When did momondo last update prices for flights from Cairns Airport to Ko Samui Airport?

Prices for flights from Cairns Airport to Ko Samui Airport were last updated today.

How many operators does momondo search for flights from Cairns Airport to Ko Samui Airport?

As of September 2026, there is 1 operator available to choose from for flights from Cairns Airport to Ko Samui Airport.

How old do you have to be to fly from Cairns Airport to Ko Samui Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Cairns Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$658 Cheap Flights from Cairns to Ko Samui in 2026/27

Find the cheapest flights from Cairns to Ko Samui

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

09:45 - 17:10CNS Cairns-USM Ko Samui

34h 25m3 stops Melbourne Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,198Multiple Airlines

Tue, 1 Dec - Sat, 5 Dec

19:15 - 17:10CNS Cairns-USM Ko Samui

24h 55m2 stops Denpasar Bali Ngurah Rai Singapore Changi

18:05 - 17:15USM Ko Samui-CNS Cairns

20h 10m1 stop Singapore Changi

$1,222Multiple Airlines

Mon, 30 Nov - Sat, 5 Dec

09:45 - 17:10CNS Cairns-USM Ko Samui

34h 25m3 stops Melbourne Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,232Multiple Airlines

Tue, 1 Dec - Fri, 4 Dec

09:45 - 08:00CNS Cairns-USM Ko Samui

25h 15m3 stops Melbourne Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,240Multiple Airlines

Tue, 1 Dec - Wed, 2 Dec

09:45 - 08:00CNS Cairns-USM Ko Samui

25h 15m3 stops Melbourne Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,249Multiple Airlines

Tue, 1 Dec - Thu, 3 Dec

19:15 - 17:10CNS Cairns-USM Ko Samui

24h 55m2 stops Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,249Multiple Airlines

Mon, 30 Nov - Thu, 3 Dec

09:45 - 08:00CNS Cairns-USM Ko Samui

25h 15m3 stops Melbourne Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,254Multiple Airlines

Thu, 3 Dec - Sat, 5 Dec

19:15 - 17:10CNS Cairns-USM Ko Samui

24h 55m2 stops Denpasar Bali Ngurah Rai Singapore Changi

19:50 - 17:15USM Ko Samui-CNS Cairns

18h 25m1 stop Singapore Changi

$1,257Multiple Airlines

Mon, 30 Nov - Fri, 4 Dec

18:40 - 17:10CNS Cairns-USM Ko Samui

25h 30m1 stop Singapore Changi

18:05 - 17:15USM Ko Samui-CNS Cairns

44h 10m1 stop Singapore Changi

$1,395Singapore Airlines

Wed, 4 Nov - Wed, 11 Nov

18:20 - 17:10CNS Cairns-USM Ko Samui

25h 50m1 stop Singapore Changi

08:55 - 17:15USM Ko Samui-CNS Cairns

29h 20m1 stop Singapore Changi

$1,574Singapore Airlines

Wed, 24 Feb - Sat, 27 Feb

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Singapore Airlines flights from Cairns to Ko Samui

