Cheap flights from Singapore to Koh Samui Islands

View AU$254 flight on Mon, 20 Oct. 2025Opens in a new window

Popular airlines from Singapore to Koh Samui Islands

  • Scoot

    Scoot

  • Bangkok Airways

    Bangkok Airways

  • Thai Airways International

    Thai Airways International

  • Cathay Pacific

    Cathay Pacific

  • Vietnam Airlines

    Vietnam Airlines

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Cheap Flights from Singapore (SIN) to Koh Samui Islands (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.

Scoot
Fri, 12 Sep. - Tue, 16 Sep.
SIN
Singapore
USM
Koh Samui
AU$461 Return, found 9 hours ago
AU$461
Return
found 9 hours ago
Select Scoot flight, departing Fri, 12 Sep. from Singapore to Koh Samui, returning Tue, 16 Sep., priced at AU$461 found 9 hours ago
Scoot
Sat, 13 Sep. - Mon, 15 Sep.
SIN
Singapore
USM
Koh Samui
AU$462 Return, found 16 hours ago
AU$462
Return
found 16 hours ago
Select Scoot flight, departing Sat, 13 Sep. from Singapore to Koh Samui, returning Mon, 15 Sep., priced at AU$462 found 16 hours ago
Bangkok Airways
Fri, 12 Sep. - Tue, 16 Sep.
SIN
Singapore
USM
Koh Samui
AU$716 Return, found 9 hours ago
AU$716
Return
found 9 hours ago
Select Bangkok Airways flight, departing Fri, 12 Sep. from Singapore to Koh Samui, returning Tue, 16 Sep., priced at AU$716 found 9 hours ago
Thai Airways International
Thu, 6 Nov. - Thu, 13 Nov.
SIN
Singapore
USM
Koh Samui
AU$834 Return, found 6 days ago
AU$834
Return
found 6 days ago
Select Thai Airways International flight, departing Thu, 6 Nov. from Singapore to Koh Samui, returning Thu, 13 Nov., priced at AU$834 found 6 days ago
Vietnam Airlines
Fri, 12 Sep. - Tue, 16 Sep.
SIN
Singapore
USM
Koh Samui
AU$935 Return, found 9 hours ago
AU$935
Return
found 9 hours ago
Select Vietnam Airlines flight, departing Fri, 12 Sep. from Singapore to Koh Samui, returning Tue, 16 Sep., priced at AU$935 found 9 hours ago
Cathay Pacific
Fri, 1 Aug. - Sun, 3 Aug.
SIN
Singapore
USM
Koh Samui
AU$7,172 Return, found 4 hours ago
AU$7,172
Return
found 4 hours ago
Select Cathay Pacific flight, departing Fri, 1 Aug. from Singapore to Koh Samui, returning Sun, 3 Aug., priced at AU$7,172 found 4 hours ago

Find the cheapest month to fly from Singapore (SIN) to Koh Samui (USM)

October is typically the cheapest month to fly

From AU$371 - AU$518 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.