AirHint found the following cheapest one-way flights from Kolkata (CCU) to Singapore (SIN) in April 2026 (see full year).
One-Way flights
| 04 Apr | Malaysia Airlines | ||
| 10 Apr | IndiGo | direct | |
| 07 Apr | IndiGo | direct | |
| 04 Apr | IndiGo | direct | |
| 25 Apr | IndiGo | ||
| 25 Apr | IndiGo | direct |
Also check the deals for return flights from Kolkata to Singapore in April.
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