AirHint found the following cheapest return flights from Bucharest (BBU) to Istanbul (IST) in October 2025 (see full year).

Return flights

11 Oct - 14 Oct	Wizz Air
11 Oct - 16 Oct	Wizz Air
21 Oct - 12 Nov	Wizz Air Malta
07 Oct - 14 Oct	Wizz Air
18 Oct - 20 Oct	Wizz Air
11 Oct - 15 Oct	Wizz Air Malta
04 Oct - 11 Oct	Wizz Air Malta
08 Oct - 11 Oct	Wizz Air Malta
06 Oct - 11 Oct	Wizz Air
16 Oct - 03 Nov	Wizz Air Malta
19 Oct - 25 Oct	Wizz Air
09 Oct - 12 Oct	Wizz Air
28 Oct - 02 Nov	Wizz Air

Also check the deals for one-way flights from Bucharest 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 Bucharest to Istanbul in October from 124€

Return flights