Our best Singapore Airlines deals on Cairns to Ko Samui flight tickets

Singapore Airlines

4 Nov

CNS18:40Cairns

25h 30m

1 stop

USM17:10Ko Samui

11 Nov

USM18:05Ko Samui

44h 10m

1 stop

CNS17:15Cairns

$1,395

Singapore Airlines

24 Feb

CNS18:20Cairns

25h 50m

1 stop

USM17:10Ko Samui

27 Feb

USM08:55Ko Samui

29h 20m

1 stop

CNS17:15Cairns

$1,574

Singapore Airlines

24 Feb

CNS18:20Cairns

25h 50m

1 stop

USM17:10Ko Samui

27 Feb

USM08:55Ko Samui

29h 20m

1 stop

CNS17:15Cairns

$1,576

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Tue 1/12

09:45-17:10

3 stops34h 25m

Ko Samui

Sat 5/12

19:50-17:15

1 stop18h 25m

$1,198

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Mon 30/11

19:15-17:10

2 stops24h 55m

Ko Samui

Sat 5/12

18:05-17:15

1 stop20h 10m

$1,222

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Tue 1/12

09:45-17:10

3 stops34h 25m

Ko Samui

Fri 4/12

19:50-17:15

1 stop18h 25m

$1,232

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Tue 1/12

09:45-08:00

3 stops25h 15m

Ko Samui

Wed 2/12

19:50-17:15

1 stop18h 25m

$1,240

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Tue 1/12

09:45-08:00

3 stops25h 15m

Ko Samui

Thu 3/12

19:50-17:15

1 stop18h 25m

$1,249

Fastest return journey

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Mon 30/11

19:15-17:10

2 stops24h 55m

Ko Samui

Thu 3/12

19:50-17:15

1 stop18h 25m

$1,249

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Thu 3/12

09:45-08:00

3 stops25h 15m

Ko Samui

Sat 5/12

19:50-17:15

1 stop18h 25m

$1,254

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Mon 30/11

19:15-17:10

2 stops24h 55m

Ko Samui

Fri 4/12

19:50-17:15

1 stop18h 25m

$1,257

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Wed 4/11

18:40-17:10

1 stop25h 30m

Ko Samui

Wed 11/11

18:05-17:15

1 stop44h 10m

$1,395

CairnsKo Samui

CNS Cairns - USM Ko Samui

CNSUSM

Cairns

Wed 24/2

18:20-17:10

1 stop25h 50m

Ko Samui

Sat 27/2

08:55-17:15

1 stop29h 20m

$1,574

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cairns to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Cairns to Ko Samui?

Singapore Airlines is the most popular carrier operating from Cairns to Ko Samui

When to book flights from Cairns to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Cairns to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Cairns to Ko Samui (CNS to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cairns to Ko Samui

Best price found	$658
Fastest flight time	24h 55m
Direct flights	None

The best one-way flight to Ko Samui from Cairns in the past 72 hours is $658. The best return flight deal from Cairns to Ko Samui found on momondo in the last 72 hours is $1,198.

The fastest flight from Cairns to Ko Samui takes 24h 55m

There are no direct flights from Cairns to Ko Samui. There are no popular flight routes from Cairns to Ko Samui.

Search flight deals

Frequently asked questions about flying from Cairns to Ko Samui

How far is Cairns to Ko Samui by plane?
Cairns and Ko Samui are 5819.1 km apart from one another. 24h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Cairns Airport to Ko Samui Airport?
Prices for flights from Cairns Airport to Ko Samui Airport were last updated today.
How many operators does momondo search for flights from Cairns Airport to Ko Samui Airport?
As of September 2026, there is 1 operator available to choose from for flights from Cairns Airport to Ko Samui Airport.
How old do you have to be to fly from Cairns Airport to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Cairns Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Cairns to Ko Samui?
Based on momondo bookings for flights between Cairns and Ko Samui, the leading airline is Singapore Airlines, making up 100% of the total bookings.

Best airlines flying from Cairns to Ko Samui

Compare and see reviews for airlines that fly from Cairns to Ko Samui with momondo

Airline	Rating	Free cancellation	Price
Singapore Airlines	PriceFrom $1,319	Free cancellation	Rating 8.2 1,606 reviews		Search Singapore Airlines flights

Ko Pha Ngan

Ko Tao

Khanom

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Why should I use momondo to find a flight deal from Cairns to Ko Samui?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cairns to Ko Samui for you.

Can I find flights from Cairns to Ko Samui with flexible booking policies on momondo?

All flight searches from Cairns to Ko Samui on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Cairns to Ko Samui?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from Cairns.

I’m not ready to book a flight from Cairns to Ko Samui right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Cairns to Ko Samui flights. All you need is a valid email address and we will do the rest; it is that quick and easy.