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.

$1,073 Cheap Flights from Cairns to Ko Samui in 2026

1 adult

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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 - 07:45

CNS

USM

23h 45m

2 stops

19:45 - 05:30

USM

CNS

30h 45m

2 stops

$1,073Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

11:00 - 17:20

CNS

USM

33h 20m

2 stops

08:40 - 09:45

USM

CNS

22h 05m

3 stops

$1,235Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

06:00 - 13:10

CNS

USM

34h 10m

2 stops

08:20 - 11:50

USM

CNS

24h 30m

2 stops

$1,442Qantas Airways

Mon, 11 May - Thu, 14 May

18:15 - 17:20

CNS

USM

26h 05m

1 stop

19:45 - 17:00

USM

CNS

18h 15m

1 stop

$1,444Singapore Airlines

Mon, 11 May - Thu, 14 May

21:00 - 07:45

CNS

USM

37h 45m

2 stops

19:45 - 17:00

USM

CNS

18h 15m

1 stop

$1,855Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

18:20 - 21:35

CNS

USM

30h 15m

3 stops

15:25 - 15:00

USM

CNS

20h 35m

3 stops

$2,004Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

Qantas Airways flights from Cairns to Ko Samui

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

Qantas Airways

11 May

CNS06:00Cairns

34h 10m

2 stops

USM13:10Ko Samui

14 May

USM08:20Ko Samui

24h 30m

2 stops

CNS11:50Cairns

$1,442

Qantas Airways

8 Mar

CNS12:35Cairns

56h 40m

2 stops

USM18:15Ko Samui

12 Mar

USM08:15Ko Samui

23h 30m

2 stops

CNS10:45Cairns

$1,512

Qantas Airways

8 Mar

CNS12:35Cairns

56h 40m

2 stops

USM18:15Ko Samui

12 Mar

USM13:25Ko Samui

42h 20m

2 stops

CNS10:45Cairns

$1,621

Singapore Airlines flights from Cairns to Ko Samui

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

Singapore Airlines

11 May

CNS18:15Cairns

26h 05m

1 stop

USM17:20Ko Samui

14 May

USM19:45Ko Samui

18h 15m

1 stop

CNS17:00Cairns

$1,444

Singapore Airlines

8 Mar

CNS18:35Cairns

16h 25m

1 stop

USM08:00Ko Samui

12 Mar

USM19:45Ko Samui

18h 35m

1 stop

CNS17:20Cairns

$1,502

Singapore Airlines

8 Mar

CNS18:35Cairns

16h 25m

1 stop

USM08:00Ko Samui

12 Mar

USM19:45Ko Samui

18h 35m

1 stop

CNS17:20Cairns

$1,508

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sat 18/4

11:00-07:45

2 stops23h 45m

Ko Samui

Sat 25/4

19:45-05:30

2 stops30h 45m

$1,073

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sat 18/4

11:00-17:20

2 stops33h 20m

Ko Samui

Sat 25/4

08:40-09:45

3 stops22h 05m

$1,235

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 11/5

06:00-13:10

2 stops34h 10m

Ko Samui

Thu 14/5

08:20-11:50

2 stops24h 30m

$1,442

Fastest return journey

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 11/5

18:15-17:20

1 stop26h 05m

Ko Samui

Thu 14/5

19:45-17:00

1 stop18h 15m

$1,444

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sat 18/4

21:00-07:45

2 stops37h 45m

Ko Samui

Sat 25/4

19:45-17:00

1 stop18h 15m

$1,855

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Sat 18/4

18:20-21:35

3 stops30h 15m

Ko Samui

Sat 25/4

15:25-15:00

3 stops20h 35m

$2,004

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

Fastest flight time	16h 25m
Direct flights	None

The fastest flight from Cairns to Ko Samui takes 16h 25m

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

Search flight deals

How far is Cairns to Ko Samui by plane?
Cairns and Ko Samui are 5819.1 km apart from one another. 16h 25m 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.

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.