AirHint found the following cheapest one-way flights from Hanoi (HAN) to Kolkata (CCU) in December 2026 (see full year).
One-Way flights
| 30 Dec | Thai Airways | ||
| 07 Dec | Thai Airways | ||
| 07 Dec | IndiGo | direct | |
| 30 Dec | IndiGo | direct |
Also check the deals for return flights from Hanoi to Kolkata in December.
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