AirHint found the following cheapest return flights from Delhi (DEL) to Hanoi (HAN) in December 2025 (see full year).

Return flights

31 Dec - 10 Jan	Thai AirAsia X
31 Dec - 07 Jan	Air India
29 Dec - 19 Jan	Thai AirAsia X
31 Dec - 11 Jan	Air India Express
29 Dec - 12 Jan	IndiGo
30 Dec - 08 Jan	IndiGo
31 Dec - 08 Jan	Thai AirAsia X
30 Dec - 20 Jan	Thai AirAsia X
30 Dec - 07 Jan	IndiGo
31 Dec - 04 Jan	Vietnam Airlines
27 Dec - 31 Dec	IndiGo
30 Dec - 31 Dec	Thai AirAsia X
28 Dec - 31 Dec	VietJet Air
28 Dec - 30 Dec	IndiGo
28 Dec - 30 Dec	IndiGo	direct
28 Dec - 31 Dec	IndiGo	direct
27 Dec - 31 Dec	IndiGo	direct

Also check the deals for one-way flights from Delhi to Hanoi in December.

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 Delhi to Hanoi in December from 367€

Return flights