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R9 659+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
Mar 30 — Apr 61
1 adult

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 25 March 2025.

Return from

R16 572

One-way from

R9 659

Popular in

January

Cheapest in

September

Average price

R18 318
Singapore Airlines
  • Singapore Airlines
  • 8/5-15/5
  • 2 total stops
  • 59h 15m total
  • Johannesburg to Ko Samui
Qatar Airways
  • Qatar Airways
  • 2/4
  • 2 total stops
  • 21h 55m total
  • Johannesburg to Ko Samui
Highest demand for flights based on searches. 14% potential increase in price (R54 889 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (R7 778 potential savings vs. average return price).
Average for return flights in March 2025

Find flight deals to Ko Samui

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 25 March 2025.

Sat 25/1019:50JNB - USM
1 stop31h 10mSingapore Airlines
Fri 7/118:55USM - JNB
1 stop14h 40mSingapore Airlines
Deal found 24/3R12 261
Thu 8/511:20JNB - USM
1 stop26h 15mMultiple Airlines
Thu 15/514:00USM - JNB
2 stops22h 40mMultiple Airlines
Deal found 24/3R16 717
Thu 8/520:40JNB - USM
2 stops34h 15mQatar Airways
Thu 15/515:50USM - JNB
2 stops23h 10mQatar Airways
Deal found 24/3R17 554
Thu 8/513:45JNB - USM
3 stops19h 55mMalaysia Airlines
Thu 15/519:10USM - JNB
3 stops28h 25mMalaysia Airlines
Deal found 24/3R50 297
Thu 31/720:40JNB - USM
3 stops38h 05mCathay Pacific
Mon 11/815:30USM - JNB
3 stops29h 40mCathay Pacific
Deal found 24/3R146 836

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 25 March 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 8/5

13:45-18:30

1 stop23h 45m

Ko Samui

Thu 15/5

12:05-18:35

1 stop35h 30m

R16 572

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 8/5

11:20-18:35

1 stop26h 15m

Ko Samui

Thu 15/5

14:00-7:40

2 stops22h 40m

R16 717

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 8/5

20:40-11:55

2 stops34h 15m

Ko Samui

Thu 15/5

15:50-10:00

2 stops23h 10m

R17 554

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 8/5

13:45-14:40

3 stops19h 55m

Ko Samui

Thu 15/5

19:10-18:35

3 stops28h 25m

R50 297

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 31/7

20:40-15:45

3 stops38h 05m

Ko Samui

Mon 11/8

15:30-16:10

3 stops29h 40m

R146 836

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Wed 2/4

13:55-16:50

2 stops21h 55m

R9 659

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Wed 2/4

12:50-19:45

3 stops25h 55m

R11 078

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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 21 March 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 55 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 17 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 cheapest airlines that fly to Ko Samui?

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

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 25 March 2025.

Crew

8,6

Entertainment

8,0

Food

7,7

Overall

8,1

Boarding

8,2

Comfort

7,9

Reviews

1 / 20
2,0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Crew

8,6

Entertainment

8,0

Food

7,7

Overall

8,1

Boarding

8,2

Comfort

7,9

Reviews

1 / 20
2,0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Crew

8,6

Entertainment

8,0

Food

7,7

Overall

8,1

Boarding

8,2

Comfort

7,9

Reviews

1 / 20
2,0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Crew

8,6

Entertainment

8,0

Food

7,7

Overall

8,1

Boarding

8,2

Comfort

7,9

Reviews

1 / 20
2,0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

Crew

8,6

Entertainment

8,0

Food

7,7

Overall

8,1

Boarding

8,2

Comfort

7,9

Reviews

1 / 20
2,0
Mediocre

Anonymous,Sept 2024

SIN - DPS

Your state of the art Boeing 787 was so hot I was sweating 90% of the flight. There is no reason or excuse for that.

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 384, while return flights cost around R2 446.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around R136, however they can be found for as little as R134.

  • 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 (17 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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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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