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$318 Find Cheap Flights to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
$692
Typical prices: $948-$1,533
Scoot
Mon 19/2Fri 2/3
PER - USM • 1 stop
Cheapest one-way flight
$318
Typical prices: $449-$961
Scoot
Thu 15/2
PER - USM • 1 stop
Top airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
Top routes
Cheapest • 33% average savings
Most popular
Insights
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When to book
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
+1
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Flight Deals

Cheap Flights to Ko Samui

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Ko Samui

Fri, 19 Feb - Tue, 2 Mar
Scoot Logo
21:10 - 18:50PER  Perth-USM Ko Samui
22h 40m1 stop Singapore Changi
Scoot Logo
18:05 - 19:40USM  Ko Samui-PER Perth
24h 35m1 stop Singapore Changi
$692Scoot
Tue, 13 Oct - Sat, 24 Oct
Scoot Logo
05:35 - 18:50PER  Perth-USM Ko Samui
14h 15m1 stop Singapore Changi
Scoot Logo
18:15 - 04:20USM  Ko Samui-PER Perth
9h 05m1 stop Singapore Changi
$716Scoot
Wed, 14 Oct - Thu, 22 Oct
Multiple Airlines Logo
16:00 - 10:30PER  Perth-USM Ko Samui
19h 30m1 stop Phuket City
Multiple Airlines Logo
12:30 - 17:10USM  Ko Samui-PER Perth
27h 40m2 stops Krabi Singapore Changi
$719Multiple Airlines
Sat, 24 Oct - Sat, 31 Oct
Multiple Airlines Logo
07:30 - 18:00PER  Perth-USM Ko Samui
11h 30m1 stop Phuket City
Multiple Airlines Logo
08:15 - 16:25USM  Ko Samui-PER Perth
31h 10m2 stops Phuket City Ho Chi Minh City
$727Multiple Airlines
Mon, 19 Oct - Thu, 22 Oct
Qantas Airways Logo
12:15 - 18:15PER  Perth-USM Ko Samui
31h 00m1 stop Singapore Changi
Qantas Airways Logo
13:30 - 00:40USM  Ko Samui-PER Perth
10h 10m1 stop Singapore Changi
$1,110Qantas Airways
Mon, 19 Oct - Thu, 22 Oct
Qantas Airways Logo
12:15 - 18:15PER  Perth-USM Ko Samui
31h 00m1 stop Singapore Changi
Qantas Airways Logo
13:30 - 00:40USM  Ko Samui-PER Perth
10h 10m1 stop Singapore Changi
$1,112Qantas Airways
Sun, 1 Nov - Mon, 30 Nov
Singapore Airlines Logo
18:35 - 17:10ADL  Adelaide-USM Ko Samui
26h 05m1 stop Singapore Changi
Singapore Airlines Logo
19:45 - 08:50USM  Ko Samui-ADL Adelaide
33h 35m1 stop Singapore Changi
$1,455Singapore Airlines
Mon, 18 Jan - Wed, 27 Jan
Thai Airways Logo
14:30 - 07:10MEL  Melbourne-USM Ko Samui
20h 40m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
19:40 - 21:35USM  Ko Samui-MEL Melbourne
21h 55m1 stop Bangkok Suvarnabhumi
$1,465Thai Airways
Mon, 18 Jan - Mon, 25 Jan
Thai Airways Logo
15:25 - 09:20SYD  Sydney Kingsford Smith-USM Ko Samui
21h 55m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
12:15 - 11:55USM  Ko Samui-SYD Sydney Kingsford Smith
19h 40m1 stop Bangkok Suvarnabhumi
$1,526Thai Airways
Sun, 1 Nov - Mon, 16 Nov
Singapore Airlines Logo
18:35 - 17:10ADL  Adelaide-USM Ko Samui
26h 05m1 stop Singapore Changi
Singapore Airlines Logo
18:05 - 08:50USM  Ko Samui-ADL Adelaide
11h 15m1 stop Singapore Changi
$1,545Singapore Airlines
Booking Insights

Price, demand, and travel trends for Australia to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Australia to Ko Samui with more confidence.

