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R15 081+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
Jul 28 — Aug 41
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 28 June 2026.

Fri 11/914:05
JNB
-
USM
2 stops21h 30m
Qatar Airways
Fri 18/912:10
USM
-
JNB
2 stops26h 00m
Qatar Airways
Deal found 24/6R15 081
Fri 11/920:25
JNB
-
USM
1 stop17h 25m
Singapore Airlines
Fri 18/919:45
USM
-
JNB
1 stop28h 35m
Singapore Airlines
Deal found 24/6R15 278
Fri 4/913:30
JNB
-
USM
2 stops23h 30m
Emirates
Wed 23/914:30
USM
-
JNB
2 stops24h 45m
Emirates
Deal found 25/6R15 311
Fri 11/920:25
JNB
-
USM
1 stop17h 25m
Multiple Airlines
Fri 18/96:00
USM
-
JNB
2 stops18h 20m
Multiple Airlines
Deal found 24/6R15 393
Thu 17/913:30
JNB
-
USM
2 stops23h 30m
Emirates
Mon 28/919:00
USM
-
JNB
2 stops26h 15m
Emirates
Deal found 25/6R15 870
Mon 14/911:10
JNB
-
USM
1 stop27h 30m
Cathay Pacific
Fri 18/911:55
USM
-
JNB
1 stop25h 00m
Cathay Pacific
Deal found 24/6R17 742

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 28 June 2026.

Return from

R15 081

Popular in

December

Cheapest in

May

Average price

R15 147
Qatar Airways
  • Qatar Airways
  • 11/9-18/9
  • 4 total stops
  • 47h 30m total
  • Johannesburg to Ko Samui
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (R642 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (R312 potential savings vs. average return price).
Search Deals
Average for return flights in June 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 594 507 searches and data was last updated on 28 June 2026.
Use the filters below to find and compare flights to Ko Samui that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sat 12/9

10:05-18:00

2 stops26h 55m

Ko Samui

Sat 26/9

14:30-10:15

2 stops24h 45m

R15 311

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Mon 14/9

10:05-11:55

2 stops20h 50m

Ko Samui

Fri 18/9

14:30-16:15

2 stops30h 45m

R15 311

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Fri 4/9

13:30-18:00

2 stops23h 30m

Ko Samui

Wed 23/9

14:30-10:15

2 stops24h 45m

R15 327

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 17/9

10:05-18:00

2 stops26h 55m

Ko Samui

Mon 28/9

14:30-10:15

2 stops24h 45m

R15 870

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Mon 14/9

11:10-19:40

1 stop27h 30m

Ko Samui

Fri 18/9

11:55-7:55

1 stop25h 00m

R17 775
Fastest return journey

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Sat 12/9

20:25-18:50

1 stop17h 25m

Ko Samui

Sat 26/9

8:40-19:20

1 stop15h 40m

R18 892

JohannesburgKo Samui

JNB - USM

JNBUSM

Johannesburg OR Tambo

Thu 17/9

13:45-17:20

1 stop22h 35m

Ko Samui

Mon 28/9

8:40-19:20

1 stop15h 40m

R19 467

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Sorted by cheapest first

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

How long is the flight to Ko Samui?

On average, a flight from Johannesburg to Ko Samui takes 23 hours 30 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 R11 331
Qatar Airways
Qatar Airways
From R15 306
Emirates
Emirates
From R14 154

What are the cheapest airlines that fly to Ko Samui?

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

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).

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

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 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 28 June 2026.
Read through reviews of airlines serving Thailand, such as Singapore Airlines,Emirates, andQatar Airways. 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.
Singapore Airlines
8,2
Very Good
1 555 reviews
Check prices

Comfort

8,0

Boarding

8,3

Crew

8,6

Overall

8,2

Food

7,8

Entertainment

8,1

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
1 555 reviews
Singapore Airlines
8,2
Very Good
1 555 reviews
Check prices

Comfort

8,0

Boarding

8,3

Crew

8,6

Overall

8,2

Food

7,8

Entertainment

8,1

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.
Emirates
8,1
Very Good
3 602 reviews
Singapore Airlines
8,2
Very Good
1 555 reviews
Check prices

Comfort

8,0

Boarding

8,3

Crew

8,6

Overall

8,2

Food

7,8

Entertainment

8,1

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.
Qatar Airways
7,3
Good
3 736 reviews
Singapore Airlines
8,2
Very Good
1 555 reviews
Check prices

Comfort

8,0

Boarding

8,3

Crew

8,6

Overall

8,2

Food

7,8

Entertainment

8,1

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?

    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 336, while return flights cost around R3 098.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around R5 299, however they can be found for as little as R3 098.

  • 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 (23 hours 30 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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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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