Which airports can I use when flying from Cairns to Ko Samui?

Flights from Cairns to Ko Samui usually depart from Cairns (CNS) and arrive at Ko Samui (USM).

Which cabin classes can I book on flights from Cairns to Ko Samui?

Only Economy class is available on flights from Cairns to Ko Samui.

Which airports do connecting flights from Cairns to Ko Samui pass through?

Most connecting flights from Cairns to Ko Samui pass through Singapore Changi (SIN), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Cairns to Ko Samui?

Yes. Flexible dates can save you up to 33% on flights from Cairns to Ko Samui. Tuesday is the cheapest departure day at $1,272 return on average, while Friday is the most expensive at $1,894, a difference of $622. KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Ko Samui?

Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

Do I need a passport to fly from Cairns to Ko Samui?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Cairns to Ko Samui changed much recently?

Yes. Based on fares seen in the past 5 days, return prices on this route varied from about $1,575 to $2,146. That means the highest observed fare was about 36% higher than the lowest one.

How are flight prices from Cairns to Ko Samui looking right now?

One-way fares from Cairns to Ko Samui are currently higher than usual. Average one-way flight prices are about $1,676, which is 135% above the typical average for this route.

What is the time difference between Cairns and Ko Samui?

Ko Samui is 3 hours behind Cairns (Indochina Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

How much should I expect to pay for a Cairns to Ko Samui flight?

Return flights from Cairns to Ko Samui range from $1,403 to $1,676, with an average of $1,594 over the past 12 months. Anything below $1,403 counts as a good deal.

How much is a return flight from Cairns to Ko Samui?

Return flights from Cairns to Ko Samui typically range from $1,403 to $1,676. The lowest price found in the past 5 days was $1,575 on Singapore Airlines.

What's the cheapest day of the week to fly from Cairns to Ko Samui?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Cairns to Ko Samui. It's 21% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.

Which airline is the cheapest to fly from Cairns to Ko Samui?

Singapore Airlines ($1,575) and Cathay Pacific ($2,072) are the cheapest airlines to fly return from Cairns to Ko Samui according to KAYAK data over the last 5 days.

What is the cheapest stopover airport when flying from Cairns to Ko Samui?

Flights via Singapore Changi (SIN) offer the most affordable fares, with an average return price of $1,634. Based on KAYAK data over the past 3 months.

When flying from Cairns to Ko Samui, which airport offers the shortest stopover?

Singapore Changi (SIN) had the shortest average connection time for Cairns to Ko Samui stopovers at 15h 22m over the past 3 months.

$549 CHEAP FLIGHTS from Cairns to Ko Samui (CNS - USM)

Save 26% or more on flights. Compare deals from all over the web.

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Cheapest return flight

$1,575

Typical prices: $1,403-$1,676

Singapore Airlines

Sat 24/2Tue 27/2

CNS - USM • 1 stop

Cheapest one-way flight

$549

Typical prices: $573-$1,077

Multiple Airlines

Thu 25/1

CNS - USM • 3 stops

When to travel

June

Cheapest • 20% price drop

November

Most popular

Good to know

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We hope you enjoy your trip to Ko Samui!

Flight Deals

Cheap Flights from Cairns to Ko Samui (CNS-USM)

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Recent return flight deals from Cairns to Ko Samui

