USM

$1,787 Find Cheap Flights to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
$1,782
Typical prices: $1,904-$2,675
Multiple Airlines
Wed 28/2Thu 29/3
AKL - USM • 2 stops
Cheapest one-way flight
$765
Typical prices: $1,110-$1,910
Multiple Airlines
Fri 16/2
AKL - USM • 3 stops
Top airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
Top routes
Cheapest • 9% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Ko Samui

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

Recent return flight deals to Ko Samui

Sun, 28 Feb - Mon, 29 Mar
Multiple Airlines Logo
10:00 - 07:45Auckland  Auckland Intl-Ko Samui Ko Samui
27h 45m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi
Multiple Airlines Logo
14:35 - 16:40Ko Samui  Ko Samui-Auckland Auckland Intl
20h 05m2 stops Bangkok Suvarnabhumi Guangzhou Baiyun
$1,782Multiple Airlines
2 days ago
Thu, 26 Nov - Thu, 3 Dec
Multiple Airlines Logo
10:00 - 07:35Auckland  Auckland Intl-Ko Samui Ko Samui
27h 35m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi
Multiple Airlines Logo
07:15 - 16:15Ko Samui  Ko Samui-Auckland Auckland Intl
27h 00m2 stops Bangkok Suvarnabhumi Guangzhou Baiyun
$1,875Multiple Airlines
2 days ago
Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
10:00 - 09:20Auckland  Auckland Intl-Ko Samui Ko Samui
29h 20m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 16:15Ko Samui  Ko Samui-Auckland Auckland Intl
27h 15m2 stops Bangkok Suvarnabhumi Guangzhou Baiyun
$1,880Multiple Airlines
3+ days ago
Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
09:40 - 07:35Auckland  Auckland Intl-Ko Samui Ko Samui
27h 55m2 stops Melbourne Bangkok Suvarnabhumi
Multiple Airlines Logo
12:00 - 18:25Ko Samui  Ko Samui-Auckland Auckland Intl
24h 25m3 stops Singapore Changi Denpasar Bali Ngurah Rai Melbourne
$1,921Multiple Airlines
3+ days ago
Wed, 28 Oct - Sun, 1 Nov
Qantas Airways Logo
13:15 - 21:05Auckland  Auckland Intl-Ko Samui Ko Samui
37h 50m2 stops Sydney Kingsford Smith Singapore Changi
Qantas Airways Logo
16:25 - 00:05Ko Samui  Ko Samui-Auckland Auckland Intl
25h 40m2 stops Singapore Changi Melbourne
$1,977Qantas Airways
1 day ago
Wed, 28 Oct - Sun, 1 Nov
Qantas Airways Logo
13:15 - 21:05Auckland  Auckland Intl-Ko Samui Ko Samui
37h 50m2 stops Sydney Kingsford Smith Singapore Changi
Qantas Airways Logo
16:25 - 00:05Ko Samui  Ko Samui-Auckland Auckland Intl
25h 40m2 stops Singapore Changi Melbourne
$1,978Qantas Airways
21 hours ago
Wed, 28 Oct - Sun, 1 Nov
Qantas Airways Logo
13:25 - 18:15Auckland  Auckland Intl-Ko Samui Ko Samui
34h 50m2 stops Melbourne Singapore Changi
Qantas Airways Logo
16:25 - 00:05Ko Samui  Ko Samui-Auckland Auckland Intl
25h 40m2 stops Singapore Changi Melbourne
$1,982Qantas Airways
3+ days ago
Wed, 28 Oct - Sun, 1 Nov
Singapore Airlines Logo
15:15 - 18:55Auckland  Auckland Intl-Ko Samui Ko Samui
33h 40m1 stop Singapore Changi
Singapore Airlines Logo
19:50 - 15:25Ko Samui  Ko Samui-Auckland Auckland Intl
13h 35m1 stop Singapore Changi
$2,337Singapore Airlines
2 days ago
Wed, 28 Oct - Sun, 1 Nov
Singapore Airlines Logo
15:15 - 18:55Auckland  Auckland Intl-Ko Samui Ko Samui
33h 40m1 stop Singapore Changi
Singapore Airlines Logo
19:50 - 15:25Ko Samui  Ko Samui-Auckland Auckland Intl
13h 35m1 stop Singapore Changi
$2,406Singapore Airlines
3+ days ago
Wed, 28 Oct - Sun, 1 Nov
Singapore Airlines Logo
15:15 - 18:55Auckland  Auckland Intl-Ko Samui Ko Samui
33h 40m1 stop Singapore Changi
Singapore Airlines Logo
19:50 - 15:25Ko Samui  Ko Samui-Auckland Auckland Intl
13h 35m1 stop Singapore Changi
$2,408Singapore Airlines
3+ days ago
Booking Insights

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

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

What is the cheapest flight to Ko Samui?

Auckland to Ko Samui is the cheapest route at $1,782 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Ko Samui?

On average, a return flight from New Zealand to Ko Samui costs $2,220, based on KAYAK data over the past 12 months. Return fares from Queenstown average $1,965, while Christchurch runs a bit higher at $2,226.

