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

Return flights

03 Dec - 07 Dec	AirAsia X
03 Dec - 17 Dec	AirAsia X
01 Dec - 11 Dec	Thai Airways
17 Dec - 06 Jan	Air China
08 Dec - 23 Dec	AirAsia X
30 Dec - 08 Jan	Pegasus Airlines
10 Dec - 18 Dec	Air China
12 Dec - 21 Dec	Flynas
15 Dec - 15 Jan	Air Arabia
15 Dec - 24 Dec	Air Arabia
18 Dec - 31 Dec	Flynas
29 Dec - 11 Jan	Pegasus Airlines
21 Dec - 11 Jan	flyadeal
03 Dec - 26 Dec	AirAsia X
06 Dec - 20 Dec	Flynas
23 Dec - 10 Jan	flyadeal
15 Dec - 06 Jan	flyadeal
29 Dec - 05 Jan	Pegasus Airlines
20 Dec - 11 Jan	flyadeal
20 Dec - 12 Jan	flyadeal

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 501€

Return flights