฿20,040 Cheap Thai Airways International flights from Sydney to Samui Intl. Airport (SYD→USM)

View ฿20,040 flight on Mon, 27 Apr 2026Opens in a new window

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Thai Airways International flights from Sydney to Samui Intl. Airport (SYD→USM)

Prices were available within the past 7 days and start at ฿20,040 for one-way flights and ฿31,610 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Airways International
Tue, 28 Apr - Sat, 9 May
SYD
Sydney
USM
Koh Samui
฿31,610 Return, found 4 days ago
฿31,610
Return
found 4 days ago
Select Thai Airways International flight, departing Tue, 28 Apr from Sydney to Koh Samui, returning Sat, 9 May, priced at ฿31,610 found 4 days ago
Flight from Sydney to Samui Intl. Airport route information
Origin airport
Kingsford Smith Intl.
Destination airport
Samui Intl. Airport
Airlines serving
British Airways, Qantas Airways, Scoot, Singapore Airlines, Thai Airways International
Popular airline
British Airways
Distance
7195 km

Frequently asked questions

How much is a Thai Airways International flight from Kingsford Smith Intl. Airport (SYD) to Ko Samui Airport (USM)?
You'll find affordable round-trip Thai Airways International flights from ฿31,610 from SYD to USM by sorting your results from "Price (lowest to highest)" on Expedia. Or search for options from ฿20,040 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SYD to USM with Thai Airways International?
October is one of the most affordable months to fly to Koh Samui with Thai Airways International. You could also find fantastic deals on one-way and return fares in September.
Does Thai Airways International fly nonstop from Kingsford Smith Intl. Airport (SYD) to Ko Samui Airport (USM)?
Enter your dates, press search and tick the "Nonstop" filter on Expedia to browse any direct flights from SYD to USM with Thai Airways International or other carriers.
What airports does Thai Airways International fly into in Koh Samui?
Ko Samui Airport (USM) is the primary Koh Samui gateway for Thai Airways International flights from Kingsford Smith Intl. Airport (SYD).
Can I change or cancel my Thai Airways International flight from Kingsford Smith Intl. Airport (SYD) to Ko Samui Airport (USM)?
In most cases, you can cancel or reschedule your flight, although additional fees may apply if you booked more than 24 hours ago. Need to keep your options open? Apply the "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you have to revise your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for more information.
*Available to Expedia members.