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HK$1,177+ 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 7-10. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
6 Jul — 13 Jul1
1 adult

Flights to Ko Samui in 2025

Find the latest flights to Ko Samui in 2025, 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 1 July 2025.

Return from

HK$2,221

One-way from

HK$1,177

Popular in

April

Cheapest in

November

Average price

HK$4,694

Good round-trip deal

HK$3,974 or less
8-9-15-9
  • 8-9-15-9
  • 2 total stops
  • 30h 05m total
  • Hong Kong to Ko Samui
7-10
  • 7-10
  • 1 total stop
  • 12h 00m total
  • Hong Kong to Ko Samui
Highest demand for flights based on searches. 1% potential increase in price (HK$419 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (HK$390 potential savings vs. average return price).
Average for return flights in July 2025
Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.

Find flight deals to Ko Samui

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 1 July 2025.

Mon 8-920:10HKG - USM
1 stop21h 45mMultiple Airlines
Mon 15-919:00USM - HKG
1 stop8h 20mMultiple Airlines
Deal found 29-6HK$2,221
Wed 20-819:20HKG - USM
1 stop13h 30mScoot
Tue 26-808:45USM - HKG
1 stop10h 20mScoot
Deal found 29-6HK$2,936
Wed 10-921:30HKG - USM
1 stop15h 10mEmirates
Thu 18-908:45USM - HKG
1 stop8h 20mEmirates
Deal found 29-6HK$2,975
Sat 4-1012:25HKG - USM
1 stop7h 05mSingapore Airlines
Sat 11-1008:45USM - HKG
1 stop13h 15mSingapore Airlines
Deal found 30-6HK$3,446

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 1 July 2025.
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 8-9

20:10-16:55

1 stop21h 45m

Ko Samui

Mon 15-9

19:00-04:20

1 stop8h 20m

HK$2,221

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 20-8

19:20-07:50

1 stop13h 30m

Ko Samui

Tue 26-8

08:45-20:05

1 stop10h 20m

HK$2,936

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 10-9

21:30-11:40

1 stop15h 10m

Ko Samui

Thu 18-9

08:45-18:05

1 stop8h 20m

HK$2,975

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 4-10

12:25-18:30

1 stop7h 05m

Ko Samui

Sat 11-10

08:45-23:00

1 stop13h 15m

HK$3,446

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 7-10

20:20-07:20

1 stop12h 00m

HK$1,177

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 15-8

19:20-18:30

1 stop24h 10m

HK$1,680

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 28-11

17:05-19:35

Nonstop3h 30m

HK$2,033

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 30-7

16:15-18:35

Nonstop3h 20m

HK$2,535

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 1-11

13:30-09:20

2 stops20h 50m

HK$2,708

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 5-10

18:20-20:50

2 stops27h 30m

HK$3,313

Flights are sorted by cheapest return flights first.

Deals found on 1-7

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 27 June 2025.

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 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Ko Samui?

On average, a flight from Hong Kong to Ko Samui takes 3 hours 20 minutes. Flights to Ko Samui from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Ko Samui

The most flights from Hong Kong to Ko Samui are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from Hong Kong to Ko Samui are Bangkok Airways and Cathay Pacific.

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 58.0 - 490.0 mm per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

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 1 July 2025.
See what other customers who have flown with EVA Air, Emirates, andSingapore Airlines to Thailand have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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 6 flights from Hong Kong per day from 2 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.

  • What is the cheapest airport to fly to in Ko Samui?

    Ko Samui is currently the cheapest airport to fly to in Ko Samui. One-way flights to Ko Samui typically cost HK$938, while return flights cost around HK$1,836.

  • 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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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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