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R15 701+ Cheap flights to Ko Samui

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
Dec 16 — Dec 231
1 adult
1 adult, Economy, 0 bags

Find flight deals to Ko Samui

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 16 November 2025.

Thu 4/1210:25JNB - USM
2 stops24h 10mMultiple Airlines
Wed 17/1217:40USM - JNB
2 stops27h 55mMultiple Airlines
Deal found 14/11R19 541
Mon 8/129:50JNB - USM
2 stops26h 40mEtihad Airways
Sun 14/127:15USM - JNB
2 stops30h 05mEtihad Airways
Deal found 15/11R21 743
Mon 8/1211:20JNB - USM
1 stop27h 15mCathay Pacific
Sun 14/1211:40USM - JNB
1 stop24h 45mCathay Pacific
Deal found 15/11R22 664
Thu 4/1211:00JNB - USM
1 stop27h 35mCathay Pacific
Wed 17/1211:40USM - JNB
1 stop24h 45mCathay Pacific
Deal found 14/11R22 767
Mon 8/1222:20JNB - USM
2 stops29h 20mEmirates
Sun 14/128:15USM - JNB
2 stops37h 20mEmirates
Deal found 14/11R23 108

Flights to Ko Samui in 2025

Find the latest flights to Ko Samui in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 594 507 searches and data was last updated on 16 November 2025.

Return from

R15 565

One-way from

R23 466

Popular in

December

Cheapest in

September

Average price

R14 814
Emirates
  • Emirates
  • 3/5-17/5
  • 4 total stops
  • 82h 35m total
  • Johannesburg to Ko Samui
Search Deals
4/1
  • 4/1
  • 3 total stops
  • 37h 10m total
  • Johannesburg to Ko Samui
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (R1 236 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (R319 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
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 594 507 searches and data was last updated on 16 November 2025.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Johannesburg

Route

Depart

Return

Price

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 5/2

11:00-19:35

1 stop27h 35m

Ko Samui

Sun 15/2

14:30-7:25

2 stops21h 55m

R15 701

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sun 3/5

13:45-18:30

1 stop23h 45m

Ko Samui

Sun 17/5

17:40-18:35

1 stop29h 55m

R17 800

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 2/4

10:05-10:45

2 stops19h 40m

Ko Samui

Sun 3/5

8:45-10:15

2 stops30h 30m

R17 903

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 5/2

11:00-19:35

1 stop27h 35m

Ko Samui

Sun 15/2

11:40-7:25

1 stop24h 45m

R18 398

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sun 3/5

13:45-11:55

2 stops17h 10m

Ko Samui

Sun 17/5

17:40-18:35

1 stop29h 55m

R19 097

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 4/12

10:25-15:35

2 stops24h 10m

Ko Samui

Wed 17/12

17:40-16:35

2 stops27h 55m

R19 541

Flights are sorted by cheapest return flights first.

Deals found on 15/11

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

When is the best time to book a flight to Ko Samui?

Use this chart to determine the optimal time to book a return flight from Johannesburg to Ko Samui. Price data was last updated on 14 November 2025.

The price you pay for your flight to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Ko Samui?

On average, a flight from Johannesburg to Ko Samui takes 19 hours 40 minutes. Flights to Ko Samui from other popular cities in South Africa will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Ko Samui?

The most popular airlines flying from Johannesburg to Ko Samui are Singapore Airlines, Qatar Airways and Emirates.

Singapore Airlines
Singapore Airlines
From R10 333
Qatar Airways
Qatar Airways
From R16 664
Emirates
Emirates
From R14 175
Cathay Pacific
Cathay Pacific
From R15 674

What are the cheapest airlines that fly to Ko Samui?

The cheapest airlines flying from Johannesburg to Ko Samui are Singapore Airlines, Emirates and Cathay Pacific.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 mm 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.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

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).

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 16 November 2025.
Read through reviews of airlines serving Thailand, such as Emirates, Singapore Airlines, andCathay Pacific. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8,1
Very Good
3 412 reviews
Check prices

Crew

8,3

Entertainment

8,2

Comfort

8,0

Overall

8,1

Food

7,9

Boarding

8,1

Reviews

1 / 20
8,0
Excellent

Anonymous,Aug 2025

CEB - CRK

On the plane it was good. They served me food for ky special request. But my baggage arrived late, so today I received my 1 luggage and still the other one is need wait.
Emirates
8,1
Very Good
3 412 reviews
Emirates
8,1
Very Good
3 412 reviews
Check prices

Crew

8,3

Entertainment

8,2

Comfort

8,0

Overall

8,1

Food

7,9

Boarding

8,1

Reviews

1 / 20
8,0
Excellent

Anonymous,Aug 2025

CEB - CRK

On the plane it was good. They served me food for ky special request. But my baggage arrived late, so today I received my 1 luggage and still the other one is need wait.
Singapore Airlines
8,1
Very Good
1 402 reviews
Emirates
8,1
Very Good
3 412 reviews
Check prices

Crew

8,3

Entertainment

8,2

Comfort

8,0

Overall

8,1

Food

7,9

Boarding

8,1

Reviews

1 / 20
8,0
Excellent

Anonymous,Aug 2025

CEB - CRK

On the plane it was good. They served me food for ky special request. But my baggage arrived late, so today I received my 1 luggage and still the other one is need wait.
Cathay Pacific
7,6
Good
1 060 reviews
Emirates
8,1
Very Good
3 412 reviews
Check prices

Crew

8,3

Entertainment

8,2

Comfort

8,0

Overall

8,1

Food

7,9

Boarding

8,1

Reviews

1 / 20
8,0
Excellent

Anonymous,Aug 2025

CEB - CRK

On the plane it was good. They served me food for ky special request. But my baggage arrived late, so today I received my 1 luggage and still the other one is need wait.
Qatar Airways
7,4
Good
3 664 reviews
Emirates
8,1
Very Good
3 412 reviews
Check prices

Crew

8,3

Entertainment

8,2

Comfort

8,0

Overall

8,1

Food

7,9

Boarding

8,1

Reviews

1 / 20
8,0
Excellent

Anonymous,Aug 2025

CEB - CRK

On the plane it was good. They served me food for ky special request. But my baggage arrived late, so today I received my 1 luggage and still the other one is need wait.

FAQs about flying to Ko Samui

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

    If you book a flight to Ko Samui, you will be flying into Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 3,3 km from the centre of Ko Samui.

  • 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, Singapore Airlines 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 R1 167, while return flights cost around R4 124.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around R5 476, however they can be found for as little as R4 124.

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

    For those looking to save time traveling to Ko Samui, Johannesburg offers the quickest one-way flight (19 hours 40 minutes).

  • Does Ko Samui have car hire?

    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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights 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 to Ko Samui?

Millions of users choose and trust Cheapflights to book the best flight deals 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 to Ko Samui with no change fees?

Yes! Cheapflights helps users easily find flights to Ko Samui with no change fees.

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

Yes, Cheapflights offers price alerts on Ko Samui flights so you can book your flight when prices are ideal. Enable price alerts 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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