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Cheap flights from Adelaide to Ko Samui from $488

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — USM
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Adelaide to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Adelaide (ADL) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 September 2025.

Popular in

December

Cheapest in

May

Average price

$1,407
Highest demand for flights based on searches. 20% potential increase in price ($593 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($98 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Adelaide to Ko Samui

Best flights from Adelaide to Ko Samui
Discover carefully curated flight deals from Adelaide to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Wed 29/1014:45ADL - USM
2 stops31h 35mMultiple Airlines
Wed 5/1108:55USM - ADL
2 stops33h 50mMultiple Airlines
Deal found 14/9$893
Sat 17/118:35ADL - USM
1 stop16h 55mSingapore Airlines
Tue 27/119:45USM - ADL
1 stop33h 35mSingapore Airlines
Deal found 14/9$1,809
Sat 17/118:35ADL - USM
1 stop16h 55mMultiple Airlines
Tue 27/118:05USM - ADL
2 stops33h 50mMultiple Airlines
Deal found 14/9$1,437
Wed 29/1010:15ADL - USM
1 stop12h 05mSingapore Airlines
Wed 5/1108:55USM - ADL
1 stop20h 25mSingapore Airlines
Deal found 14/9$1,868

Cheapflights Fare Finder

 
Customise your flight search to find flights from Adelaide to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Adelaide to Ko Samui that are best for you.

Fly from

Adelaide

Fly to

Ko Samui

Route

Depart

Return

Price

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Wed 29/10

14:45-18:50

2 stops31h 35m

Ko Samui

Wed 5/11

08:55-22:15

2 stops33h 50m

$893

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Sat 17/1

18:35-08:00

1 stop16h 55m

Ko Samui

Tue 27/1

18:05-07:25

2 stops33h 50m

$1,437

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Sat 17/1

18:35-08:00

1 stop16h 55m

Ko Samui

Tue 27/1

19:45-08:50

1 stop33h 35m

$1,809

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Wed 29/10

10:15-18:50

1 stop12h 05m

Ko Samui

Wed 5/11

08:55-08:50

1 stop20h 25m

$1,868

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Thu 15/1

08:05-17:10

2 stops36h 35m

$488

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Wed 15/10

10:30-13:10

2 stops30h 10m

$809

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Wed 15/10

08:00-21:10

2 stops16h 40m

$809

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Thu 15/1

18:35-08:00

1 stop16h 55m

$923

AdelaideKo Samui

ADL - USM

ADLUSM

Adelaide

Wed 15/10

10:10-16:45

1 stop10h 05m

$1,173

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Best time to book a flight from Adelaide to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Adelaide 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 from Adelaide to Ko Samui

What is the cheapest month to book a flight from Adelaide to Ko Samui?

Currently, August is the cheapest month in which you can book a flight from Adelaide to Ko Samui (average of $533). Flying from Adelaide to Ko Samui in December is currently the most expensive (average of $1,051). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 17 September 2025.
Read through reviews of airlines operating flights from Adelaide to Ko Samui, such as Singapore Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,365 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Related info for your journey

Find useful and relevant information for your journey from Adelaide to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Adelaide to Ko Samui round-trip?

    According to our current data, Singapore Airlines ($1,044), offers the cheapest pricing from Adelaide to Ko Samui. Singapore Airlines is currently priced 31% below the average price you’ll pay for this route.

  • Can I find deals for flights from Adelaide to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Adelaide to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Adelaide to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Adelaide to Ko Samui.

  • Can I find deals for business class flights from Adelaide to Ko Samui?

    Yes. Cheapflights offers flight deals from Adelaide to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Adelaide to Ko Samui?

    Currently, August is the cheapest month in which you can book a flight from Adelaide to Ko Samui (average of $533). Flying from Adelaide to Ko Samui in December is currently the most expensive (average of $1,051). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Adelaide to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Adelaide to Ko Samui

Discover the top airline that operate flights from Adelaide to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,044Average$1,380FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Adelaide to Ko Samui?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ko Samui from Adelaide today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Adelaide to Ko Samui for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Adelaide to Ko Samui with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Adelaide to Ko Samui, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Adelaide to Ko Samui become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ko Samui from Adelaide today and book when prices fit your budget.

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