AirHint found the following cheapest return flights from Kolkata (CCU) to Singapore (SIN) in April 2026 (see full year).

Return flights

22 Apr - 28 Apr	AirAsia
23 Apr - 28 Apr	AirAsia
01 Apr - 06 Apr	AirAsia
01 Apr - 05 Apr	AirAsia
02 Apr - 07 Apr	Air India
23 Apr - 30 Apr	Air India
01 Apr - 08 Apr	Air India
01 Apr - 30 Apr	Air India
15 Apr - 20 Apr	Air India
22 Apr - 30 Apr	Air India
28 Apr - 03 May	Air India
28 Apr - 03 May	Singapore Airlines	direct

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

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 April from $174

Return flights