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 August 2025, 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.

$580 Cheap Flights from Cairns to Ko Samui (CNS-USM) in 2025

1 adult

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Find the cheapest flights from Cairns to Ko Samui (CNS-USM)

Round-trip

One-way

Cheap return flights

19:25 - 07:50CNS-USM

39h 25m3 stops

19:25 - 08:45USM-CNS

34h 20m3 stops

$1,344

Find Deal

Tue, 7 Oct - Tue, 14 Oct

06:45 - 07:50CNS-USM

28h 05m2 stops

19:25 - 08:45USM-CNS

34h 20m3 stops

$1,433

Find Deal

Tue, 7 Oct - Tue, 14 Oct

06:45 - 07:50CNS-USM

28h 05m2 stops

17:40 - 23:05USM-CNS

26h 25m2 stops

$1,621

Find Deal

Tue, 7 Oct - Tue, 14 Oct

20:30 - 07:50CNS-USM

38h 20m2 stops

19:25 - 17:00USM-CNS

18h 35m1 stop

$1,898

Find Deal

Tue, 7 Oct - Tue, 14 Oct

Fly from

Fly to

Route

Depart

Return

Price

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Tue 7/10

19:25-07:50

3 stops39h 25m

Ko Samui

Tue 14/10

19:25-08:45

3 stops34h 20m

$1,344

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Tue 7/10

06:45-07:50

2 stops28h 05m

Ko Samui

Tue 14/10

19:25-08:45

3 stops34h 20m

$1,433

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Tue 7/10

06:45-07:50

2 stops28h 05m

Ko Samui

Tue 14/10

17:40-23:05

2 stops26h 25m

$1,621

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Tue 7/10

20:30-07:50

2 stops38h 20m

Ko Samui

Tue 14/10

19:25-17:00

1 stop18h 35m

$1,898

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 15/9

19:00-20:25

3 stops52h 25m

$580

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 15/9

06:45-20:25

2 stops40h 40m

$640

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 15/9

18:15-07:50

1 stop16h 35m

$1,116

Flights are sorted by cheapest return flights first.

Sorted 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

Direct flights	None

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

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How far is Cairns to Ko Samui by plane?
Cairns and Ko Samui are 5819.1 km apart from one another. 28h 05m 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 August 2025, 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 $1,130	Free cancellation	Rating 8.1 1,352 reviews		Search Singapore Airlines flights

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.