Flights to Koh Samui from Sa Khu

View ฿2,260 flight on Wed, 3 Sep 2025Opens in a new window

Popular airlines from Sa Khu to Koh Samui

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ฿2,260 for one-way flights and ฿4,685 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Thu, 11 Sep - Wed, 17 Sep
HKT
Phuket
USM
Koh Samui
฿4,685 Return, found 4 days ago
฿4,685
Return
found 4 days ago
Select Bangkok Airways flight, departing Thu, 11 Sep from Phuket to Koh Samui, returning Wed, 17 Sep, priced at ฿4,685 found 4 days ago
Bangkok Airways
Mon, 1 Sep - Sun, 14 Sep
HKT
Phuket
USM
Koh Samui
฿5,575 Return, found 4 days ago
฿5,575
Return
found 4 days ago
Select Bangkok Airways flight, departing Mon, 1 Sep from Phuket to Koh Samui, returning Sun, 14 Sep, priced at ฿5,575 found 4 days ago
Bangkok Airways
Mon, 1 Sep - Sun, 14 Sep
HKT
Phuket
USM
Koh Samui
฿5,825 Return, found 4 days ago
฿5,825
Return
found 4 days ago
Select Bangkok Airways flight, departing Mon, 1 Sep from Phuket to Koh Samui, returning Sun, 14 Sep, priced at ฿5,825 found 4 days ago
Bangkok Airways
Mon, 1 Sep - Sun, 14 Sep
HKT
Phuket
USM
Koh Samui
฿6,075 Return, found 4 days ago
฿6,075
Return
found 4 days ago
Select Bangkok Airways flight, departing Mon, 1 Sep from Phuket to Koh Samui, returning Sun, 14 Sep, priced at ฿6,075 found 4 days ago
Bangkok Airways
Sat, 18 Oct - Sat, 25 Oct
HKT
Phuket
USM
Koh Samui
฿6,375 Return, found 4 days ago
฿6,375
Return
found 4 days ago
Select Bangkok Airways flight, departing Sat, 18 Oct from Phuket to Koh Samui, returning Sat, 25 Oct, priced at ฿6,375 found 4 days ago
Bangkok Airways
Mon, 1 Sep - Thu, 4 Sep
HKT
Phuket
USM
Koh Samui
฿6,460 Return, just found
฿6,460
Return
just found
Select Bangkok Airways flight, departing Mon, 1 Sep from Phuket to Koh Samui, returning Thu, 4 Sep, priced at ฿6,460 just found
Bangkok Airways
Mon, 1 Sep - Thu, 4 Sep
HKT
Phuket
USM
Koh Samui
฿6,710 Return, just found
฿6,710
Return
just found
Select Bangkok Airways flight, departing Mon, 1 Sep from Phuket to Koh Samui, returning Thu, 4 Sep, priced at ฿6,710 just found

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

June is typically the cheapest month to fly

From ฿4,427 - ฿7,716 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.