In general, May is the cheapest month to fly from Australia to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $959. If you are unable to visit Ko Samui during the month of May, then departing from Australia during the month October is also very affordable. Most momondo users find prices during this month for around $964.
The best time to book a flight to Ko Samui from Australia is 32 days out, which is when prices tend to be around $1,128. Keep in mind that you might also find cheap flights to Ko Samui outside of this time window. In fact, momondo users recently found flights from Australia to Ko Samui for $821.
According to our data, Tuesday is the cheapest day to fly to Ko Samui from Australia. The lowest ticket price found for a Tuesday departure recently was $1,018. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,218. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ko Samui.
In the afternoon is the cheapest time of day to fly from Australia to Ko Samui when you can find flight prices for as low as $1,025. Flying to Ko Samui in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Ko Samui are more costly in the morning, with an average ticket price of $1,167. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.