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Cheap flights from Cairns to Ko Samui from $1,437

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — USM
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 November 2025.

Round-trip from

$1,437
Qantas Airways
  • Qantas Airways
  • 16/3-18/3
  • 4 total stops
  • 54h 50m total
  • Cairns to Ko Samui
Search Deals

Find 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 7 November 2025.

Mon 29/1217:35CNS - USM
2 stops29h 00mMultiple Airlines
Mon 12/114:30USM - CNS
2 stops16h 25mMultiple Airlines
Deal found 6/11$2,454
Mon 29/1211:35CNS - USM
2 stops35h 00mCathay Pacific
Mon 12/108:30USM - CNS
2 stops22h 25mCathay Pacific
Deal found 7/11$2,498

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 7 November 2025.
Use the filters below to find and compare flights from Cairns to Ko Samui that are best for you.

Fly from

Cairns

Fly to

Ko Samui

Route

Depart

Return

Price

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 16/3

11:35-21:05

2 stops36h 30m

Ko Samui

Wed 18/3

13:25-10:45

2 stops18h 20m

$1,437

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 16/3

11:35-19:35

2 stops35h 00m

Ko Samui

Wed 18/3

11:40-16:50

2 stops50h 10m

$1,751

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 29/12

17:35-19:35

2 stops29h 00m

Ko Samui

Mon 12/1

14:30-09:55

2 stops16h 25m

$2,454

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 29/12

11:35-19:35

2 stops35h 00m

Ko Samui

Mon 12/1

08:30-09:55

2 stops22h 25m

$2,498

Flights are sorted by cheapest return flights first.

Deals found on 5/11

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.

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 7 November 2025.
See what other customers who have flown with Singapore Airlines from Cairns to Ko Samui have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,393 reviews
Check prices

Overall

8.1

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.
Singapore Airlines
8.1
Very Good
1,393 reviews
Singapore Airlines
8.1
Very Good
1,393 reviews
Check prices

Overall

8.1

Comfort

8.0

Entertainment

8.0

Boarding

8.3

Crew

8.6

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

BCN - SIN

Staff at Barcelona were fantastic, they helped me change a flight and nothing was any problem. Thank you Dina.

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 $1,751, Qantas Airways can have you in Ko Samui from Cairns in 35h. 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Cairns to Ko Samui

Discover the top airline that operate flights from Cairns to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,083Average$1,464FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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 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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