Wed, 24 Feb - Sat, 27 Feb

18:20 - 10:55CNS Cairns-USM Ko Samui

19h 35m1 stop Singapore Changi

08:55 - 17:15USM Ko Samui-CNS Cairns

29h 20m1 stop Singapore Changi

$1,575Singapore Airlines

Wed, 24 Feb - Sat, 27 Feb

18:20 - 10:55CNS Cairns-USM Ko Samui

19h 35m1 stop Singapore Changi

08:55 - 17:15USM Ko Samui-CNS Cairns

29h 20m1 stop Singapore Changi

$1,578Singapore Airlines

Sat, 27 Mar - Mon, 12 Apr

06:40 - 07:10CNS Cairns-USM Ko Samui

27h 30m3 stops Sydney Kingsford Smith Singapore Changi Bangkok Suvarnabhumi

17:50 - 19:15USM Ko Samui-CNS Cairns

22h 25m2 stops Bangkok Suvarnabhumi Melbourne

$1,624Multiple Airlines

Sat, 27 Mar - Mon, 12 Apr

06:40 - 07:10CNS Cairns-USM Ko Samui

27h 30m3 stops Sydney Kingsford Smith Singapore Changi Bangkok Suvarnabhumi

06:00 - 05:35USM Ko Samui-CNS Cairns

20h 35m3 stops Bangkok Suvarnabhumi Singapore Changi Denpasar Bali Ngurah Rai

$1,641Multiple Airlines

Sat, 27 Mar - Mon, 12 Apr

09:05 - 10:10CNS Cairns-USM Ko Samui

28h 05m2 stops Sydney Kingsford Smith Singapore Changi

08:00 - 05:35USM Ko Samui-CNS Cairns

18h 35m2 stops Phuket City Denpasar Bali Ngurah Rai

$1,692Multiple Airlines

Sat, 27 Mar - Mon, 12 Apr

18:20 - 18:50CNS Cairns-USM Ko Samui

27h 30m1 stop Singapore Changi

13:30 - 17:05USM Ko Samui-CNS Cairns

24h 35m1 stop Singapore Changi

$1,820Singapore Airlines

Sat, 27 Mar - Mon, 12 Apr

18:20 - 07:45CNS Cairns-USM Ko Samui

16h 25m1 stop Singapore Changi

15:50 - 17:05USM Ko Samui-CNS Cairns

22h 15m2 stops Bangkok Suvarnabhumi Singapore Changi

$1,891Multiple Airlines

Wed, 24 Feb - Sat, 27 Feb

11:40 - 19:35CNS Cairns-USM Ko Samui

34h 55m2 stops Melbourne Hong Kong Intl

11:40 - 10:55USM Ko Samui-CNS Cairns

44h 15m2 stops Hong Kong Intl Melbourne

$2,072Cathay Pacific

Wed, 24 Feb - Sat, 27 Feb

11:40 - 19:35CNS Cairns-USM Ko Samui

58h 55m2 stops Melbourne Hong Kong Intl

11:40 - 10:55USM Ko Samui-CNS Cairns

44h 15m2 stops Hong Kong Intl Melbourne

$2,076Cathay Pacific

Wed, 24 Feb - Sat, 27 Feb

11:40 - 19:35CNS Cairns-USM Ko Samui

34h 55m2 stops Melbourne Hong Kong Intl

11:40 - 10:55USM Ko Samui-CNS Cairns

44h 15m2 stops Hong Kong Intl Melbourne

$2,144Cathay Pacific

Booking Insights

Price, demand, and travel trends for Cairns to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Stopovers

How much is a return flight from Cairns to Ko Samui? This analysis is based on the cheapest return price found on KAYAK in the last 12 months by searching for a flight from Cairns to Ko Samui departing in February.
What's the cheapest day of the week to fly from Cairns to Ko Samui?: Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Cairns to Ko Samui. It's 21% cheaper than the average day, while Friday is the most expensive, with prices 18% higher.

Find deals

Low season	August
High season	November
Cheapest flight	$549

Beat the crowds with an average 89% drop in travellers.

The most popular month to fly with an average 27% increase in travellers.

One-way flight from Cairns to Ko Samui

When to book flights from Cairns to Ko Samui

Are your dates flexible? Find out the best times to travel from Cairns to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which cabin classes can I book on flights from Cairns to Ko Samui?
Only Economy class is available on flights from Cairns to Ko Samui.
Do I need a passport to fly from Cairns to Ko Samui?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Cairns to Ko Samui flight?
Return flights from Cairns to Ko Samui range from $1,403 to $1,676, with an average of $1,594 over the past 12 months. Anything below $1,403 counts as a good deal.
Have flight prices from Cairns to Ko Samui changed much recently?
Yes. Based on fares seen in the past 5 days, return prices on this route varied from about $1,575 to $2,146. That means the highest observed fare was about 36% higher than the lowest one.
How are flight prices from Cairns to Ko Samui looking right now?
One-way fares from Cairns to Ko Samui are currently higher than usual. Average one-way flight prices are about $1,676, which is 135% above the typical average for this route.
Which airports can I use when flying from Cairns to Ko Samui?
Flights from Cairns to Ko Samui usually depart from Cairns (CNS) and arrive at Ko Samui (USM).
Which airports do connecting flights from Cairns to Ko Samui pass through?
Most connecting flights from Cairns to Ko Samui pass through Singapore Changi (SIN), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Cairns to Ko Samui?
Yes. Flexible dates can save you up to 33% on flights from Cairns to Ko Samui. Tuesday is the cheapest departure day at $1,272 return on average, while Friday is the most expensive at $1,894, a difference of $622.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Cairns and Ko Samui?
Ko Samui is 3 hours behind Cairns (Indochina Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average $1,272, about $622 less than Friday fares (33% savings) based on the last 12 months.
If you can choose when to travel, plan your Cairns to Ko Samui trip for June. Fares historically average $1,272 return in that month – typically $430 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

• Ozo Chaweng Samui - Sha Extra Plus
• Melia Koh Samui
• Amari Koh Samui

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CNS - USM

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Everything you should know

Cheap Flights from Cairns to Ko Samui (CNS-USM)

Recent return flight deals from Cairns to Ko Samui

Recent one-way flight deals from Cairns to Ko Samui

Price, demand, and travel trends for Cairns to Ko Samui flights

How much is a return flight from Cairns to Ko Samui?

What's the cheapest day of the week to fly from Cairns to Ko Samui?

Which airline is the cheapest to fly from Cairns to Ko Samui?

What is the cheapest stopover airport when flying from Cairns to Ko Samui?

When flying from Cairns to Ko Samui, which airport offers the shortest stopover?

Key details for Cairns to Ko Samui flights

Low season

High season

Cheapest flight

When to book flights from Cairns to Ko Samui

Your Cairns to Ko Samui flight questions, answered

Your guide to booking Cairns to Ko Samui flights

More options for your flight from Cairns to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Information on your arrival and departure airports

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Flights from domestic origins to Ko Samui

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