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Cheap flights to Koh Samui

CMH — USM
25 Apr — 2 May1
1 adult
Thu 25/4
Thu 2/5

Flights to Koh Samui in 2024

Find the latest flights to Koh Samui in 2024, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 595,970 searches and data was last updated on 20 April 2024.

Popular in

December

Cheapest in

February

Average price

$1,633

Return from

$897

One-way from

$420
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for return flights in April 2024
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From Sydney Kingsford Smith to Ko Samui
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One-way flight from Sydney Kingsford Smith (SYD) to Ko Samui (USM)
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Average price of flights to Koh Samui by month

Plan your trip to Koh Samui by taking into account the cheapest months to travel. The average price of a one-way flight to Koh Samui is currently $0 while a return flight costs $0. Price data was last updated on 14 April 2024.

Currently, March is the cheapest month in which you can book a flight to Koh Samui (average of $795). Flying to Koh Samui in December will prove the most costly (average of $996). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

January

$1,471

February

$1,279

March

$1,240

April

$1,315

May

$1,273

June

$1,255

July

$1,377

August

$1,287

September

$1,327

October

$1,274

November

$1,262

December

$1,553

Peak season

In the 1970s Thailand’s third largest island was known as a haven for backpackers arriving on cheap flights to Koh Samui. But recent developments of luxury resorts and health spas, plus shops, restaurants and bars, has opened up Koh Samui as a destination of choice for many Australian travellers. Located in the Gulf of Thailand, Koh Samui has a warm, dry climate for most of the year with temps averaging 30C and only a short, wet season. It is blessed with all the trappings of a tropical paradise, white sand beaches with crystal-clear waters, lush tropical rainforest and coral reefs with plentiful fish. Koh Samui’s high season runs from December to August, peaking in the months of July and August. The Christmas holiday period is also very busy and when cheap flights to Koh Samui are harder to find. 

Off Season

Koh Samui’s off season is from September to November as these are the rainy months and sightseeing can be interrupted by afternoon downpours. November is the wettest and windiest month, though surfers should look for cheap flights to Koh Samui at this time as the waves are at their largest.

Temperature and rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature and rainfall totals by month.

USM

Temperature

27 - 29 °C

If weather is an important factor for your trip to Koh 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 Koh Samui?

Use this chart to determine the optimal time to book a return flight to Koh Samui. Price data was last updated on 28 January 2024.

Between May and June is the optimal time to take flights to Koh Samui as there are fewer tourists and accommodation prices are lower. The weather is also at its best and the ocean is perfect for swimming, snorkelling and diving. For the cheapest flights to Koh Samui, search for flights a couple of months out from your dates of choice, and fly midweek if you can.

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When is the cheapest time to fly to Koh Samui?

Use this chart to determine the cheapest time to fly return to Koh Samui. Price data was last updated on 14 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Users looking for the lowest fares to Koh Samui should consider flying on Thursday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday afternoons, when prices are usually at their highest.
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Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated 20 April 2024.
Peruse reviews from past customers who have flown Thai Airways, Malaysia Airlines and Vietnam Airlines to Koh Samui to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very Good
969 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Food

7.8

Overall

8.3

Reviews

1 / 10

The business class cabin is really nice - EXCEPT the two interior seats have no divider between them - which makes for a bad experience -especially when the person next to you coughs excessively with no protection. Basically, the person is looking at you and coughing at you the WHOLE FLIGHT. Most major airlines have a sliding divider you can close for privacy and safety reasons. The window seats do not have this problem - so if you book business class and are traveling solo - make sure to get a window seat - I didn't and regretted it.

China Airlines
8.3
Very Good
969 reviews
China Airlines
8.3
Very Good
969 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Food

7.8

Overall

8.3

Reviews

1 / 10

The business class cabin is really nice - EXCEPT the two interior seats have no divider between them - which makes for a bad experience -especially when the person next to you coughs excessively with no protection. Basically, the person is looking at you and coughing at you the WHOLE FLIGHT. Most major airlines have a sliding divider you can close for privacy and safety reasons. The window seats do not have this problem - so if you book business class and are traveling solo - make sure to get a window seat - I didn't and regretted it.

Singapore Airlines
8.3
Very Good
1,491 reviews
China Airlines
8.3
Very Good
969 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Food

7.8

Overall

8.3

Reviews

1 / 10

The business class cabin is really nice - EXCEPT the two interior seats have no divider between them - which makes for a bad experience -especially when the person next to you coughs excessively with no protection. Basically, the person is looking at you and coughing at you the WHOLE FLIGHT. Most major airlines have a sliding divider you can close for privacy and safety reasons. The window seats do not have this problem - so if you book business class and are traveling solo - make sure to get a window seat - I didn't and regretted it.

Bangkok Airways
8.3
Very Good
218 reviews
China Airlines
8.3
Very Good
969 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Food

7.8

Overall

8.3

Reviews

1 / 10

The business class cabin is really nice - EXCEPT the two interior seats have no divider between them - which makes for a bad experience -especially when the person next to you coughs excessively with no protection. Basically, the person is looking at you and coughing at you the WHOLE FLIGHT. Most major airlines have a sliding divider you can close for privacy and safety reasons. The window seats do not have this problem - so if you book business class and are traveling solo - make sure to get a window seat - I didn't and regretted it.

