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$793+ 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
29 May — 5 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 29 April 2026.

Sun 24/513:40
AKL
-
USM
2 stops34h 10m
Multiple Airlines
Sun 31/517:55
USM
-
AKL
3 stops30h 35m
Multiple Airlines
Deal found 25/4$1,697
Sun 26/712:40
AKL
-
USM
2 stops33h 40m
Multiple Airlines
Fri 7/814:30
USM
-
AKL
3 stops34h 00m
Multiple Airlines
Deal found 28/4$1,700
Thu 11/606:15
AKL
-
USM
3 stops39h 40m
Multiple Airlines
Thu 18/612:30
USM
-
AKL
3 stops36h 00m
Multiple Airlines
Deal found 27/4$1,705
Fri 19/615:40
AKL
-
USM
2 stops30h 40m
Multiple Airlines
Sat 27/615:25
USM
-
AKL
3 stops33h 05m
Multiple Airlines
Deal found 25/4$1,748

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 29 April 2026.

Return from

$1,697

One-way from

$950

Popular in

January

Cheapest in

October

Average price

$2,664
24/5-31/5
  • 24/5-31/5
  • 5 total stops
  • 64h 45m total
  • Auckland to Ko Samui
Search Deals
22/6
  • 22/6
  • 3 total stops
  • 51h 10m total
  • Auckland to Ko Samui
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($349 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($50 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 29 April 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

Sun 26/7

12:40-17:20

2 stops33h 40m

Ko Samui

Fri 7/8

14:30-05:30

3 stops34h 00m

$1,700

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Thu 11/6

06:20-07:10

2 stops29h 50m

Ko Samui

Thu 18/6

06:00-15:45

2 stops28h 45m

$1,717

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Tue 9/6

06:45-20:50

2 stops19h 05m

Ko Samui

Thu 11/6

14:35-00:30

2 stops28h 55m

$1,945

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Thu 9/7

06:15-07:45

2 stops30h 30m

Ko Samui

Sun 19/7

10:05-00:30

3 stops33h 25m

$2,292
Fastest return journey

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Thu 18/6

06:00-20:50

2 stops19h 50m

Ko Samui

Thu 25/6

13:30-19:10

2 stops24h 40m

$2,444

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Tue 9/6

19:30-16:30

3 stops26h 00m

Ko Samui

Thu 11/6

13:50-18:00

3 stops23h 10m

$2,497
Cheapest one-way

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Tue 15/9

15:40-20:25

3 stops33h 45m

$793

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Mon 22/6

20:40-18:50

3 stops51h 10m

$950

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Tue 23/6

12:40-18:50

3 stops35h 10m

$967

AucklandKo Samui

AKL - USM

AKLUSM

Auckland Intl

Wed 24/6

06:15-18:00

3 stops40h 45m

$972

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 12 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, Singapore Airlines and British Airways.

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 29 April 2026.
Get a feel of what it's like to fly with Singapore Airlines,Qantas Airways, andBritish 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
1,505 reviews
Check prices

Overall

8.2

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

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
1,505 reviews
Singapore Airlines
8.2
Very Good
1,505 reviews
Check prices

Overall

8.2

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

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
1,028 reviews
Singapore Airlines
8.2
Very Good
1,505 reviews
Check prices

Overall

8.2

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

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.
British Airways
6.7
Okay
7,937 reviews
Singapore Airlines
8.2
Very Good
1,505 reviews
Check prices

Overall

8.2

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.6

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 $193, while return flights cost around $556.

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

    For those looking to save time traveling to Ko Samui, Wellington offers the quickest one-way flight (20 hours 45 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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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?

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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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