AirHint found the following cheapest return flights from Kolkata (CCU) to Singapore (SIN) in October 2025 (see full year).

Return flights

28 Oct - 31 Oct	Malaysia Airlines
27 Oct - 03 Nov	Malaysia Airlines
23 Oct - 30 Oct	AirAsia
03 Oct - 12 Oct	AirAsia
29 Oct - 30 Oct	AirAsia
13 Oct - 30 Oct	AirAsia
13 Oct - 26 Oct	AirAsia
03 Oct - 12 Oct	IndiGo	direct
29 Oct - 15 Nov	AirAsia
22 Oct - 30 Oct	AirAsia
05 Oct - 26 Oct	AirAsia
29 Oct - 12 Nov	AirAsia
24 Oct - 30 Oct	AirAsia
29 Oct - 02 Nov	Singapore Airlines	direct
22 Oct - 12 Nov	AirAsia
24 Oct - 12 Nov	AirAsia
31 Oct - 15 Nov	AirAsia
27 Oct - 15 Nov	AirAsia
29 Oct - 17 Nov	AirAsia
23 Oct - 12 Nov	AirAsia

Also check the deals for one-way flights from Kolkata to Singapore in October.

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 Kolkata to Singapore in October from 183€

Return flights