AirHint found the following cheapest return flights from Kolkata (CCU) to Hanoi (HAN) in January 2026 (see full year).

Return flights

14 Jan - 21 Jan	IndiGo	direct
26 Jan - 01 Feb	IndiGo	direct
14 Jan - 20 Jan	IndiGo	direct
21 Jan - 27 Jan	IndiGo	direct
19 Jan - 23 Jan	IndiGo	direct
09 Jan - 15 Jan	IndiGo	direct
09 Jan - 16 Jan	IndiGo	direct
21 Jan - 28 Jan	IndiGo
17 Jan - 25 Jan	Thai VietJet Air
01 Jan - 08 Jan	IndiGo	direct
04 Jan - 11 Jan	IndiGo	direct
31 Jan - 07 Feb	Thai VietJet Air
23 Jan - 04 Feb	Thai AirAsia
18 Jan - 16 Feb	IndiGo
22 Jan - 01 Feb	Thai AirAsia
18 Jan - 16 Feb	IndiGo	direct

Also check the deals for one-way flights from Kolkata to Hanoi in January.

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 Hanoi in January from $248

Return flights