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$778+ Cheap flights to Ko Samui

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
19 Jun — 26 Jun1
1 adult
1 adult, Economy, 0 bags

Flights to Ko Samui in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Ko Samui
Explore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 20 May 2026.

Wed 3/606:15
AKL
-
USM
3 stops43h 10m
Multiple Airlines
Sun 14/608:00
USM
-
AKL
3 stops40h 30m
Multiple Airlines
Deal found 19/5$1,699
Tue 1/912:40
AKL
-
USM
3 stops33h 15m
Multiple Airlines
Wed 30/908:00
USM
-
AKL
3 stops34h 30m
Multiple Airlines
Deal found 16/5$1,735
Fri 17/715:15
AKL
-
USM
2 stops32h 35m
Multiple Airlines
Sun 26/708:45
USM
-
AKL
2 stops26h 25m
Multiple Airlines
Deal found 17/5$1,908
Thu 29/1006:00
AKL
-
USM
2 stops20h 15m
Qantas Airways
Mon 2/1113:45
USM
-
AKL
2 stops22h 30m
Qantas Airways
Deal found 17/5$1,935
Sat 15/806:45
AKL
-
USM
3 stops36h 55m
Multiple Airlines
Tue 15/915:50
USM
-
AKL
2 stops19h 20m
Multiple Airlines
Deal found 16/5$1,938

Find flight deals to Ko Samui

Find the latest flights to Ko Samui in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 134,765 searches and data was last updated on 20 May 2026.

Return from

$1,699

One-way from

$910

Popular in

January

Cheapest in

August

Average price

$2,115
3/6-14/6
  • 3/6-14/6
  • 6 total stops
  • 83h 40m total
  • Auckland to Ko Samui
Search Deals
6/7
  • 6/7
  • 3 total stops
  • 30h 40m total
  • Auckland to Ko Samui
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($385 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($53 potential savings vs. average return price).
Search Deals
Average for return flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 134,765 searches and data was last updated on 20 May 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Wed 3/6

17:25-20:50

3 stops32h 25m

Ko Samui

Sun 14/6

12:30-05:30

3 stops36h 00m

$1,740

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Fri 17/7

15:15-18:50

2 stops32h 35m

Ko Samui

Sun 26/7

08:45-16:10

2 stops26h 25m

$1,908
Fastest return journey

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Thu 29/10

06:00-20:15

2 stops20h 15m

Ko Samui

Mon 2/11

13:45-18:15

2 stops22h 30m

$1,935

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Sat 15/8

06:45-14:40

3 stops36h 55m

Ko Samui

Tue 15/9

15:50-16:10

2 stops19h 20m

$1,938

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Thu 1/10

07:05-21:10

2 stops20h 05m

Ko Samui

Tue 13/10

16:25-00:30

2 stops26h 05m

$2,147

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Thu 18/6

21:00-21:35

3 stops29h 35m

Ko Samui

Fri 26/6

06:00-16:05

3 stops29h 05m

$2,199

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Sun 27/9

09:20-18:15

2 stops38h 55m

Ko Samui

Tue 13/10

16:25-00:30

2 stops26h 05m

$2,231

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Mon 28/9

07:10-18:15

2 stops41h 05m

Ko Samui

Tue 13/10

16:25-00:30

2 stops26h 05m

$2,231
Cheapest one-way

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Tue 15/9

07:00-11:55

3 stops33h 55m

$778

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Wed 8/7

06:10-07:10

2 stops30h 00m

$970

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui 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.

Cheapflights Insights

Everything you need to know about your flight to Ko Samui

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from Auckland to Ko Samui are Qantas Airways and Singapore Airlines.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 20 May 2026.
Get a feel of what it's like to fly with Singapore Airlines and Qantas Airways to Thailand by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,521 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Singapore Airlines
8.2
Very Good
1,521 reviews
Singapore Airlines
8.2
Very Good
1,521 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Qantas Airways
7.5
Good
1,038 reviews
Singapore Airlines
8.2
Very Good
1,521 reviews
Check prices

Food

7.8

Comfort

8.0

Boarding

8.3

Crew

8.6

Overall

8.2

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

FAQs about flying to Ko Samui

  • What airport do you fly into for flights to Ko Samui?

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre.

  • Can I find cheaper flights to Ko Samui if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ko Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ko Samui?

    Based on reviews from Cheapflights users, Qantas Airways is rated the highest out of the airlines that fly to Ko Samui.

  • What is the cheapest airport to fly to in Ko Samui?

    Ko Samui is currently the cheapest airport to fly to in Ko Samui. One-way flights to Ko Samui typically cost $194, while return flights cost around $697.

  • Where does the fastest flight to Ko Samui depart from?

    For those looking to save time traveling to Ko Samui, Auckland Intl offers the quickest one-way flight (19 hours 50 minutes).

  • Does Ko Samui have rental cars?

    Yes. Those touching down at Ko Samui can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ko Samui?

    Yes. Ko Samui has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui (0.0 km away from Ko Samui).

See more FAQs

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

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Fly with Cheapflights

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How does Cheapflights help users find flights to Ko Samui?

Deals for Ko Samui flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Ko Samui by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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