Cathay Pacific
7.8
Good
1,144 reviews
China Airlines
8.3
Very Good
969 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Food

7.8

Overall

8.3

Reviews

1 / 10

The business class cabin is really nice - EXCEPT the two interior seats have no divider between them - which makes for a bad experience -especially when the person next to you coughs excessively with no protection. Basically, the person is looking at you and coughing at you the WHOLE FLIGHT. Most major airlines have a sliding divider you can close for privacy and safety reasons. The window seats do not have this problem - so if you book business class and are traveling solo - make sure to get a window seat - I didn't and regretted it.

Malaysia Airlines
7.5
Good
404 reviews
China Airlines
8.3
Very Good
969 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Food

7.8

Overall

8.3

Reviews

1 / 10

The business class cabin is really nice - EXCEPT the two interior seats have no divider between them - which makes for a bad experience -especially when the person next to you coughs excessively with no protection. Basically, the person is looking at you and coughing at you the WHOLE FLIGHT. Most major airlines have a sliding divider you can close for privacy and safety reasons. The window seats do not have this problem - so if you book business class and are traveling solo - make sure to get a window seat - I didn't and regretted it.

What is good to know if travelling to Koh Samui?

  • Fisherman’s Village is packed with restaurants, shops, market stalls and bars. There is an Irish bar, naturally, called The Irish Times. The Billabong Surf Club flies the Aussie flag. 
  • Hua Thanon is a Muslim village on the south coast. While there are some restaurants and a wonderful beach, seeing the fishermen at work and looking at their beautifully decorated boats is the best thing. 
  • The bonus to playing a round of golf on Koh Samui are the beautiful views. The Santiburu Samui Country Club on the north coast is an 18-hole, par-72 course. The Royal Samui Golf and Country Club is located next to Chaweng Beach and will be an 18-hole course. It’s nine holes at present. There are views of Lamai, Cheweng and the surrounding islands. 
  • Samui Shooting Sport is close to Chaweng about 200 metres from the Tesco Lotus superstore. It’s a great place to let off some steam with, perhaps, an AK-47. Elephant trekking is a gentler option. It’s a great, slow, way to go into Koh Samaui’s jungly heart. 
  • From the pier at Bophut beach you can take a boat to Ko Pha Ngan or take a day trip to the Ang Thong National Marine Park, which consists of 42 limestone islands with soaring mountains, sheer cliffs and dense, green forest. 
  • Hin Ta and Hin Yai – Grandfather Rock and Grandmother Rock – provide a quirky photo op. The rocks, south of Chaweng beach, are shaped, suggestively, like male and female genitalia. 
  • The Muay Thai stadium in Chaweng town is worth a visit to experience this traditional sport.
  • Have you already explored Koh Samui? Here are some of the best places to visit in Thailand.

  • How long is the flight to Koh Samui?

    Flights From Sydney to Koh Samui – 12 hrs 30 mins Flights From Melbourne to Koh Samui – 12 hrs 35 mins Flights From Brisbane to Koh Samui – 11 hrs 45 mins Flights From Perth to Koh Samui – 8 hrs 40 mins

  • Which airlines operate flights to Koh Samui?

    Thai Airways is the national carrier and operates indirect flights to Koh Samui from Brisbane, Melbourne, Perth and Sydney via Bangkok. Along with Bangkok Airways, Thai Airways services 17 flights per day to the island. Other airlines that offer indirect flights to Koh Samui from Australia are Etihad Airways, Jetstar and Qantas.

  • How to get from the airport to the city centre?

    Koh Samui Airport (USM) is located approximately 3 km north of Chaweng Beach, the main tourist town. The fifteen minute journey can be undertaken by airport shuttle bus, or private and shared minivans, which can seat up to six passengers. The transport counter in the arrivals area handles information and bookings. There are a few car rental companies in the arrivals area if you wish to hire a car for the duration of your stay.

  • What does USM mean?

    USM stands for Ko Samui Airport. Codes like this one are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

    Booking a flight to Ko Samui (USM) is your only option if you intend on flying to Koh Samui. It is only a 3.3 km journey from Ko Samui to Koh Samui’s city centre.

  • Can I find cheaper flights to Koh 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 Koh Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Koh Samui?

    Based on reviews from Cheapflights users, Scoot is rated the highest out of the airlines that fly to Koh Samui.

  • What is the cheapest airport to fly to in Koh Samui?

    Ko Samui Airport is currently the cheapest airport to fly to in Koh Samui. One-way flights to Ko Samui Airport typically cost $85, while return flights cost around $195.

  • How much is a return flight to Koh Samui?

    A return flight to Koh Samui will typically cost around $233, however they can be found for as little as $125.

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

    For those looking to save time traveling to Koh Samui, Melbourne offers the quickest one-way flight (11 hours 30 minutes).

  • Does Ko Samui Airport have car hire?

    Yes. Those touching down at Ko Samui Airport can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ko Samui Airport?

    Yes. Ko Samui Airport has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui Airport (0.0 km away from Ko Samui Airport).

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