What is the cheapest day to fly to Ko Samui?

Saturday is the cheapest day to fly to Ko Samui at $2,039 return on average over the past 12 months on KAYAK. Sunday is the most expensive at $2,802.

What is the cheapest month to fly to Ko Samui?

•February is the cheapest month to fly to Ko Samui with an average price of $1,679 return.
•December ($3,036) and June ($2,761) are the most expensive.
•Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Ko Samui?

Morning flights to Ko Samui are the cheapest at $2,091 return on average. Afternoon flights are the most expensive at $2,908.

Key details for flights to Ko Samui

Low season

March

Cheapest flight

$765
Beat the crowds with an average 46% drop in traveller numbers.
The most popular month to fly with an average 50% increase in traveller numbers.
One-way flight from Auckland to Ko Samui

When to book flights to Ko Samui

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

Your questions about flights to Ko Samui, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to Ko Samui is a good deal?

    A good deal on a flight to Ko Samui is around $1,904 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • What is the difference between the most popular and the most frequent airline at Ko Samui?

    Cathay Pacific operates the most flights from New Zealand to Ko Samui at 0 per week, while Singapore Airlines is the airline most often selected by KAYAK users searching for flights from New Zealand to Ko Samui. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

Your guide to booking Ko Samui flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Ko Samui, a good return fare is around $1,904. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Ko Samui in February. Return fares historically average $1,679, making February the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to $817 on a return flight. Morning flights to Ko Samui average $2,091 compared to $2,908 for midday flights.
  • Once you arrive in Ko Samui, a few great places to start are Bophut Beach, Lamai Beach, and Choeng Mon Beach. These are popular with first-time visitors and can give you a good feel for the area.

Reviews of the top airlines flying to Ko Samui

 
Need help choosing which airline to fly with to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1624 reviews
8.1Entertainment
8.0Comfort
8.6Crew
7.8Food
8.3Boarding
Airline reviews

It was fine. Nothing special but nothing went wrong so all good.

8.0 ExcellentWendy, Mar 2026
Read more Singapore Airlines reviews

It was fine. Nothing special but nothing went wrong so all good.

I felt that the whole experience went very smoothly. The aircraft was extremely clean and tidy on boarding. The cabin crew were beautifully turned out very, very efficient and were a credit to Singapore Airlines who are now my favourite carrier.

No frills airline with minimal leg room and no entertainment

It was very good experience on board to Sydney with SQ.

Great to have actual hot tastey meal on a flight. Well done

Every thing was fine. Some ild classical Hindi movies should be add

Airport lounge for business class is too crowded and not comfortable. Poor foods and facilities. Boarding was delayed. A lot of coughing people in the flight even in the business class, which indicated poor screening and health risks.

Seamless fussy free flight. Great service as expected of SIA.

There’s a reason SIN is on of the BEST airline in the world.

I was very impressed with this airline. The plane was clean. The attendance were nice and it was a great comfortable experience. The zipper on my suitcase broke after I checked it, and they wrapped it all Thailand plastic wrap to prevent it from coming apart during the flight. When I got to Los Angeles, all of my items were safe and still in the bag. That is above and beyond!

Poor. Flight was delayed by 50 mins. Poor quality aircraft. Aged, few parts broken. Bad plane.

I want a refund. I had to switch flights and buy another airline ticket because this one was delayed.

It seems that qantas are trying hard to regain their status as Australia's premier airline. I only flew economy but happy with the service entertainment, food, configuration everything.

We had a medical emergency, needing to get to an emergency room upon landing at LAX. I let the back flight attendants know the situation. One, David, contacted the pilot, who made arrangements for EMT's to be there when we got off the plane. They went above and beyond for us. We didn't have to go through customs, as a customs person came to us and checked us right at the exit of the jet way. Another wonderful woman, a United employee at LAX, perhaps a customer service liaison, took care of our luggage situation, as we weren't going to make our connection to Bozeman. When we came back to LAX to see when we could get a flight to Bozeman, the personnel are very accommodating and booked us on the next flight out, and assigned good seats. It was a horrible flight, physically, from Sydney to LAX, , but the professionalism of all involved was excellent! We are very grateful fir the way they all stepped in and helped during a very unpleasant medical situation. Thank you!!

Very good overall. However, your choices of free movies was limited and there was no music Channel???

We booked with Qantas instead of Delta and we instead flew on American Airlines. American is not our favorite to go on. No leg room and the width of seats are a joke. Your are packed like sardines on American flights.

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

One of the oldest most uncomfortable "lay down" seats I've ever experienced. Old plane and old seats that don't lay flat. The seat back does not even recline - at all. Instead the legrest awkwardly extends to fill the gap between a small cubby into which you must insert your feet/legs. I am 5' 11" and could not lay straight but had to tuck my knees. Ticket was also very expensive. Would not recommend flying business/first on Finair from Melbourne to Bangkok and will not do so again myself.

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

More options for your flight to Ko Samui