AirHint found the following cheapest return flights from Kochi (COK) to Singapore (SIN) in September 2025 (see full year).

Return flights

03 Sep - 10 Sep	Air India Express
03 Sep - 17 Sep	Air India Express
02 Sep - 08 Sep	Air India
02 Sep - 06 Sep	Air India
04 Sep - 08 Sep	Air India
10 Sep - 17 Sep	Air India
22 Sep - 29 Sep	Air India
10 Sep - 15 Sep	Air India
03 Sep - 08 Sep	Air India
08 Sep - 16 Sep	Air India
26 Sep - 01 Oct	IndiGo
30 Sep - 04 Oct	IndiGo
27 Sep - 04 Oct	IndiGo
24 Sep - 08 Oct	Air India Express
24 Sep - 01 Oct	Air India Express
17 Sep - 08 Oct	Air India Express
17 Sep - 01 Oct	Air India Express
25 Sep - 08 Oct	AirAsia
25 Sep - 01 Oct	AirAsia
24 Sep - 11 Oct	Air India Express

Also check the deals for one-way flights from Kochi to Singapore in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Kochi to Singapore in September from $198

Return flights