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

Return flights

24 Oct - 02 Nov	Pegasus Airlines
01 Oct - 15 Oct	AJet
10 Oct - 19 Oct	AJet
07 Oct - 09 Oct	Pegasus Airlines
01 Oct - 15 Oct	AJet	direct
02 Oct - 08 Oct	AJet	direct
01 Oct - 07 Oct	AJet	direct
01 Oct - 08 Oct	AJet	direct
30 Oct - 01 Nov	AJet
01 Oct - 09 Oct	AJet	direct
02 Oct - 09 Oct	AJet	direct
21 Oct - 28 Oct	AJet	direct
29 Oct - 02 Nov	AJet	direct
01 Oct - 12 Nov	AJet	direct
29 Oct - 09 Nov	Pegasus Airlines	direct
14 Oct - 04 Nov	Pegasus Airlines
30 Oct - 02 Nov	Pegasus Airlines
14 Oct - 04 Nov	Pegasus Airlines	direct
26 Oct - 10 Nov	Wizz Air UK
26 Oct - 02 Nov	Wizz Air UK

Also check the deals for one-way flights from Istanbul to Frankfurt 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 Istanbul to Frankfurt in October from 109€

Return flights