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Cheap flights from Cairns to Ko Samui from $1,333

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — USM
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cairns to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Cairns to Ko Samui
Explore the most affordable flight options available from Cairns to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2026.

Thu 20/815:35
CNS
-
USM
2 stops30h 15m
Multiple Airlines
Tue 25/818:15
USM
-
CNS
2 stops25h 10m
Multiple Airlines
Deal found 26/6$1,333
Tue 1/918:15
CNS
-
USM
1 stop16h 30m
Singapore Airlines
Tue 8/908:40
USM
-
CNS
1 stop29h 20m
Singapore Airlines
Deal found 29/6$1,336
Tue 1/918:15
CNS
-
USM
2 stops19h 50m
Multiple Airlines
Tue 8/908:40
USM
-
CNS
1 stop29h 20m
Multiple Airlines
Deal found 29/6$1,342
Sat 31/1017:00
CNS
-
USM
2 stops29h 50m
Qantas Airways
Wed 4/1113:45
USM
-
CNS
2 stops24h 10m
Qantas Airways
Deal found 28/6$1,587
Mon 27/711:00
CNS
-
USM
2 stops34h 50m
Multiple Airlines
Sun 2/819:45
USM
-
CNS
2 stops23h 45m
Multiple Airlines
Deal found 30/6$1,601
Mon 27/718:15
CNS
-
USM
1 stop40h 30m
Singapore Airlines
Sun 2/815:25
USM
-
CNS
2 stops22h 35m
Singapore Airlines
Deal found 30/6$2,094
Sun 27/1219:15
CNS
-
USM
2 stops39h 45m
Multiple Airlines
Fri 8/108:55
USM
-
CNS
2 stops17h 50m
Multiple Airlines
Deal found 27/6$2,235

Find flight deals from Cairns to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Cairns (CNS) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 July 2026.

Round-trip from

$1,333
20/8-25/8
  • 20/8-25/8
  • 4 total stops
  • 55h 25m total
  • Cairns to Ko Samui
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cairns to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 1 July 2026.
Use the filters below to find and compare flights from Cairns to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Tue 1/9

18:15-07:45

1 stop16h 30m

Ko Samui

Tue 8/9

08:40-17:00

1 stop29h 20m

$1,336

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sat 31/10

17:00-19:50

2 stops29h 50m

Ko Samui

Wed 4/11

13:45-16:55

2 stops24h 10m

$1,587

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 27/7

11:00-18:50

2 stops34h 50m

Ko Samui

Sun 2/8

19:45-22:30

2 stops23h 45m

$1,601

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 27/12

19:15-08:00

2 stops39h 45m

Ko Samui

Fri 8/1

08:55-05:45

2 stops17h 50m

$2,235

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Thu 20/8

13:40-19:40

2 stops57h 00m

Ko Samui

Tue 25/8

16:25-17:00

1 stop21h 35m

$2,437

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 27/12

18:20-17:10

1 stop25h 50m

Ko Samui

Fri 8/1

08:55-17:20

1 stop29h 25m

$2,497

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 27/12

09:00-08:00

2 stops26h 00m

Ko Samui

Sat 2/1

11:10-22:10

2 stops32h 00m

$2,605

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Sorted by cheapest first

Best time to book a flight from Cairns to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Cairns 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.

Related info for your journey

Find useful and relevant information for your journey from Cairns to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cairns to Ko Samui?

    For as low as $1,336, Singapore Airlines can have you in Ko Samui from Cairns in 16h 30m. The distance from Cairns to Ko Samui is about 5816 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Cairns to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Cairns to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cairns to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cairns to Ko Samui.

  • Can I find deals for business class flights from Cairns to Ko Samui?

    Yes. Cheapflights offers flight deals from Cairns to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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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How does Cheapflights help users find flights from Cairns to Ko Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cairns 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 from Cairns to Ko Samui?

Millions of users choose and trust Cheapflights to book the best flight deals from Cairns to Ko Samui for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to Ko Samui from Cairns shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cairns to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on Cairns to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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