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

Return flights

15 May - 20 May	AirAsia
13 May - 20 May	AirAsia
12 May - 15 May	Air India
12 May - 20 May	Air India
02 May - 06 May	Air India
13 May - 16 May	Air India
13 May - 17 May	Air India
15 May - 20 May	Singapore Airlines	direct
13 May - 16 May	Singapore Airlines	direct
13 May - 20 May	Singapore Airlines	direct
30 May - 06 Jun	Singapore Airlines	direct
28 May - 03 Jun	Air India

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

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 May from $174

Return flights