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

Return flights

06 Dec - 14 Dec	Air China
16 Dec - 23 Dec	China Eastern
05 Dec - 10 Dec	VietJet Air
01 Dec - 05 Dec	Qatar Airways
02 Dec - 09 Dec	Qatar Airways
06 Dec - 11 Dec	Qatar Airways
09 Dec - 13 Dec	Qatar Airways
08 Dec - 14 Dec	Qatar Airways
05 Dec - 14 Dec	Qatar Airways
25 Dec - 01 Jan	Qatar Airways
05 Dec - 28 Dec	Qatar Airways
25 Dec - 01 Jan	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 504€

Return flights