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

Return flights

02 Dec - 12 Dec	Air China
25 Dec - 09 Jan	Air China
31 Dec - 11 Jan	VietJet Air
12 Dec - 08 Jan	VietJet Air
30 Dec - 06 Jan	Thai Airways
27 Dec - 31 Dec	Thai Airways
27 Dec - 04 Jan	Thai Airways
26 Dec - 01 Jan	Thai Airways
19 Dec - 27 Dec	Emirates
30 Dec - 06 Jan	Turkish Airlines	direct
31 Dec - 11 Jan	Turkish Airlines	direct
25 Dec - 09 Jan	Turkish Airlines	direct
12 Dec - 08 Jan	Turkish Airlines	direct
02 Dec - 12 Dec	Turkish Airlines	direct
01 Dec - 01 Dec	Emirates
19 Dec - 27 Dec	Turkish Airlines	direct

Also check the deals for one-way flights from Hanoi to Istanbul 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 Hanoi to Istanbul in December from $535

Return flights