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

  • Bangkok Airways

    Bangkok Airways

  • Scoot

    Scoot

  • 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 1 day ago
AU$461
Return
found 1 day ago
Select Scoot flight, departing Fri, 12 Sep. from Singapore to Koh Samui, returning Tue, 16 Sep., priced at AU$461 found 1 day ago
Scoot
Sat, 13 Sep. - Mon, 15 Sep.
SIN
Singapore
USM
Koh Samui
AU$462 Return, found 1 day ago
AU$462
Return
found 1 day ago
Select Scoot flight, departing Sat, 13 Sep. from Singapore to Koh Samui, returning Mon, 15 Sep., priced at AU$462 found 1 day ago
Bangkok Airways
Tue, 31 Mar. - Tue, 14 Apr.
SIN
Singapore
USM
Koh Samui
AU$711 Return, found 18 hours ago
AU$711
Return
found 18 hours ago
Select Bangkok Airways flight, departing Tue, 31 Mar. from Singapore to Koh Samui, returning Tue, 14 Apr., priced at AU$711 found 18 hours ago
Thai Airways International
Thu, 30 Oct. - Sun, 2 Nov.
SIN
Singapore
USM
Koh Samui
AU$853 Return, just found
AU$853
Return
just found
Select Thai Airways International flight, departing Thu, 30 Oct. from Singapore to Koh Samui, returning Sun, 2 Nov., priced at AU$853 just found
Vietnam Airlines
Fri, 12 Sep. - Tue, 16 Sep.
SIN
Singapore
USM
Koh Samui
AU$935 Return, found 1 day ago
AU$935
Return
found 1 day ago
Select Vietnam Airlines flight, departing Fri, 12 Sep. from Singapore to Koh Samui, returning Tue, 16 Sep., priced at AU$935 found 1 day ago
Cathay Pacific
Thu, 21 Aug. - Thu, 4 Sep.
SIN
Singapore
USM
Koh Samui
AU$7,172 Return, found 18 hours ago
AU$7,172
Return
found 18 hours ago
Select Cathay Pacific flight, departing Thu, 21 Aug. from Singapore to Koh Samui, returning Thu, 4 Sep., priced at AU$7,172 found 18 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.