 22-2

14:25-19:50

1 stop6h 25m

Ko Samui

Fri 27-2

19:00-12:25

2 stops16h 25m

HK$4,219

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 7-2

13:30-21:20

1 stop8h 50m

Ko Samui

Fri 13-2

11:40-15:55

Nonstop3h 15m

HK$4,258

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 19-2

13:40-08:25

2 stops19h 45m

Ko Samui

Sun 22-2

15:50-17:45

2 stops24h 55m

HK$4,351

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 4-3

15:30-07:30

2 stops17h 00m

Ko Samui

Wed 11-3

17:40-10:10

2 stops15h 30m

HK$4,382

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 27-3

14:20-20:30

1 stop7h 10m

Ko Samui

Mon 6-4

06:00-14:20

1 stop7h 20m

HK$4,382

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 6-4

07:55-13:55

1 stop7h 00m

Ko Samui

Sun 12-4

19:00-11:50

2 stops15h 50m

HK$4,390

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 8-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Thu 2-4

11:55-16:20

Nonstop3h 25m

HK$4,429

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 22-2

07:25-13:50

1 stop7h 25m

Ko Samui

Sat 28-2

13:55-21:20

1 stop6h 25m

HK$4,538

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 8-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 3-4

11:55-16:20

Nonstop3h 25m

HK$4,554

Flights are sorted by cheapest return flights first.

Deals found on 20-1

Showing 1-10 of 20 results
1
2

Best time to book a flight to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui 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 to Ko Samui

When is the best time to book a flight 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 16 January 2026.

The price you pay for your flight to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 29 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

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 20 January 2026.
See what other customers who have flown with Bangkok Airways, 泰國航空, andCathay Pacific to Thailand have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.1
Very Good
120 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

6.3

Overall

8.1

Comfort

8.0

Food

7.3

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
8.1
Very Good
120 reviews
Bangkok Airways
8.1
Very Good
120 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

6.3

Overall

8.1

Comfort

8.0

Food

7.3

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.
泰國航空
7.8
Good
379 reviews
Bangkok Airways
8.1
Very Good
120 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

6.3

Overall

8.1

Comfort

8.0

Food

7.3

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
1,140 reviews
Bangkok Airways
8.1
Very Good
120 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

6.3

Overall

8.1

Comfort

8.0

Food

7.3

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.

FAQs about flying to Ko Samui

  • What airport do you fly into for flights to Ko Samui?

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre. On average, Ko Samui has 8 flights from Hong Kong per day from 3 airlines.

  • Can I find cheaper flights to Ko Samui if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ko Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ko Samui?

    Based on reviews from Cheapflights users, Bangkok Airways is rated the highest out of the airlines that fly to Ko Samui.

  • Does Ko Samui have rental cars?

    Yes. Those touching down at Ko Samui can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ko Samui?

    Yes. Ko Samui has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui (0.0 km away from Ko Samui).

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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How does Cheapflights help users find flights to Ko Samui?

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui.

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Yes, we can. To see specific flights to Ko Samui with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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