฿9,187 Find Cheap Flights from Sydney to Ko Samui – Compare and Save

A direct flight from Sydney to Ko Samui takes 00m, covering 11,642 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from Sydney to Ko Samui range from ฿23,975 to ฿36,400, with an average of ฿30,342 over the past 12 months. Anything below ฿23,975 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 3% above the ฿30,342 route average. Book 21 weeks before departure for the lowest fares.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿17,666 to ฿161,626. That means the highest observed fare was about 9x higher than the lowest one.

One-way fares from Sydney to Ko Samui are currently lower than usual. Average one-way flight prices are about ฿13,683, which is 23% below the typical average for this route.

Flights from Sydney to Ko Samui usually depart from Sydney Kingsford Smith (SYD) and arrive at Ko Samui (USM).

One-stop flights from Sydney to Ko Samui most commonly connect through:

• Singapore Changi (SIN) – 84% of one-stop connections
• Bangkok Suvarnabhumi (BKK) – 16% of one-stop connections
• Hong Kong Intl (HKG) – 0% of one-stop connections

Yes. Flexible dates can save you up to 22% on flights from Sydney to Ko Samui. Monday is the cheapest departure day at ฿27,225 return on average, while Saturday is the most expensive at ฿34,588, a difference of ฿7,363.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Flying via Bangkok Suvarnabhumi (BKK) gives the shortest average 1-stop total travel time of 13h 36m, compared to 14h 32m via Singapore Changi (SIN) and 15h 06m via Hong Kong Intl (HKG).

Ko Samui is 4 hours behind Sydney (Indochina Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

Your allowable cabin baggage will depend on the airline you book with. For example, Qantas and Thai Airways generally offer a 7 kg carry-on bag plus a small personal item, such as a handbag or laptop bag. Bangkok Airways usually offers a 5 kg carry-on bag and a personal item. Generally speaking, your personal item should be small enough to fit under the seat in front of you.

You’ll generally have at least one stopover before you reach Koh Samui, and some of the most common destinations include Bangkok (BKK), Ho Chi Minh City (SGN), Hong Kong (HKG) and Singapore (SIN). You’ll find plenty of itineraries with carriers like Qantas, Thai Airways and Bangkok Airways that have short stopovers, reducing your overall transit time. However, if you prefer to take a bit of time to stretch your legs between flights, itineraries with longer stops are also available.