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R17 413+ 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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
jun. 16 — jun. 231
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 11 juni 2025.

Return from

R17 413

Popular in

January

Cheapest in

September

Average price

R15 695
25/7-4/8
  • 25/7-4/8
  • 4 total stops
  • 45h 10m total
  • Johannesburg to Ko Samui
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (R53 088 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (R8 273 potential savings vs. average return price).
Search Deals
Average for return flights in June 2025
Search Deals

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 11 juni 2025.

vr 25/711:20JNB - USM
2 stops24h 15mMultiple Airlines
ma 4/815:45USM - JNB
2 stops20h 55mMultiple Airlines
Deal found 9/6R17 413
za 4/1013:55JNB - USM
2 stops22h 10mQatar Airways
wo 15/1017:55USM - JNB
2 stops27h 15mQatar Airways
Deal found 10/6R18 529
vr 25/711:20JNB - USM
1 stop26h 15mCathay Pacific
ma 4/810:55USM - JNB
1 stop25h 45mCathay Pacific
Deal found 9/6R19 503
vr 1/813:45JNB - USM
1 stop16h 25mSingapore Airlines
ma 18/88:45USM - JNB
1 stop14h 50mSingapore Airlines
Deal found 9/6R61 663

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 11 juni 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

vr 25/7

11:20-16:35

2 stops24h 15m

Ko Samui

ma 4/8

15:45-7:40

2 stops20h 55m

R17 413

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

za 4/10

13:55-17:05

2 stops22h 10m

Ko Samui

wo 15/10

17:55-16:10

2 stops27h 15m

R18 529

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

vr 25/7

11:20-18:35

1 stop26h 15m

Ko Samui

ma 4/8

10:55-7:40

1 stop25h 45m

R19 503

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

vr 1/8

13:45-11:10

1 stop16h 25m

Ko Samui

ma 18/8

8:45-18:35

1 stop14h 50m

R61 663

Flights are sorted by cheapest return flights first.

Deals found on 9/6

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 9 June 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 22 hours 10 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 R606
Qatar Airways
Qatar Airways
From R956
Emirates
Emirates
From R911
Etihad Airways
Etihad Airways
From R803

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 11 juni 2025.
Singapore Airlines
8,1
Very Good
1 302 reviews
Check prices

Crew

8,6

Comfort

7,9

Food

7,7

Overall

8,1

Entertainment

8,0

Boarding

8,2

Reviews

1 / 20
6,0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8,1
Very Good
1 302 reviews
Singapore Airlines
8,1
Very Good
1 302 reviews
Check prices

Crew

8,6

Comfort

7,9

Food

7,7

Overall

8,1

Entertainment

8,0

Boarding

8,2

Reviews

1 / 20
6,0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Cathay Pacific
7,6
Good
892 reviews
Singapore Airlines
8,1
Very Good
1 302 reviews
Check prices

Crew

8,6

Comfort

7,9

Food

7,7

Overall

8,1

Entertainment

8,0

Boarding

8,2

Reviews

1 / 20
6,0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Qatar Airways
7,4
Good
3 584 reviews
Singapore Airlines
8,1
Very Good
1 302 reviews
Check prices

Crew

8,6

Comfort

7,9

Food

7,7

Overall

8,1

Entertainment

8,0

Boarding

8,2

Reviews

1 / 20
6,0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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 194, while return flights cost around R2 435.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around R152, however they can be found for as little as R137.

  • 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 (22 hours 10 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?

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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.

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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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