AirHint found the following cheapest return flights from Kolkata (CCU) to Hanoi (HAN) in August 2026 (see full year).
Return flights
| 06 Aug - 07 Aug | IndiGo | direct | |
| 06 Aug - 10 Aug | IndiGo | direct | |
| 04 Aug - 07 Aug | IndiGo | direct | |
| 28 Aug - 31 Aug | IndiGo | direct | |
| 18 Aug - 25 Aug | IndiGo | direct | |
| 06 Aug - 06 Aug | Thai Airways |
Also check the deals for one-way flights from Kolkata to Hanoi in August.
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