This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17-11. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
9 Dec — 16 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Flights to Ko Samui in 2026
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
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 9 November 2026.
Sun 8-1107:25 -
1 stop11h 05m
Sun 15-1118:05 -
1 stop25h 30m
Deal found 7-11HK$3,135
Mon 16-1116:55 -
1 stop15h 15m
Mon 23-1106:45 -
1 stop20h 45m
Deal found 7-11HK$3,143
Wed 2-1221:40 -
1 stop10h 30m
Sat 5-1208:15 -
1 stop6h 15m
Deal found 6-11HK$3,277
Fri 6-1121:00 -
2 stops35h 10m
Fri 13-1111:40 -
Nonstop3h 15m
Deal found 5-11HK$3,324
Best flights to Ko Samui
Discover carefully curated flight deals to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.
Wed 3-321:40 -
1 stop10h 30m
Tue 9-307:00 -
1 stop6h 35m
Deal found 8-11HK$3,026
Fri 26-217:05 -
Nonstop3h 30m
Sat 6-311:40 -
Nonstop3h 15m
Deal found 8-11HK$4,601
Fri 29-117:05 -
Nonstop3h 30m
Sat 30-111:40 -
Nonstop3h 15m
Deal found 8-11HK$5,095
Fri 15-116:55 -
1 stop15h 00m
Mon 25-107:55 -
1 stop5h 40m
Deal found 7-11HK$3,810
Tue 9-217:05 -
Nonstop3h 30m
Mon 15-218:45 -
1 stop15h 30m
Deal found 4-11HK$4,695
Tue 22-1214:00 -
1 stop7h 30m
Tue 29-1212:10 -
1 stop15h 20m
Deal found 7-11HK$4,852
Tue 29-1214:30 -
1 stop6h 55m
Mon 4-107:15 -
1 stop7h 20m
Deal found 5-11HK$5,432
Tue 9-207:50 -
2 stops12h 20m
Mon 15-220:30 -
1 stop7h 00m
Deal found 4-11HK$5,244
Direct flights to Ko Samui
Explore direct flight options to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 November 2026.
Thu 29-417:20 -
Nonstop3h 20m
Sat 1-511:55 -
Nonstop3h 25m
Deal found 5-11HK$4,327
Fri 15-117:05 -
Nonstop3h 30m
Sun 24-111:40 -
Nonstop3h 15m
Deal found 7-11HK$4,343
Mon 3-517:20 -
Nonstop3h 20m
Thu 6-511:55 -
Nonstop3h 25m
Deal found 5-11HK$4,390
Fri 26-217:05 -
Nonstop3h 30m
Sat 6-311:40 -
Nonstop3h 15m
Deal found 5-11HK$4,578
Thu 3-1217:05 -
Nonstop3h 30m
Thu 10-1211:40 -
Nonstop3h 15m
Deal found 4-11HK$4,766
Sat 30-117:05 -
Nonstop3h 30m
Thu 4-211:40 -
Nonstop3h 15m
Deal found 8-11HK$4,813
Fri 29-117:05 -
Nonstop3h 30m
Mon 1-211:40 -
Nonstop3h 15m
Deal found 8-11HK$4,884
Tue 9-217:05 -
Nonstop3h 30m
Mon 15-211:40 -
Nonstop3h 15m
Deal found 4-11HK$4,907
Last-minute flights to Ko Samui
Discover last-minute flight deals to Ko Samui. Data last updated 9 November 2026 and is based on user searches.
Fri 6-1121:00 -
2 stops35h 10m
Fri 13-1111:40 -
Nonstop3h 15m
Deal found 5-11HK$3,324
Sun 8-1107:25 -
1 stop11h 05m
Sun 15-1118:05 -
1 stop25h 30m
Deal found 7-11HK$3,135
Mon 16-1116:55 -
1 stop15h 15m
Mon 23-1106:45 -
1 stop20h 45m
Deal found 7-11HK$3,143
Wed 2-1221:40 -
1 stop10h 30m
Sat 5-1208:15 -
1 stop6h 15m
Deal found 6-11HK$3,277
One-way flights to Ko Samui
Search for one-way flight options to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.
Tue 17-1116:55 -
1 stop15h 15m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-11HK$1,411
Mon 16-1116:55 -
1 stop15h 15m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-11HK$1,482
Mon 16-1117:05 -
Nonstop3h 30m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-11HK$1,552
Sun 17-107:50 -
1 stop11h 25m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-11HK$1,568
Thu 21-121:40 -
1 stop15h 40m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 6-11HK$1,576
Thu 3-1207:25 -
1 stop14h 25m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 7-11HK$1,662
Wed 18-1116:55 -
1 stop27h 40m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-11HK$1,693
Mon 18-116:55 -
1 stop15h 50m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-11HK$1,709
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 7,457,451 searches and data was last updated on 9 November 2026.
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 7,457,451 searches and data was last updated on 9 November 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 Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Tue 17-11
16:55-07:10
1 stop15h 15m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$1,434
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Wed 18-11
16:55-19:35
1 stop27h 40m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$1,693
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Fri 22-1
14:00-06:55
1 stop17h 55m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$1,709
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Fri 26-3
20:30-07:10
1 stop11h 40m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$1,881
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Sun 31-1
21:40-12:20
1 stop15h 40m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$2,101
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Thu 21-1
08:10-18:55
2 stops11h 45m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$2,171
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Thu 24-12
12:05-20:50
1 stop9h 45m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$2,375
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Tue 22-12
14:00-20:30
1 stop7h 30m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$2,555
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Sat 5-12
07:55-16:15
2 stops9h 20m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$2,720
Fastest return journey
Hong KongKo Samui
HKG Hong Kong Intl - USM Ko Samui
HKGUSM
Hong Kong Intl
Sun 31-1
17:05-19:35
Nonstop3h 30m
Ko Samui
Wed 31-12
00:00-01:00
Nonstop0h 00m
HK$2,932
Flights are sorted by cheapest return flights first.
Deals found on 8-11
Showing 1-10 of 18 resultsSorted by cheapest first
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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.
HKG-USM
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
Prices
Airlines
More
When is the best time to book a flight to Ko Samui?
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 1 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What are the cheapest airlines that fly to Ko Samui?
The cheapest airlines flying from Hong Kong to Ko Samui are 泰國航空, 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).
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.
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 9 November 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.
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 3 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.
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$1,842, while return flights cost around HK$4,326.
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).
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
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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