What is the cheapest flight to Ko Samui?

Perth to Ko Samui is the cheapest route at $692 return, found in the past 5 days on KAYAK. Melbourne Airport to Ko Samui is the most popular connection with return deals from $1,465.

How much is a flight to Ko Samui?

A return flight to Ko Samui costs $1,223 on average, based on data over the past 12 months on KAYAK. Return fares from Perth average $988, while Sydney runs a bit higher at $1,219.

What is the cheapest day to fly to Ko Samui?

Monday is the cheapest day to fly to Ko Samui at $1,189 return on average over the past 12 months on KAYAK. Friday is the most expensive at $1,325.

What is the cheapest month to fly to Ko Samui?

  • November is the cheapest month to fly to Ko Samui with an average price of $1,026 return.
  • December ($1,791) and January ($1,382) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Ko Samui?

Night flights to Ko Samui are the cheapest at $1,121 return on average. Evening flights are the most expensive at $1,401.

What is a good deal for flights to Ko Samui?

Flights under $948 are considered a good deal. 25% of KAYAK users found return flights to Ko Samui at or below these prices, with the lowest fares from:

  • Perth $768
  • Melbourne Airport $913
.

When are flights to Ko Samui the cheapest?

Flights to Ko Samui are cheapest 26 weeks before departure. Booking in this window typically costs about 19% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for flights to Ko Samui

Low season

March

Cheapest flight

$318
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 1% lower on average.
Flights from Perth to Ko Samui

When to book flights to Ko Samui

Are your dates flexible? Find out the best times to travel to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Ko Samui, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What are the transportation options available at Ko Samui Airport?

    Ko Samui Airport is operated by Bangkok Airways. You can reach the airport by bus, train, boat, car or by air. For arrivals, there is a tram ride service to the luggage collection. Once you have collected your luggage, you will need to present your passport and Arrival Card at the immigration counter. The transport options at Ko Samui Airport include taxis and minivan taxis, shared minivan transfers and car hire.

  • Is there a service for unaccompanied children?

    Yes, there is a service for children. To ensure the safe voyage of young passengers, Bangkok Airways has an Unaccompanied Minor (UMNR) service for children travelling without a guardian, from the age of six. They can also offer the service for older children, up to 12 years, if needed.

  • What services are available for travellers with disabilities?

    Passengers who require special assistance, whether on arrival or departure, should contact the Airport Information Desk. Some of the facilities provided at this airport are ramps for wheelchairs, specially allocated parking for people with disabilities and specially equipped restrooms. Also, if you need, you can find wheelchairs for use within the airport. Please remember to contact your airline at least 48h before the flight to let them know you may need extra assistance.

  • What is there to do near Ko Samui Airport?

    A popular attraction in Ko Samui just outside the airport terminal is the unusual Samui Robot Group. Located just outside the airport, this attraction recycles old cars and motorbikes into Alien and Predator-like monsters, creating an entertaining exhibit for the whole family.

  • What hotels are near to Ko Samui Airport?

    With Ko Samui being a resort town, there are plenty of relaxing hotels and resorts within a five-minute drive of the airport. Both the Saboey Resort and Villas and the Samui Pier Beach Front Resort offer an airport shuttle service to help get you to and from the airport. The closest option for those only in Ko Samui for a short time is the Corner Transit Hotel, within a five-minute walk of the airport terminal.

  • Is there anything that can help me relax and unwind at Ko Samui Airport?

    Start your resort holiday as you intend to continue with a traditional Thai massage at the airport’s Soul to Sole Spa. Whether you’re looking for something quick before your flight or a long and luxurious treatment to help you recover after a long haul, there is a wide range of options available.

  • Are there any beaches near Ko Samui Airport?

