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Cheap Flights from Sydney (SYD) to Koh Samui (USM)

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Compare Sydney to Samui International flight deals

Find the cheapest month or even day of the year to fly to Samui International

Book the best Samui International fare with no extra fees

Flight deals from Sydney to Samui International

Looking for a cheap last-minute deal or the best return flight from Sydney to Samui International? Find the lowest prices on one-way and return tickets right here.
Koh Samui.$619 per passenger.Departing Fri, 10 Oct, returning Tue, 28 Oct.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Fri, 10 Oct, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Tue, 28 Oct, arriving in Sydney.Price includes taxes and charges.From $619, select.
Koh Samui.$620 per passenger.Departing Mon, 8 Sep, returning Wed, 24 Sep.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Mon, 8 Sep, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Wed, 24 Sep, arriving in Sydney.Price includes taxes and charges.From $620, select.
Koh Samui.$621 per passenger.Departing Tue, 4 Nov, returning Sat, 15 Nov.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Tue, 4 Nov, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Sat, 15 Nov, arriving in Sydney.Price includes taxes and charges.From $621, select.
Koh Samui.$622 per passenger.Departing Tue, 28 Oct, returning Thu, 6 Nov.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Tue, 28 Oct, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Thu, 6 Nov, arriving in Sydney.Price includes taxes and charges.From $622, select.
Koh Samui.$627 per passenger.Departing Thu, 5 Mar, returning Tue, 10 Mar.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Thu, 5 Mar, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Tue, 10 Mar, arriving in Sydney.Price includes taxes and charges.From $627, select.
Koh Samui.$628 per passenger.Departing Tue, 12 Aug, returning Tue, 2 Sep.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Tue, 12 Aug, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Tue, 2 Sep, arriving in Sydney.Price includes taxes and charges.From $628, select.
Koh Samui.$629 per passenger.Departing Fri, 8 Aug, returning Fri, 15 Aug.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Fri, 8 Aug, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Fri, 15 Aug, arriving in Sydney.Price includes taxes and charges.From $629, select.
Koh Samui.$631 per passenger.Departing Wed, 30 Jul, returning Fri, 8 Aug.Return flight with Scoot.Outbound indirect flight with Scoot, departs from Sydney on Wed, 30 Jul, arriving in Samui International.Inbound indirect flight with Scoot, departs from Samui International on Fri, 8 Aug, arriving in Sydney.Price includes taxes and charges.From $631, select.

Find the cheapest month to fly from Sydney to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sydney to Samui International flights are currently cheapest in October.
Jun
from $857
Jul
from $693
Aug
from $629
Sep
from $620
Oct
from $619
Nov
from $621
Dec
from $754
Jan
from $847
Feb
from $699
Mar
from $627
Apr
from $674
May
from $644

Sydney to Samui International: Alternative routes

Compare routes from Sydney to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Sydney to Koh Samui: Flight information

The things to know before you go.
Cheapest flight found$619
Cheapest month to flyOctober

Finding cheap flights from Sydney to Samui International: Frequently asked questions

The best price we found for a return flight from Sydney to Samui International is $619. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sydney to Samui International. But we found flights with one or more stops from $619.
As of June 2025, there are no flights flying from Sydney to Samui International.
The cheapest month to fly from Sydney to Samui International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sydney Airport to Samui International Airport on Friday, 10 October 2025.
No airlines currently offer direct flights between Sydney Airport and Samui International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Scoot offers the cheapest flight tickets to Samui International.

Flying from Sydney (Kingsford Smith) Airport (SYD) to Koh Samui Airport (USM): what you need to know

  • Give yourself enough time to catch your SYD to USM flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months like April, it's best to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're travelling during peak periods in general.

  • If you want to add a stop to your trip, simply deselect 'Direct flights only' when searching for your ticket from Sydney (Kingsford Smith) Airport to Koh Samui Airport. Here are the top stopovers between SYD and USM:

    • Changi International Airport

    • Suvarnabhumi Airport

    • Hong Kong International Airport

How to find the cheapest flights from Sydney (Kingsford Smith) Airport (SYD) to Koh Samui Airport (USM)

  • Currently, $328 is the cheapest price we've seen for a one-way Sydney (Kingsford Smith) Airport to Koh Samui Airport flight. The best price for a return plane ticket is $619. Bear in mind that fares can change due to demand when booking.

  • It's a good idea to book as early as possible if you want to get cheap tickets from SYD to USM. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Sydney (Kingsford Smith) Airport to Koh Samui Airport is easier if you can be flexible with your travel plans. Use the 'Whole month' tool to see the lowest fares across every month and land a great deal.

  • Stay on top of deals for cheap flights from SYD to USM by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Tailor your trip with filters. Pick your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Sydney (Kingsford Smith) Airport to Koh Samui Airport.

Handy information about Sydney (Kingsford Smith) Airport (SYD)

  • Of the flights that depart from Sydney (Kingsford Smith) Airport, 69.62% arrive on time at their destination.

  • To get to Sydney (Kingsford Smith) Airport from central Sydney, it'll take around 20 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 18 kilometres from the airport to the city centre.

  • Catching public transport? You can expect a journey time of around 25 minutes.

  • Need a handy hotel near SYD? If you're catching an early flight from Sydney (Kingsford Smith) Airport to Koh Samui Airport, these stays will have you sleeping moments from your departure lounge:

Arriving at Koh Samui Airport (USM)

  • If you're arriving on a late Sydney (Kingsford Smith) Airport to Koh Samui Airport flight, nothing beats the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and snoozing shortly after at one of these accommodation options near USM:

  • Go where the road takes you with a Koh Samui Airport rental car. Pick up your wheels from asap car hire, Hertz or Drive Car Hire and chase adventure across Koh Samui and beyond.

  • Lock in the best deal by reserving your ride from Koh Samui Airport about four weeks before your travel date.

Getting from Koh Samui Airport (USM) to central Koh Samui

  • Koh Samui Airport to the centre of Koh Samui is about 3 kilometres. Journey times may change depending on traffic and the time of day, so checking a navigation app for live updates is a good idea.

When to fly to Koh Samui Airport (USM)

  • The quietest month for a flight from Sydney (Kingsford Smith) Airport to Koh Samui Airport is February, while July is the most popular. Pick the ideal time to visit Koh Samui based on whether you prefer a bustling atmosphere or a more laid-back vibe.

Explore more of Thailand

  • Koh Samui is always a good idea, but there are so many other corners of Thailand you should also see. About 467 kilometres north of Koh Samui, a visit to Bangkok will keep you busy. Start with leading sights like Grand Palace, Wat Arun and Wat Phra Kaew.

  • If you're interested in discovering another major destination in Thailand, head for Chon Buri, about 434 kilometres north of Koh Samui. Wat Ton Son, Forest and Phra Phutthasihing Hall are among its highlights.

Plan the rest of your trip from Sydney to Koh Samui

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.