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

As of April 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.

$547 Cheap Flights from Cairns to Ko Samui in 2026

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Cairns to Ko Samui

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:00 - 18:50

CNS

USM

34h 50m

2 stops

19:45 - 22:40

USM

CNS

23h 55m

2 stops

$1,308Multiple Airlines

Sun, 24 May - Wed, 1 Jul

19:00 - 07:45

CNS

USM

15h 45m

2 stops

08:40 - 20:50

USM

CNS

33h 10m

2 stops

$1,334Multiple Airlines

Mon, 20 Jul - Fri, 24 Jul

19:00 - 17:20

CNS

USM

25h 20m

2 stops

08:40 - 20:50

USM

CNS

33h 10m

2 stops

$1,383Multiple Airlines

Sun, 19 Jul - Sat, 25 Jul

12:50 - 07:45

CNS

USM

21h 55m

3 stops

08:40 - 20:50

USM

CNS

33h 10m

2 stops

$1,496Multiple Airlines

Mon, 20 Jul - Fri, 24 Jul

19:00 - 07:45

CNS

USM

15h 45m

2 stops

08:40 - 09:45

USM

CNS

22h 05m

3 stops

$1,501Multiple Airlines

Sun, 19 Jul - Sat, 25 Jul

21:40 - 18:50

CNS

USM

24h 10m

3 stops

08:40 - 05:30

USM

CNS

17h 50m

2 stops

$1,509Multiple Airlines

Sun, 24 May - Wed, 1 Jul

18:15 - 18:50

CNS

USM

27h 35m

1 stop

08:40 - 20:50

USM

CNS

33h 10m

2 stops

$1,565Multiple Airlines

Sun, 19 Jul - Sat, 25 Jul

06:00 - 07:10

CNS

USM

28h 10m

2 stops

08:40 - 05:30

USM

CNS

17h 50m

2 stops

$1,611Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

18:15 - 07:45

CNS

USM

16h 30m

1 stop

08:40 - 20:50

USM

CNS

33h 10m

2 stops

$1,614Multiple Airlines

Mon, 20 Jul - Fri, 24 Jul

19:00 - 10:10

CNS

USM

18h 10m

2 stops

08:40 - 09:45

USM

CNS

22h 05m

3 stops

$1,677Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

Qantas Airways flights from Cairns to Ko Samui

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

Qantas Airways

6 May

CNS13:40Cairns

55h 35m

2 stops

USM18:15Ko Samui

10 May

USM13:30Ko Samui

22h 30m

2 stops

CNS15:00Cairns

$1,625

Qantas Airways

6 May

CNS13:40Cairns

55h 35m

2 stops

USM18:15Ko Samui

10 May

USM13:30Ko Samui

30h 15m

2 stops

CNS22:45Cairns

$1,628

Qantas Airways

10 June

CNS17:40Cairns

51h 35m

2 stops

USM18:15Ko Samui

14 June

USM16:25Ko Samui

20h 50m

2 stops

CNS16:15Cairns

$2,066

Singapore Airlines flights from Cairns to Ko Samui

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

Singapore Airlines

10 June

CNS18:15Cairns

27h 35m

1 stop

USM18:50Ko Samui

14 June

USM08:40Ko Samui

29h 20m

1 stop

CNS17:00Cairns

$1,717

Singapore Airlines

6 May

CNS18:15Cairns

26h 05m

1 stop

USM17:20Ko Samui

10 May

USM08:40Ko Samui

29h 20m

1 stop

CNS17:00Cairns

$1,910

Singapore Airlines

6 May

CNS18:15Cairns

16h 30m

1 stop

USM07:45Ko Samui

10 May

USM08:40Ko Samui

29h 20m

1 stop

CNS17:00Cairns

$1,912

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 24/5

11:00-18:50

2 stops34h 50m

Ko Samui

Wed 1/7

19:45-22:40

2 stops23h 55m

$1,308

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 20/7

19:00-07:45

2 stops15h 45m

Ko Samui

Fri 24/7

08:40-20:50

2 stops33h 10m

$1,334

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 19/7

19:00-17:20

2 stops25h 20m

Ko Samui

Sat 25/7

08:40-20:50

2 stops33h 10m

$1,383

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 20/7

12:50-07:45

3 stops21h 55m

Ko Samui

Fri 24/7

08:40-20:50

2 stops33h 10m

$1,496

Fastest return journey

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 19/7

19:00-07:45

2 stops15h 45m

Ko Samui

Sat 25/7

08:40-09:45

3 stops22h 05m

$1,501

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 24/5

21:40-18:50

3 stops24h 10m

Ko Samui

Wed 1/7

08:40-05:30

2 stops17h 50m

$1,509

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sun 19/7

18:15-18:50

1 stop27h 35m

Ko Samui

Sat 25/7

08:40-20:50

2 stops33h 10m

$1,565

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 8/6

06:00-07:10

2 stops28h 10m

Ko Samui

Mon 15/6

08:40-05:30

2 stops17h 50m

$1,611

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 20/7

18:15-07:45

1 stop16h 30m

Ko Samui

Fri 24/7

08:40-20:50

2 stops33h 10m

$1,614

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 8/6

19:00-10:10

2 stops18h 10m

Ko Samui

Mon 15/6

08:40-09:45

3 stops22h 05m

$1,677

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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	28h 10m
Direct flights	None

The fastest flight from Cairns to Ko Samui takes 28h 10m

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. 28h 10m 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 April 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 $1,315	Free cancellation	Rating 8.2 1,502 reviews		Search Singapore Airlines flights

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 Tao

Ko Pha Ngan

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.