Cheap flights from Sa Khu to Koh Samui

View AU$169 flight on Sun, 2 Nov. 2025Opens in a new window

Popular airlines from Sa Khu to Koh Samui

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Cheap Flights from Sa Khu (HKT) to Koh Samui (USM)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Tue, 5 May - Sat, 9 May
HKT
Phuket
USM
Koh Samui
AU$345 Return, found 1 day ago
AU$345
Return
found 1 day ago
Select Bangkok Airways flight, departing Tue, 5 May from Phuket to Koh Samui, returning Sat, 9 May, priced at AU$345 found 1 day ago
Bangkok Airways
Wed, 24 Sep. - Sat, 27 Sep.
HKT
Phuket
USM
Koh Samui
AU$346 Return, found 23 hours ago
AU$346
Return
found 23 hours ago
Select Bangkok Airways flight, departing Wed, 24 Sep. from Phuket to Koh Samui, returning Sat, 27 Sep., priced at AU$346 found 23 hours ago
Bangkok Airways
Tue, 2 Sep. - Sun, 7 Sep.
HKT
Phuket
USM
Koh Samui
AU$356 Return, found 8 hours ago
AU$356
Return
found 8 hours ago
Select Bangkok Airways flight, departing Tue, 2 Sep. from Phuket to Koh Samui, returning Sun, 7 Sep., priced at AU$356 found 8 hours ago
Bangkok Airways
Wed, 24 Sep. - Sat, 27 Sep.
HKT
Phuket
USM
Koh Samui
AU$358 Return, found 23 hours ago
AU$358
Return
found 23 hours ago
Select Bangkok Airways flight, departing Wed, 24 Sep. from Phuket to Koh Samui, returning Sat, 27 Sep., priced at AU$358 found 23 hours ago
Bangkok Airways
Tue, 2 Sep. - Sun, 7 Sep.
HKT
Phuket
USM
Koh Samui
AU$369 Return, found 8 hours ago
AU$369
Return
found 8 hours ago
Select Bangkok Airways flight, departing Tue, 2 Sep. from Phuket to Koh Samui, returning Sun, 7 Sep., priced at AU$369 found 8 hours ago
Bangkok Airways
Wed, 24 Sep. - Sat, 27 Sep.
HKT
Phuket
USM
Koh Samui
AU$370 Return, found 23 hours ago
AU$370
Return
found 23 hours ago
Select Bangkok Airways flight, departing Wed, 24 Sep. from Phuket to Koh Samui, returning Sat, 27 Sep., priced at AU$370 found 23 hours ago

Find the cheapest month to fly from Phuket (HKT) to Koh Samui (USM)

June is typically the cheapest month to fly

From AU$211 - AU$367 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.