    Even those who are just passing through Ko Samui will want to enjoy the island’s most famous attraction: its beaches. There are two beaches within walking distance of the airport. The Bo Phut beach stretches towards the North with shopping and dining options located in the picturesque Fisherman’s Village. Chaweng beach is the busiest in town, lined with resorts and rental shops for all your water activity needs.

  • What is the difference between the most popular and the most frequent airline at Ko Samui?

    Qantas Airways operates the most flights from Australia to Ko Samui at 0 per week, while Scoot is the airline most often selected by KAYAK users searching for flights from Australia to Ko Samui. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Where can I fly from to get the cheapest fares to Ko Samui?

    Based on fares booked in the past 5 days, the cheapest flights to Ko Samui are from:
    • Melbourne, from $1,465 return

  • How do I know if a flight to Ko Samui is a good deal?

    A good deal on a flight to Ko Samui is around $948 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How expensive are last-minute flights to Ko Samui?

    Last-minute fares to Ko Samui – booked within 2 weeks of departure – run 9% above the average return fare of $1,223.

Your guide to booking Ko Samui flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Ko Samui, aim to book around 26 weeks before you fly. That window historically saves about 19% versus last-minute pricing based on KAYAK booking data over the last 12 months.
  • For flights to Ko Samui, recent KAYAK data shows that stronger deals tend to be around $948 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to Ko Samui in November. Return fares historically average $1,026 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to evening to save up to $280 per return. Evening flights to Ko Samui average $1,121 compared to $1,401 for afternoon flights. See the time-of-day chart above for the full breakdown.
  • Once you arrive in Ko Samui, a few great places to start are Lamai Beach, Chaweng Beach, and Bophut Beach. These are popular with first-time visitors and can give you a good feel for the area.
  • The minivan must have a minimum number of passengers before it leaves Samui International Airport (USM).
  • The bus service is located outside adjacent to the meeting building. The buses leave every hour or so starting at 07:30 through to 21:30. Transfers or vehicle hire can be arranged prior to your arrival at Ko Samui Airport.
  • At Samui International Airport, you will find a limousine service, tours and activities to book for your holiday and a left luggage service. If you are travelling with children or meeting a group, there are several meeting points dotted all over the airport.
  • There are no charging points for electronic devices currently at Ko Samui Airport, so keep this in mind.
  • Your flight to Ko Samui will take you to Ko Samui Airport, which is considered one of the most beautiful airports in the world. The few buildings that make up the airport terminal are open-air with thatched roofs, while the interior features award-winning architecture incorporating locally sourced materials and provides a comfortable and pleasant space to fly into or wait for your flight.
  • If you’re looking for even more luxury, you can pay to use of one of the passenger lounges. The Blue Ribbon Club and Boutique Lounge both have locations just outside Gate 7. Here you can enjoy a drink while you make use of the Wi-Fi and relax as you wait for your next flight.
  • Travelling to and from the airport can be done in a number of ways – by taxi, by minivan or by boat. For those who are travelling to the nearby islands, the airport is conveniently located for the ferry terminal or the speedboats that can take you around the Chumphon Archipelago. Otherwise, Ko Samui City is only five minutes from the airport.
  • If you’d like to stretch your legs after your flight to Ko Samui, you can walk in the sunshine through the picturesque and quiet Ko Samui Airport Garden. You can find a quiet piece of lawn to sit down, or wander around the uniquely Thai flora with its bright and colourful flowers.
  • Ko Samui Airport recently opened a new shopping and dining area called Samui Park Avenue. While most airports offer you indoor shopping malls, Samui Park Avenue is all set outdoors under the Thai sun. Here you can enjoy a range of restaurants, cafés and English-style pubs featuring local and Western cuisine, or walk through the shops browsing for gift ideas.

