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HK$1,146+ 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 7-5. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
21 Feb — 28 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 22 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$4,187
Fri 23-117:05
HKG
-
USM
Nonstop3h 30m
Bangkok Airways
Thu 5-211:40
USM
-
HKG
Nonstop3h 15m
Bangkok Airways
Deal found 21-1HK$4,195
Thu 5-311:50
HKG
-
USM
1 stop6h 40m
Multiple Airlines
Sat 28-311:40
USM
-
HKG
Nonstop3h 15m
Multiple Airlines
Deal found 20-1HK$4,210
Fri 23-120:30
HKG
-
USM
1 stop12h 10m
Multiple Airlines
Sat 31-108:15
USM
-
HKG
1 stop6h 25m
Multiple Airlines
Deal found 21-1HK$4,218
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$4,226
Sat 7-316:25
HKG
-
USM
1 stop27h 25m
Multiple Airlines
Mon 30-314:35
USM
-
HKG
2 stops17h 30m
Multiple Airlines
Deal found 20-1HK$4,234
Fri 23-120:55
HKG
-
USM
1 stop11h 45m
Multiple Airlines
Sun 1-207:55
USM
-
HKG
1 stop5h 45m
Multiple Airlines
Deal found 21-1HK$4,242
Tue 10-317:05
HKG
-
USM
Nonstop3h 30m
Bangkok Airways
Wed 1-411:55
USM
-
HKG
Nonstop3h 25m
Bangkok Airways
Deal found 20-1HK$4,257
Sat 7-316:25
HKG
-
USM
1 stop27h 25m
Multiple Airlines
Tue 31-311:55
USM
-
HKG
Nonstop3h 25m
Multiple Airlines
Deal found 20-1HK$4,265
Fri 23-116:05
HKG
-
USM
1 stop16h 40m
Bangkok Airways
Fri 30-111:40
USM
-
HKG
Nonstop3h 15m
Bangkok Airways
Deal found 21-1HK$4,273
Sat 24-122:15
HKG
-
USM
1 stop10h 30m
Multiple Airlines
Thu 5-211:40
USM
-
HKG
Nonstop3h 15m
Multiple Airlines
Deal found 21-1HK$4,281
Fri 23-1010:10
HKG
-
USM
2 stops23h 25m
EVA Air
Fri 30-1010:00
USM
-
HKG
2 stops9h 50m
EVA Air
Deal found 21-1HK$4,288

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 22 January 2026.

Return from

HK$4,187

One-way from

HK$1,146

Popular in

February

Cheapest in

September

Average price

HK$4,226

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
7-5
  • 7-5
  • 1 total stop
  • 17h 50m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (HK$376 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$102 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 22 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

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 8-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 3-4

11:55-16:20

Nonstop3h 25m

HK$4,554

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 1-4

14:20-08:25

2 stops19h 05m

Ko Samui

Sat 4-4

11:55-16:20

Nonstop3h 25m

HK$4,639

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 1-4

17:20-19:40

Nonstop3h 20m

Ko Samui

Sat 4-4

11:55-16:20

Nonstop3h 25m

HK$4,710

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 8-3

16:10-13:05

2 stops21h 55m

Ko Samui

Mon 30-3

15:50-09:05

2 stops16h 15m

HK$4,741

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 6-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 13-3

11:40-15:55

Nonstop3h 15m

HK$4,803

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 14-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 21-3

11:40-15:55

Nonstop3h 15m

HK$4,811

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 17-4

21:45-14:45

2 stops18h 00m

Ko Samui

Mon 20-4

20:50-10:05

2 stops12h 15m

HK$4,858

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 7-5

14:20-07:10

1 stop17h 50m

HK$1,146

Flights are sorted by cheapest return flights first.

Deals found on 21-1

Showing 1-10 of 19 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 22 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

Entertainment

6.3

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.1

Overall

8.1

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

Entertainment

6.3

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.1

Overall

8.1

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

Entertainment

6.3

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.1

Overall

8.1

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

Entertainment

6.3

Comfort

8.0

Food

7.3

Crew

8.6

Boarding

8.1

Overall

8.1

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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Why should you use Cheapflights to find cheap flight tickets to Ko Samui?

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.

Can Cheapflights find flights to Ko Samui with no change fees?

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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