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

Return flights

08 Oct - 11 Nov	AirAsia
18 Oct - 25 Oct	Singapore Airlines	direct
17 Oct - 26 Oct	Singapore Airlines	direct
22 Oct - 26 Oct	Singapore Airlines	direct
14 Oct - 20 Oct	Singapore Airlines	direct
08 Oct - 11 Nov	IndiGo	direct
30 Oct - 12 Nov	AirAsia
21 Oct - 24 Oct	IndiGo	direct
30 Oct - 11 Nov	AirAsia
09 Oct - 26 Oct	AirAsia
10 Oct - 26 Oct	AirAsia
13 Oct - 26 Oct	AirAsia
09 Oct - 18 Oct	AirAsia
10 Oct - 18 Oct	AirAsia
30 Oct - 06 Nov	AirAsia
23 Oct - 12 Nov	AirAsia
30 Oct - 19 Nov	AirAsia
30 Oct - 05 Nov	AirAsia
30 Oct - 08 Nov	AirAsia
30 Oct - 01 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 178€

Return flights