Cheap Flights from Sa Khu to Koh Samui: HKT→USM from HK$888

View HK$888 flight on Mon, 20 Oct 2025Opens in a new window

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

Prices were available within the past 7 days and start at HK$888 for one-way flights and HK$1,775 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Sun, 16 Nov - Thu, 20 Nov
HKT
Phuket
USM
Koh Samui
HK$1,775 Return, found 3 days ago
HK$1,775
Return
found 3 days ago
Select Bangkok Airways flight, departing Sun, 16 Nov from Phuket to Koh Samui, returning Thu, 20 Nov, priced at HK$1,775 found 3 days ago
Bangkok Airways
Thu, 18 Sep - Sun, 21 Sep
HKT
Phuket
USM
Koh Samui
HK$1,818 Return, found 5 hours ago
HK$1,818
Return
found 5 hours ago
Select Bangkok Airways flight, departing Thu, 18 Sep from Phuket to Koh Samui, returning Sun, 21 Sep, priced at HK$1,818 found 5 hours ago
Bangkok Airways
Sun, 16 Nov - Thu, 20 Nov
HKT
Phuket
USM
Koh Samui
HK$1,829 Return, found 3 days ago
HK$1,829
Return
found 3 days ago
Select Bangkok Airways flight, departing Sun, 16 Nov from Phuket to Koh Samui, returning Thu, 20 Nov, priced at HK$1,829 found 3 days ago
Bangkok Airways
Thu, 18 Sep - Sun, 21 Sep
HKT
Phuket
USM
Koh Samui
HK$1,880 Return, found 5 hours ago
HK$1,880
Return
found 5 hours ago
Select Bangkok Airways flight, departing Thu, 18 Sep from Phuket to Koh Samui, returning Sun, 21 Sep, priced at HK$1,880 found 5 hours ago
Bangkok Airways
Thu, 25 Sep - Thu, 2 Oct
HKT
Phuket
USM
Koh Samui
HK$1,891 Return, found 1 day ago
HK$1,891
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu, 25 Sep from Phuket to Koh Samui, returning Thu, 2 Oct, priced at HK$1,891 found 1 day ago
Bangkok Airways
Thu, 18 Sep - Sun, 21 Sep
HKT
Phuket
USM
Koh Samui
HK$1,942 Return, found 5 hours ago
HK$1,942
Return
found 5 hours ago
Select Bangkok Airways flight, departing Thu, 18 Sep from Phuket to Koh Samui, returning Sun, 21 Sep, priced at HK$1,942 found 5 hours ago

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

June is typically the cheapest month to fly

From HK$1,078 - HK$1,877 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.