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$379+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
9 Sep — 16 Sep1
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 10 August 2026.

Wed 4/1113:25 -
1 stop22h 35m
Wed 11/1119:45 -
1 stop19h 05m
Deal found 9/8$755
Wed 21/1014:00 -
1 stop32h 50m
Wed 28/1012:00 -
1 stop20h 10m
Deal found 7/8$805
Thu 15/1014:00 -
1 stop32h 50m
Sun 18/1008:40 -
1 stop24h 05m
Deal found 9/8$808
Thu 8/1014:00 -
1 stop32h 50m
Fri 30/1018:05 -
1 stop14h 05m
Deal found 7/8$840
Mon 12/1014:00 -
1 stop32h 50m
Mon 9/1108:55 -
1 stop29h 55m
Deal found 9/8$857
Wed 4/1113:25 -
1 stop22h 35m
Wed 11/1118:05 -
2 stops24h 15m
Deal found 9/8$863
Mon 2/1113:25 -
1 stop31h 45m
Mon 9/1119:45 -
1 stop19h 05m
Deal found 6/8$867
Sun 6/920:35 -
1 stop25h 15m
Mon 21/919:45 -
1 stop13h 00m
Deal found 5/8$900
Fri 11/909:45 -
2 stops25h 40m
Sat 19/908:40 -
1 stop24h 05m
Deal found 9/8$915
Thu 15/1021:35 -
2 stops21h 05m
Sun 18/1008:40 -
1 stop24h 05m
Deal found 9/8$932
Mon 12/1021:35 -
1 stop25h 15m
Mon 9/1107:00 -
2 stops47h 00m
Deal found 9/8$936
Fri 4/920:35 -
1 stop25h 15m
Fri 11/919:45 -
1 stop13h 00m
Deal found 5/8$943

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 647,157 searches and data was last updated on 10 August 2026.

Return from

$755

One-way from

$423

Popular in

December

Cheapest in

March

Average price

$1,038
Scoot
  • Scoot
  • 4/11-11/11
  • 2 total stops
  • 41h 40m total
  • Sydney to Ko Samui
Search Deals
Scoot
  • Scoot
  • 12/10
  • 1 total stop
  • 32h 50m total
  • Sydney to Ko Samui
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($138 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average return price).
Search Deals
Average for return flights in August 2026
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 647,157 searches and data was last updated on 10 August 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Fri 4/9

06:00-07:45

2 stops28h 45m

Ko Samui

Fri 11/9

18:15-11:45

1 stop14h 30m

$1,079

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 8/11

13:25-11:00

1 stop25h 35m

Ko Samui

Thu 12/11

18:05-18:50

1 stop20h 45m

$1,153

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 16/9

22:10-13:45

2 stops18h 35m

Ko Samui

Wed 23/9

15:30-10:00

2 stops15h 30m

$1,467

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Thu 8/10

22:10-13:45

2 stops19h 35m

Ko Samui

Fri 30/10

15:35-10:20

2 stops14h 45m

$1,467

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sun 8/11

10:25-19:50

1 stop13h 25m

Ko Samui

Thu 12/11

13:25-10:25

2 stops17h 00m

$1,576

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Fri 4/9

10:15-17:45

3 stops34h 30m

Ko Samui

Fri 11/9

13:30-08:15

2 stops15h 45m

$1,747

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 23/12

20:05-18:50

1 stop26h 45m

Ko Samui

Wed 30/12

18:05-12:10

1 stop14h 05m

$1,795

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Thu 17/9

14:45-18:15

1 stop30h 30m

Ko Samui

Thu 8/10

16:25-14:25

2 stops18h 00m

$1,854
Fastest return journey

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Thu 1/10

10:20-21:10

1 stop13h 50m

Ko Samui

Fri 16/10

16:25-07:45

1 stop11h 20m

$1,870

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Tue 6/10

22:10-13:45

2 stops19h 35m

Ko Samui

Tue 20/10

15:50-11:00

2 stops15h 10m

$1,918

Flights are sorted by cheapest return flights first.

Deals found on 6/8

Showing 1-10 of 20 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?

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights to Ko Samui. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 10 August 2026.
Read through reviews of airlines serving Thailand, such as Singapore Airlines,Thai Airways, andQantas Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Singapore Airlines
8.2
Very Good
1,584 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Thai Airways
7.9
Good
414 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Qantas Airways
7.5
Good
1,081 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Scoot
6.7
Okay
327 reviews
Singapore Airlines
8.2
Very Good
1,584 reviews
Check prices

Entertainment

8.1

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

FAQs about flying to Ko Samui

What is good to know if travelling to Koh Samui?

  • Fisherman’s Village is packed with restaurants, shops, market stalls and bars. There is an Irish bar, naturally, called The Irish Times. The Billabong Surf Club flies the Aussie flag.
  • Hua Thanon is a Muslim village on the south coast. While there are some restaurants and a wonderful beach, seeing the fishermen at work and looking at their beautifully decorated boats is the best thing.
  • The bonus to playing a round of golf on Koh Samui are the beautiful views. The Santiburu Samui Country Club on the north coast is an 18-hole, par-72 course. The Royal Samui Golf and Country Club is located next to Chaweng Beach and will be an 18-hole course. It’s nine holes at present. There are views of Lamai, Cheweng and the surrounding islands.
  • Samui Shooting Sport is close to Chaweng about 200 metres from the Tesco Lotus superstore. It’s a great place to let off some steam with, perhaps, an AK-47. Elephant trekking is a gentler option. It’s a great, slow, way to go into Koh Samaui’s jungly heart.
  • From the pier at Bophut beach you can take a boat to Ko Pha Ngan or take a day trip to the Ang Thong National Marine Park, which consists of 42 limestone islands with soaring mountains, sheer cliffs and dense, green forest.
  • Hin Ta and Hin Yai – Grandfather Rock and Grandmother Rock – provide a quirky photo op. The rocks, south of Chaweng beach, are shaped, suggestively, like male and female genitalia.
  • The Muay Thai stadium in Chaweng town is worth a visit to experience this traditional sport.

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

    For a flight to Ko Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 3.3 km from the centre of the city.

  • 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, Scoot 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 $109, while return flights cost around $236.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around $334, however they can be found for as little as $236.

  • Where does the fastest flight to Ko Samui depart from?

    For those looking to save time traveling to Ko Samui, Melbourne offers the quickest one-way flight (11 hours 50 minutes).

  • Does Ko Samui have car hire?

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

Cheapflights does show flights with no change fees to all users. To see these options for flights to Ko Samui, users can toggle the no change fees filter when performing a flight search.

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