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$394+ Cheap flights to Ko Samui

— USM
22 Oct — 29 Oct1
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

Mon 2/1120:05 -
2 stops28h 20m
Tue 17/1118:05 -
1 stop14h 05m
Deal found 18/9$741
Mon 2/1120:05 -
1 stop18h 50m
Tue 17/1118:05 -
1 stop14h 05m
Deal found 18/9$746
Sun 1/1120:05 -
2 stops27h 45m
Tue 17/1118:05 -
1 stop14h 05m
Deal found 18/9$755
Sun 1/1120:05 -
1 stop18h 50m
Tue 17/1118:05 -
1 stop14h 05m
Deal found 18/9$791
Mon 2/1120:05 -
1 stop18h 50m
Wed 11/1118:05 -
1 stop20h 45m
Deal found 21/9$836
Fri 30/1013:25 -
1 stop31h 45m
Thu 12/1112:00 -
1 stop20h 10m
Deal found 21/9$852
Fri 30/1012:35 -
2 stops22h 35m
Fri 13/1120:30 -
2 stops34h 05m
Deal found 22/9$856
Fri 30/1013:25 -
1 stop33h 30m
Fri 13/1118:05 -
1 stop20h 45m
Deal found 22/9$858

Find flight deals to Ko Samui

Return from

$741

One-way from

$416

Popular in

December

Cheapest in

March

Average price

$1,376
Scoot
  • Scoot
  • 2/11-17/11
  • 3 total stops
  • 42h 25m total
  • Sydney to Ko Samui
Search Deals
31/10-31/12
  • 31/10-31/12
  • 2 total stops
  • 27h 45m total
  • Sydney to Ko Samui
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($167 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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
Fastest return journey

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 20/1

20:05-08:00

1 stop15h 55m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$394

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 20/1

11:25-08:10

2 stops24h 45m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$640

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 30/9

20:35-18:50

1 stop25h 15m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$699

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 12/10

12:25-11:15

2 stops26h 50m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$752

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 2/11

20:05-19:50

2 stops27h 45m

Ko Samui

Tue 17/11

10:20-12:10

2 stops21h 50m

$825

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Fri 30/10

12:35-07:10

2 stops22h 35m

Ko Samui

Fri 13/11

20:30-10:35

2 stops34h 05m

$856

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sat 17/10

14:05-14:40

1 stop28h 35m

Ko Samui

Sat 24/10

19:00-12:10

2 stops37h 10m

$1,014

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Fri 25/12

20:05-10:55

1 stop18h 50m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,067

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 28/10

20:05-18:55

1 stop26h 50m

Ko Samui

Sun 1/11

18:05-18:50

1 stop20h 45m

$1,210

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 4/11

10:25-19:50

1 stop13h 25m

Ko Samui

Mon 9/11

14:25-07:35

1 stop13h 10m

$1,380

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 14 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

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 36 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

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
1,607 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SIN - JFK

On schedule, courteous, and attentive crew. Really old aircraft and restrooms are not looking good.
Singapore Airlines
8.2
Very Good
1,607 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SIN - JFK

On schedule, courteous, and attentive crew. Really old aircraft and restrooms are not looking good.
Thai Airways
7.9
Good
422 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SIN - JFK

On schedule, courteous, and attentive crew. Really old aircraft and restrooms are not looking good.
Qantas Airways
7.5
Good
1,101 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SIN - JFK

On schedule, courteous, and attentive crew. Really old aircraft and restrooms are not looking good.
Scoot
6.7
Okay
336 reviews
Singapore Airlines
8.2
Very Good
1,607 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Food

7.8

Boarding

8.3

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2026

SIN - JFK

On schedule, courteous, and attentive crew. Really old aircraft and restrooms are not looking good.

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 $77, while return flights cost around $125.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around $425, however they can be found for as little as $125.

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

    For those looking to save time traveling to Ko Samui, Perth offers the quickest one-way flight (7 hours 15 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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