How long is the flight from Cairns to Ko Samui?

For as low as $1,343, Qantas Airways can have you in Ko Samui from Cairns in 49h 15m. The distance from Cairns to Ko Samui is about 5816 km. Find deals

What is the cheapest month to book a flight from Cairns to Ko Samui?

Currently, August is the cheapest month in which you can book a flight from Cairns to Ko Samui (average of $533). Flying from Cairns to Ko Samui in December is currently the most expensive (average of $1,051). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options. Find deals

What is the cheapest day to fly from Cairns to Ko Samui?

Travellers seeking maximum savings on their Cairns to Ko Samui flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm. Find deals

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What is the cheapest time of day to fly from CNS to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cairns to Ko Samui as you normally would.

Can I find deals for flights from Cairns to Ko Samui that include hotel bookings?

Yes. In addition to deals on Cairns to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Cairns to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cairns to Ko Samui.

Can I find deals for business class flights from Cairns to Ko Samui?

Yes. Cheapflights offers flight deals from Cairns to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$608+ Flights from Cairns to Ko Samui

Cheap flight deals from Cairns to Ko Samui

Round-trip from	$1,125
One-way from	$608

30/10-6/11
5 total stops
63h 55m total
Cairns to Ko Samui

Search Deals

30/10
2 total stops
28h 20m total
Cairns to Ko Samui

Search Deals

Find flight deals from Cairns to Ko Samui

Cheapest flights from Cairns to Ko Samui
Explore the most affordable flight options available from Cairns to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Thu 30/1023:55CNS - USM

2 stops35h 05mMultiple Airlines

Thu 6/1108:55USM - CNS

3 stops28h 50mMultiple Airlines

Deal found 14/9$1,125

Thu 30/1014:50CNS - USM

2 stops49h 15mQantas Airways

Thu 6/1113:25USM - CNS

2 stops30h 40mQantas Airways

Deal found 15/9$1,343

Mon 29/1218:35CNS - USM

1 stop25h 35mMultiple Airlines

Mon 12/121:10USM - CNS

2 stops41h 10mMultiple Airlines

Deal found 16/9$2,466

Best flights from Cairns to Ko Samui
Discover carefully curated flight deals from Cairns to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Thu 30/1023:55CNS - USM

2 stops35h 05mMultiple Airlines

Thu 6/1108:55USM - CNS

3 stops28h 50mMultiple Airlines

Deal found 14/9$1,125

Thu 30/1014:50CNS - USM

2 stops49h 15mQantas Airways

Thu 6/1113:25USM - CNS

2 stops30h 40mQantas Airways

Deal found 15/9$1,343

Mon 29/1218:35CNS - USM

1 stop25h 35mMultiple Airlines

Mon 12/121:10USM - CNS

2 stops41h 10mMultiple Airlines

Deal found 16/9$2,466

Last-minute flights from Cairns to Ko Samui
Discover last-minute flight deals from Cairns to Ko Samui. Data last updated 17 September 2025 and is based on user searches.

Thu 30/1023:55CNS - USM

2 stops35h 05mMultiple Airlines

Thu 6/1108:55USM - CNS

3 stops28h 50mMultiple Airlines

Deal found 14/9$1,125

Thu 30/1014:50CNS - USM

2 stops49h 15mQantas Airways

Thu 6/1113:25USM - CNS

2 stops30h 40mQantas Airways

Deal found 15/9$1,343

Fly from

Fly to

Route

Depart

Return

Price

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Thu 30/10

23:55-08:00

2 stops35h 05m

Ko Samui

Thu 6/11

08:55-16:45

3 stops28h 50m

$1,125

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Thu 30/10

14:50-13:05

2 stops49h 15m

Ko Samui

Thu 6/11

13:25-23:05

2 stops30h 40m

$1,343

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Mon 29/12

18:35-17:10

1 stop25h 35m

Ko Samui

Mon 12/1

21:10-17:20

2 stops41h 10m

$2,466

CairnsKo Samui

CNS - USM

CNSUSM

Cairns

Thu 30/10

06:40-08:00

2 stops28h 20m

$608

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Best time to book a flight from Cairns to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Cairns with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Ko Samui

See what other customers who have flown with Singapore Airlines from Cairns to Ko Samui have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.1

Very Good

1,365 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.

Singapore Airlines

8.1

Very Good

1,365 reviews

Singapore Airlines

8.1

Very Good

1,365 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Ketan,Nov 2024

SIN - AMD

Food was not good. It was like few days old.

Related info for your journey

How long is the flight from Cairns to Ko Samui?
For as low as $1,343, Qantas Airways can have you in Ko Samui from Cairns in 49h 15m. The distance from Cairns to Ko Samui is about 5816 km.
Can I find deals for flights from Cairns to Ko Samui that include hotel bookings?
Yes. In addition to deals on Cairns to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cairns to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cairns to Ko Samui.
Can I find deals for business class flights from Cairns to Ko Samui?
Yes. Cheapflights offers flight deals from Cairns to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Cairns to Ko Samui?
Currently, August is the cheapest month in which you can book a flight from Cairns to Ko Samui (average of $533). Flying from Cairns to Ko Samui in December is currently the most expensive (average of $1,051). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Ko Tao

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Top airline flying from Cairns to Ko Samui

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest$1,175	Average$1,409	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

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How does Cheapflights help users find flights from Cairns to Ko Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cairns to Ko Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Cairns to Ko Samui?

Millions of users choose and trust Cheapflights to book the best flight deals from Cairns to Ko Samui for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Cairns to Ko Samui with no change fees?

Certainly. Search results for flights to Ko Samui from Cairns shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cairns to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on Cairns to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Cairns to Ko Samui from $608

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cairns to Ko Samui

Round-trip from

One-way from

Find flight deals from Cairns to Ko Samui

Cheapest flights from Cairns to Ko SamuiExplore the most affordable flight options available from Cairns to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Explore the most affordable flight options available from Cairns to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cairns to Ko Samui that are best for you.

Best time to book a flight from Cairns to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Cairns with our price prediction graph.

Reviews of airlines servicing Ko Samui

See what other customers who have flown with Singapore Airlines from Cairns to Ko Samui have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Cairns to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Cairns to Ko Samui?

Can I find deals for flights from Cairns to Ko Samui that include hotel bookings?

How can I find direct flights from Cairns to Ko Samui?

Can I find deals for business class flights from Cairns to Ko Samui?

What is the cheapest month to book a flight from Cairns to Ko Samui?

Travelling to a place near Ko Samui?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cairns to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Cairns to Ko Samui

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cairns to Ko Samui?

Why should you use Cheapflights to find cheap flight tickets from Cairns to Ko Samui?

Can Cheapflights find flights from Cairns to Ko Samui with no change fees?

Can Cheapflights notify me if prices for flights from Cairns to Ko Samui become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Cairns to Ko Samui
Explore the most affordable flight options available from Cairns to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.