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HK$1,246+ 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 25-4. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
19 Apr — 26 Apr1
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 March 2026.

Sat 23-520:20
HKG
-
USM
1 stop11h 50m
Multiple Airlines
Wed 27-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,437
Thu 21-520:20
HKG
-
USM
1 stop11h 50m
Multiple Airlines
Fri 29-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,444
Thu 21-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Sun 31-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,460
Sun 3-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Mon 11-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 16-3HK$2,484
Wed 27-513:30
HKG
-
USM
1 stop8h 20m
Multiple Airlines
Fri 29-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,507
Mon 25-514:20
HKG
-
USM
1 stop6h 25m
Multiple Airlines
Sun 31-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 15-3HK$2,531
Thu 21-520:20
HKG
-
USM
1 stop11h 50m
Multiple Airlines
Sat 30-509:15
USM
-
HKG
1 stop5h 45m
Multiple Airlines
Deal found 15-3HK$2,546
Sun 24-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Sat 30-509:15
USM
-
HKG
1 stop5h 45m
Multiple Airlines
Deal found 15-3HK$2,562
Mon 4-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Mon 11-507:50
USM
-
HKG
1 stop10h 25m
Multiple Airlines
Deal found 16-3HK$2,570
Sat 23-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Fri 29-506:00
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 15-3HK$2,593
Mon 30-1108:55
HKG
-
USM
1 stop7h 00m
Multiple Airlines
Tue 8-1207:00
USM
-
HKG
1 stop6h 40m
Multiple Airlines
Deal found 16-3HK$2,609

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 March 2026.

Return from

HK$2,437

One-way from

HK$1,246

Popular in

February

Cheapest in

September

Average price

HK$4,489

Good round-trip deal

HK$3,830 or less
23-5-31-5
  • 23-5-31-5
  • 2 total stops
  • 22h 15m total
  • Hong Kong to Ko Samui
Search Deals
25-4
  • 25-4
  • 1 total stop
  • 10h 40m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (HK$461 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$161 potential savings vs. average return price).
Search Deals
Average for return flights in March 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 March 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

21:10-11:15

1 stop15h 05m

Ko Samui

Wed 20-5

17:50-18:05

1 stop23h 15m

HK$3,996

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

08:00-21:35

1 stop14h 35m

Ko Samui

Wed 20-5

11:55-16:20

Nonstop3h 25m

HK$4,246

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 22-5

12:35-18:50

1 stop7h 15m

Ko Samui

Mon 25-5

19:45-11:20

1 stop14h 35m

HK$4,395

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 10-4

09:25-20:50

1 stop12h 25m

Ko Samui

Thu 16-4

11:55-16:20

Nonstop3h 25m

HK$4,450

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 14-5

21:10-11:15

1 stop15h 05m

Ko Samui

Sat 30-5

17:50-18:05

1 stop23h 15m

HK$4,474

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 7-6

09:00-17:05

1 stop9h 05m

Ko Samui

Thu 11-6

11:55-16:20

Nonstop3h 25m

HK$4,693
Fastest return journey

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

17:20-19:40

Nonstop3h 20m

Ko Samui

Wed 20-5

11:55-16:20

Nonstop3h 25m

HK$4,748

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 14-5

09:00-20:50

1 stop12h 50m

Ko Samui

Wed 27-5

11:55-16:20

Nonstop3h 25m

HK$4,771

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 29-4

14:25-07:45

1 stop18h 20m

Ko Samui

Fri 8-5

08:40-23:00

1 stop13h 20m

HK$5,006
Cheapest one-way

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 11-4

18:40-18:50

2 stops25h 10m

HK$1,880

Flights are sorted by cheapest return flights first.

Deals found on 17-3

Showing 1-10 of 19 resultsSorted by cheapest first
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 13 March 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 17 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 March 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
128 reviews
Check prices

Boarding

8.1

Overall

8.1

Food

7.3

Entertainment

6.3

Comfort

8.0

Crew

8.6

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Overall

8.1

Food

7.3

Entertainment

6.3

Comfort

8.0

Crew

8.6

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
泰國航空
7.8
Good
394 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Overall

8.1

Food

7.3

Entertainment

6.3

Comfort

8.0

Crew

8.6

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Cathay Pacific
7.6
Good
1,218 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Overall

8.1

Food

7.3

Entertainment

6.3

Comfort

8.0

Crew

8.6

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

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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Some of the lowest fares we’ve come across for flights to Ko Samui.
Flights from Hong Kong to Ko Samui

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How does Cheapflights help users find flights to Ko Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Ko Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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.

Can Cheapflights notify me if prices for flights to Ko Samui become cheaper?

Yes, and it’s super simple to set up Price Alerts. Click the bell icon next to the flight deals above and provide your email address. That’s it!

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