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

Return flights

31 Oct - 27 Nov	Wizz Air Malta
30 Oct - 06 Nov	Wizz Air Malta
31 Oct - 09 Nov	Wizz Air Malta
30 Oct - 01 Nov	Ryanair
29 Oct - 01 Nov	Wizz Air Malta
30 Oct - 02 Nov	Wizz Air
27 Oct - 04 Nov	Wizz Air
24 Oct - 26 Oct	Wizz Air
24 Oct - 19 Nov	Wizz Air
24 Oct - 27 Oct	Wizz Air
27 Oct - 31 Oct	Wizz Air
24 Oct - 03 Nov	Wizz Air
28 Oct - 12 Nov	Wizz Air
24 Oct - 25 Oct	Wizz Air
25 Oct - 28 Oct	Wizz Air
26 Oct - 28 Oct	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 170€

Return flights