R12 134+ 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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
Jan 31 — Feb 71
1 adult
1 adult, Economy, 0 bags

Flights to Ko Samui in 2026

Enter your travel dates to find the best prices.

Best flights to Ko Samui
Discover carefully curated flight deals to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 January 2026.

Mon 11/513:30JNB - USM
2 stops22h 25mEmirates
Thu 14/58:00USM - JNB
2 stops37h 15mEmirates
Deal found 29/12R14 538
Sat 27/619:50JNB - USM
2 stops19h 40mMultiple Airlines
Tue 7/76:00USM - JNB
2 stops17h 35mMultiple Airlines
Deal found 30/12R16 013
Sun 3/513:45JNB - USM
1 stop22h 35mSingapore Airlines
Sun 17/518:15USM - JNB
1 stop29h 20mSingapore Airlines
Deal found 30/12R16 312
Sun 3/510:05JNB - USM
2 stops25h 50mEmirates
Sun 17/58:00USM - JNB
2 stops37h 15mEmirates
Deal found 31/12R14 571
Tue 10/214:30JNB - USM
2 stops21h 10mMultiple Airlines
Tue 3/318:30USM - JNB
2 stops23h 35mMultiple Airlines
Deal found 30/12R16 129
Mon 11/519:50JNB - USM
1 stop18h 00mSingapore Airlines
Thu 14/519:45USM - JNB
1 stop15h 25mSingapore Airlines
Deal found 29/12R18 400
Sun 3/513:45JNB - USM
2 stops17h 10mMultiple Airlines
Sun 17/519:45USM - JNB
1 stop27h 50mMultiple Airlines
Deal found 31/12R16 942

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 594 507 searches and data was last updated on 1 January 2026.

Return from

R14 538

One-way from

R12 134

Popular in

December

Cheapest in

September

Average price

R16 693
Emirates
  • Emirates
  • 3/5-17/5
  • 4 total stops
  • 64h 00m total
  • Johannesburg to Ko Samui
Singapore Airlines
  • Singapore Airlines
  • 16/5
  • 1 total stop
  • 16h 30m total
  • Johannesburg to Ko Samui
Highest demand for flights based on searches. 6% potential increase in price (R1 034 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (R297 potential savings vs. average return price).
Average for return flights in January 2026

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 1 January 2026.
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

Mon 11/5

13:30-16:55

2 stops22h 25m

Ko Samui

Thu 14/5

8:00-16:15

2 stops37h 15m

R14 538

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sun 3/5

10:05-16:55

2 stops25h 50m

Ko Samui

Sun 17/5

8:00-16:15

2 stops37h 15m

R14 571

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sat 27/6

19:50-20:30

2 stops19h 40m

Ko Samui

Tue 7/7

6:00-18:35

2 stops17h 35m

R16 013

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Tue 10/2

14:30-16:40

2 stops21h 10m

Ko Samui

Tue 3/3

18:30-13:05

2 stops23h 35m

R16 129

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sun 3/5

13:45-17:20

1 stop22h 35m

Ko Samui

Sun 17/5

18:15-18:35

1 stop29h 20m

R16 312

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sun 3/5

13:45-11:55

2 stops17h 10m

Ko Samui

Sun 17/5

19:45-18:35

1 stop27h 50m

R16 942

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Mon 11/5

19:50-18:50

1 stop18h 00m

Ko Samui

Thu 14/5

19:45-6:10

1 stop15h 25m

R18 400

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sat 16/5

19:50-17:20

1 stop16h 30m

R12 134

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sat 16/5

19:50-20:30

2 stops19h 40m

R14 952

Flights are sorted by cheapest return flights first.

Deals found on 30/12

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 26 December 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 18 hours 0 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 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 1 January 2026.
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.

Food

7,9

Overall

8,1

Crew

8,3

Boarding

8,1

Comfort

8,0

Entertainment

8,2

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.

Food

7,9

Overall

8,1

Crew

8,3

Boarding

8,1

Comfort

8,0

Entertainment

8,2

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.

Food

7,9

Overall

8,1

Crew

8,3

Boarding

8,1

Comfort

8,0

Entertainment

8,2

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.

Food

7,9

Overall

8,1

Crew

8,3

Boarding

8,1

Comfort

8,0

Entertainment

8,2

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.

Food

7,9

Overall

8,1

Crew

8,3

Boarding

8,1

Comfort

8,0

Entertainment

8,2

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 176, while return flights cost around R2 334.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around R4 155, however they can be found for as little as R2 334.

  • 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 (18 hours 0 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 Pha Ngan
Ko Tao

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How does Cheapflights help users find flights to Ko Samui?

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

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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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