How do I get Price Alerts for flights from Cairns to Ko Samui?

Search flight deals from Cairns to Ko Samui . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Cairns to Ko Samui with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 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.

$677 Cheap Flights from Cairns to Ko Samui in 2026

Find the cheapest flights from Cairns to Ko Samui

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

19:00 - 17:20-

25h 20m

08:55 - 05:45-

17h 50m

$1,188Multiple Airlines

Wed, 21 Oct - Sat, 21 Nov

18:15 - 18:50-

27h 35m

18:05 - 17:20-

20h 15m

$1,337Singapore Airlines

Wed, 21 Oct - Sat, 21 Nov

19:00 - 10:10-

18h 10m

08:55 - 08:30-

20h 35m

$1,381Multiple Airlines

Wed, 21 Oct - Sat, 21 Nov

18:15 - 11:05-

19h 50m

12:00 - 17:20-

26h 20m

$1,395Multiple Airlines

Wed, 21 Oct - Sat, 21 Nov

18:15 - 17:20-

26h 05m

12:00 - 17:20-

26h 20m

$1,579Singapore Airlines

Wed, 21 Oct - Sun, 22 Nov

06:00 - 10:10-

31h 10m

08:55 - 08:30-

20h 35m

$1,586Multiple Airlines

Wed, 21 Oct - Sat, 21 Nov

17:40 - 18:15-

51h 35m

14:05 - 11:50-

18h 45m

$1,603Qantas Airways

Tue, 20 Oct - Sun, 22 Nov

18:20 - 18:50-

27h 30m

18:05 - 17:20-

20h 15m

$1,893Singapore Airlines

Fri, 8 Jan - Thu, 21 Jan

13:40 - 19:40-

33h 00m

11:55 - 11:50-

44h 55m

$2,075Cathay Pacific

Mon, 7 Sep - Wed, 9 Sep

13:40 - 19:40-

33h 00m

11:55 - 11:50-

44h 55m

$2,080Cathay Pacific

Mon, 7 Sep - Wed, 9 Sep

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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

21 Oct

CNS18:15Cairns

27h 35m

1 stop

USM18:50Ko Samui

21 Nov

USM18:05Ko Samui

20h 15m

1 stop

CNS17:20Cairns

$1,337

Singapore Airlines

21 Oct

CNS18:15Cairns

26h 05m

1 stop

USM17:20Ko Samui

22 Nov

USM12:00Ko Samui

26h 20m

1 stop

CNS17:20Cairns

$1,579

Singapore Airlines

8 Jan

CNS18:20Cairns

27h 30m

1 stop

USM18:50Ko Samui

21 Jan

USM18:05Ko Samui

20h 15m

1 stop

CNS17:20Cairns

$1,893

Qantas Airways flights from Cairns to Ko Samui

Our best Qantas Airways deals on Cairns to Ko Samui flight tickets

Qantas Airways

20 Oct

CNS17:40Cairns

30h 30m

2 stops

USM21:10Ko Samui

21 Nov

USM14:30Ko Samui

21h 15m

2 stops

CNS14:45Cairns

$1,603

Qantas Airways

7 Sept

CNS06:50Cairns

38h 25m

2 stops

USM18:15Ko Samui

9 Sept

USM16:25Ko Samui

40h 25m

2 stops

CNS11:50Cairns

$2,219

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Wed 21/10

19:00-17:20

2 stops25h 20m

Ko Samui

Sat 21/11

08:55-05:45

2 stops17h 50m

$1,188

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Wed 21/10

18:15-18:50

1 stop27h 35m

Ko Samui

Sat 21/11

18:05-17:20

1 stop20h 15m

$1,337

Fastest return journey

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Wed 21/10

19:00-10:10

2 stops18h 10m

Ko Samui

Sat 21/11

08:55-08:30

3 stops20h 35m

$1,381

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Wed 21/10

18:15-11:05

2 stops19h 50m

Ko Samui

Sat 21/11

12:00-17:20

1 stop26h 20m

$1,395

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Wed 21/10

18:15-17:20

1 stop26h 05m

Ko Samui

Sun 22/11

12:00-17:20

1 stop26h 20m

$1,579

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Wed 21/10

06:00-10:10

3 stops31h 10m

Ko Samui

Sat 21/11

08:55-08:30

3 stops20h 35m

$1,586

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Tue 20/10

17:40-18:15

2 stops51h 35m

Ko Samui

Sun 22/11

14:05-11:50

2 stops18h 45m

$1,603

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Fri 8/1

18:20-18:50

1 stop27h 30m

Ko Samui

Thu 21/1

18:05-17:20

1 stop20h 15m

$1,893

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 7/9

13:40-19:40

2 stops33h 00m

Ko Samui

Wed 9/9

11:55-11:50

2 stops44h 55m

$2,075

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 7/9

13:40-19:40

2 stops33h 00m

Ko Samui

Wed 9/9

11:55-11:50

2 stops44h 55m

$2,080

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

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

Fastest flight time	25h 20m
Direct flights	None

The fastest flight from Cairns to Ko Samui takes 25h 20m

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. 25h 20m 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 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.

Frequently asked questions about flying from Cairns to Ko Samui

How do I get Price Alerts for flights from Cairns to Ko Samui?
Search flight deals from Cairns to Ko Samui. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Cairns to Ko Samui with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

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.