Reviews of the top 4 airlines flying to Ko Samui

 
Need help choosing which airline to fly with to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1599 reviews
8.0Comfort
8.6Crew
8.3Boarding
7.8Food
8.1Entertainment
Airline reviews

I had the worst experience of my life in travel. Due to circumstances beyond my control (catastrophic traffic accidents on the highway between Gold Coast and Brisbane) I missed my flight for the first time ever. Because I booked through Kayak Singapore Airlines were not interested in helping me. They told me to contact the agent that I booked through. I was extremely stressed as I had connecting flights in Europe. First Kayak told me that the next available flights were in four days time. Then they told me that they could do it but at a cost of $2600 AUD. When I agreed he told me that he was having trouble getting it through Singapore’s system and he would contact me further once it had been done. When I had not heard from him after several hours, I phoned Kayak again, spoke to a different person who said he could do it for $8200. I declined and told him to cancel the booking. The worst part of this experience was that I had booked 5 flights altogether with Singapore including Premium Economy on two legs and Singapore cancelled all my flights including the return legs leaving me with having to completely reschedule my entire trip. Kayak refunded me $2000 from $5200, obviously leaving me out of pocket. This has left me feeling that I will never deal with Kayak or Singapore Airlines again.

2.0 MediocreJanine, July 2026
Read more Singapore Airlines reviews

I had the worst experience of my life in travel. Due to circumstances beyond my control (catastrophic traffic accidents on the highway between Gold Coast and Brisbane) I missed my flight for the first time ever. Because I booked through Kayak Singapore Airlines were not interested in helping me. They told me to contact the agent that I booked through. I was extremely stressed as I had connecting flights in Europe. First Kayak told me that the next available flights were in four days time. Then they told me that they could do it but at a cost of $2600 AUD. When I agreed he told me that he was having trouble getting it through Singapore’s system and he would contact me further once it had been done. When I had not heard from him after several hours, I phoned Kayak again, spoke to a different person who said he could do it for $8200. I declined and told him to cancel the booking. The worst part of this experience was that I had booked 5 flights altogether with Singapore including Premium Economy on two legs and Singapore cancelled all my flights including the return legs leaving me with having to completely reschedule my entire trip. Kayak refunded me $2000 from $5200, obviously leaving me out of pocket. This has left me feeling that I will never deal with Kayak or Singapore Airlines again.

Crew were so busy Anna so awesome. I was in a seat that got my food nearly last but the crew were Just awesome.

No frills airline with minimal leg room and no entertainment

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Headwind delayed our flight which wasn’t the airlines fault

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Food could have been better. Too many passengers getting up and down all the time.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

Airport lounge for business class is too crowded and not comfortable. Poor foods and facilities. Boarding was delayed. A lot of coughing people in the flight even in the business class, which indicated poor screening and health risks.

There was no screens on the flight, and no wifi with which we could connect to the internet and stream any content. This was a smaller plan so the business class seats were a bit tight. No hot towels or welcome drinks like when you fly on the bigger TG on the same route. The food was excellent, much better than the previous Thai airways business class meals. It was also nice that they offered eye masks for easy sleeping.

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

We still get drinks and a snack. Love the gift bags too.

Excellent airline. The plane was clean and the staff were very attentive

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

Could have been better. I prefer Thai airlines only but it hasnt been reliable.

Small twin prop plane. Basic flight. Food was half a chicken & pesto sandwich. As the flight departed after 12pm alcohol was available. No on board entertainment. No wifi services.

I liked the refreshments as the flight was short and the free WiFi. The seats were comfortable.

Although the flight was delayed and out of their control, we boarded and were underway in no time. The crew were great, the service A1 and the meal was superb ( I had the chicken dish). I would fly with Qantas again, anytime. Noel Swift

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

From start to finish, every part of the experience was outstanding. The care and kindness shown to my 95-year-old mother was exceptional—truly 10 out of 10. From the assistance she received at Sydney Airport while boarding the plane to the help she was given when arriving at Wagga Wagga Airport, every staff member was friendly, professional, and genuinely caring. They made her feel comfortable, safe, and well looked after throughout her journey. A heartfelt thank you to everyone who helped make my mother's trip such a wonderful experience. Your compassion and dedication are greatly appreciated.

