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

Return flights

10 Jun - 17 Jun	Air India
09 Jun - 17 Jun	Air India
24 Jun - 29 Jun	Air India
29 Jun - 04 Jul	Air India
18 Jun - 26 Jun	Air India
09 Jun - 17 Jun	Singapore Airlines	direct
18 Jun - 26 Jun	Singapore Airlines	direct
24 Jun - 29 Jun	Singapore Airlines	direct
10 Jun - 17 Jun	Singapore Airlines	direct
29 Jun - 04 Jul	Singapore Airlines	direct
02 Jun - 05 Jun	Singapore Airlines	direct
04 Jun - 09 Jun	Air India

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

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 June from $193

Return flights