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

Return flights

31 Dec - 31 Jan	IndiGo
03 Dec - 20 Dec	Air China
31 Dec - 18 Jan	IndiGo
31 Dec - 20 Jan	IndiGo
30 Dec - 18 Jan	IndiGo
03 Dec - 16 Dec	Air China
31 Dec - 11 Jan	China Southern
31 Dec - 12 Jan	IndiGo
29 Dec - 10 Jan	IndiGo
29 Dec - 11 Jan	IndiGo
01 Dec - 16 Dec	AirAsia X
29 Dec - 31 Jan	IndiGo
30 Dec - 31 Jan	IndiGo
01 Dec - 15 Dec	AirAsia X
04 Dec - 11 Dec	AZAL
02 Dec - 13 Dec	Gulf Air
02 Dec - 09 Dec	Kuwait Airways
01 Dec - 17 Dec	AirAsia X
06 Dec - 20 Dec	Gulf Air
15 Dec - 29 Dec	AZAL

Also check the deals for one-way flights from Istanbul 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 Istanbul to Hanoi in December from $575

Return flights