My flight with Qantas was excellent, the crew were exceptional, the food was very good, and the seats were surprisingly spacious and comfortable. I was extremely disappointed when my checked bag did not make it onto my connecting flight, but was pleased with the ease of filing a report of a missing bag with Qantas at the Auckland airport - there, my pleasure ended. I can see, with an apple tag on my bag, that it is still in Sydney and has not moved in more than 30 hours. I shared the tracking information with Qantas and was assured when I filed the missing bag report that my bag would be delivered first thing the next morning on the next flight from Sydney to Auckland. Qantas' missing bag tracking feature still lists its status as "searching for your bag, check back later" more than a full 24 hours after filing the report despite my having shared tracking information, a photo of the bag, and calling the customer care line and being assured that an "urgent action message" had been sent to the team in Sydney. The lack of communication from Qantas' customer service department and the lack of action after an incredibly expensive business class ticket price is outrageous and has, definitively, affected my willingness to consider flying Qantas in the future, much less on long-haul international flights with high cost airfare.

Going from Sydney to London on a single flight number was very convenient, not having to worry about changing planes. Entertainment system on A380 economy cabin is very dated. Lavatories are small. The self serve refreshments have been significantly reduced since the A380 first started.

It was ok, but not what it was like 20 years ago

It seems that qantas are trying hard to regain their status as Australia's premier airline. I only flew economy but happy with the service entertainment, food, configuration everything.

One of the oldest most uncomfortable "lay down" seats I've ever experienced. Old plane and old seats that don't lay flat. The seat back does not even recline - at all. Instead the legrest awkwardly extends to fill the gap between a small cubby into which you must insert your feet/legs. I am 5' 11" and could not lay straight but had to tuck my knees. Ticket was also very expensive. Would not recommend flying business/first on Finair from Melbourne to Bangkok and will not do so again myself.

“They carefully called each boarding group in turn, only to herd everyone onto a bus for the drive across the airport apron. By the time we reached the aircraft, all semblance of orderly boarding had disappeared and it became a complete bun fight to get on board. Rather nonsensical really — why bother with boarding groups in the first place?”unless you are at an air bridge!!!

3 hours delay ,we changed plane after boarding and waiting inside

Apart from the staff at the airport who were amazing the rest of the experience with scoot was disgusting a very basic flight packed and uncomfortable no consideration to a disabled traveller. And even worse from Singapore to Vienna. All about the money. Not even a complementary coffee or juice. From the airline. The staff at the airport didn't look at me as been disabled and no help not even a wheelchair was offered. The food on the plane was cheap and tasteless and expensive no entertainment on plane and WiFi which had to be paid for was intermittent at best.

Finishes were quite worn, including our very scratched up seatback. No entertainment available, and the WiFi (even for “ScootHub”) was very slow. Crew were somewhat friendly.

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

The crew was not customer oriented at all, even confrontational . The aircraft needs more attention to detail as far as comfort, and the 1 hour sitting at the gate with no air is inexcusable

Was on scoot plus. The only good thing about the flight was the spacious seats. Tables and armrests were extremely dirty Food: bad Entertainment: non existent Wifi: unable to connect, then was painfully slow that we couldn’t even send messages Good thing we had a night flight, so we just slept throughout.

Me and my Partner were in seats 6A and 6B. (Which we paid a premium for). Unfortunately the person is seat 6C was large and because of his size my Partner was squashed to the point of discomfort and unable to sit properly. We requested to be moved to some empty seats and two hours into the flight the crew moved us. Perhaps it’s time airlines began checking passenger sizes to ensure they don’t encroach into fellow passengers seating space!

U could offer everyone a drink ,juice or water.. coffe or tea ...ur air craft isn't a flea market ,where someone has to buy a tea or water!!

Extra luggage after you purchase 1 is gonna jacked u up to 800sgd which is so up to the hook... you could buy 3 round trips ticket on that price.. im so disappointed.. im not gonna choose this airline anymore.. horrible experience...

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