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

Return flights

06 Oct - 22 Oct	AirAsia
22 Oct - 29 Oct	VietJet Air
07 Oct - 14 Oct	Thai AirAsia
16 Oct - 22 Oct	Qatar Airways
09 Oct - 15 Oct	Qatar Airways
01 Oct - 08 Oct	Qatar Airways
29 Oct - 16 Nov	Qatar Airways
01 Oct - 11 Oct	Qatar Airways
21 Oct - 27 Oct	Qatar Airways
21 Oct - 26 Oct	Qatar Airways
08 Oct - 11 Oct	Qatar Airways
31 Oct - 07 Nov	Qatar Airways
31 Oct - 08 Nov	Qatar Airways
23 Oct - 01 Nov	Qatar Airways

Also check the deals for one-way flights from Hanoi to Istanbul in October.

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 October from $567

Return flights