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$396+ Cheap flights to Ko Samui

— USM
29 Oct — 5 Nov1
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

Fri 20/1113:25 -
1 stop31h 45m
Thu 3/1208:55 -
1 stop29h 55m
Deal found 29/9$814
Sun 25/1020:05 -
1 stop18h 50m
Tue 10/1118:05 -
1 stop14h 05m
Deal found 24/9$896
Tue 27/1013:25 -
1 stop25h 30m
Tue 3/1112:00 -
1 stop20h 10m
Deal found 29/9$904
Tue 27/1013:25 -
1 stop31h 45m
Sun 1/1118:05 -
1 stop20h 45m
Deal found 28/9$905
Tue 3/1120:05 -
1 stop25h 05m
Sat 14/1112:00 -
1 stop26h 50m
Deal found 25/9$919
Fri 20/1113:25 -
1 stop31h 45m
Thu 3/1217:40 -
2 stops21h 10m
Deal found 29/9$931
Wed 18/1113:25 -
1 stop31h 45m
Thu 3/1219:50 -
1 stop19h 00m
Deal found 29/9$964
Sun 25/1012:35 -
2 stops35h 50m
Tue 10/1107:00 -
2 stops23h 35m
Deal found 25/9$965
Fri 13/1115:10 -
2 stops33h 15m
Fri 20/1107:00 -
2 stops26h 20m
Deal found 29/9$969
Tue 13/1014:00 -
1 stop32h 50m
Fri 23/1018:15 -
1 stop22h 05m
Deal found 26/9$971
Tue 10/1115:10 -
2 stops33h 15m
Tue 17/1107:00 -
2 stops26h 20m
Deal found 26/9$972

Find flight deals to Ko Samui

Return from

$814

One-way from

$396

Popular in

December

Cheapest in

March

Average price

$1,400
Scoot
  • Scoot
  • 20/11-3/12
  • 2 total stops
  • 61h 40m total
  • Sydney to Ko Samui
Search Deals
Scoot
  • Scoot
  • 19/11-31/12
  • 1 total stop
  • 31h 45m total
  • Sydney to Ko Samui
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($159 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

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Thu 19/11

13:25-17:10

1 stop31h 45m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$396

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sat 3/10

20:35-20:25

2 stops26h 50m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$523

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Tue 6/10

14:00-07:10

2 stops45h 10m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$568

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Sat 3/10

20:35-18:50

1 stop25h 15m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$579

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Fri 2/10

13:00-18:50

1 stop32h 50m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$595

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

$758

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 12/10

15:35-21:10

1 stop33h 35m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$932
Fastest return journey

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 12/10

07:35-21:10

2 stops17h 35m

Ko Samui

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,141

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Wed 28/10

13:25-18:55

1 stop33h 30m

Ko Samui

Sun 1/11

18:05-12:10

1 stop14h 05m

$1,215

SydneyKo Samui

SYD Sydney Kingsford Smith - USM Ko Samui

SYDUSM

Sydney Kingsford Smith

Mon 9/11

10:00-19:50

1 stop13h 50m

Ko Samui

Tue 17/11

12:00-12:10

1 stop20h 10m

$1,278

Flights are sorted by cheapest return flights first.

Deals found on 29/9

Showing 1-10 of 18 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
1,618 reviews
Check prices

Overall

8.2

Crew

8.7

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

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
1,618 reviews
Singapore Airlines
8.2
Very Good
1,618 reviews
Check prices

Overall

8.2

Crew

8.7

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

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
425 reviews
Singapore Airlines
8.2
Very Good
1,618 reviews
Check prices

Overall

8.2

Crew

8.7

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

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
1,102 reviews
Singapore Airlines
8.2
Very Good
1,618 reviews
Check prices

Overall

8.2

Crew

8.7

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

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
336 reviews
Singapore Airlines
8.2
Very Good
1,618 reviews
Check prices

Overall

8.2

Crew

8.7

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

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, Singapore Airlines 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 $78, while return flights cost around $249.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around $434, however they can be found for as little as $249.

  • 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 (9 hours 20 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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