AirHint found the following cheapest return flights from Frankfurt (FRA) to Istanbul (IST) in December 2026 (see full year).

Return flights

24 Dec - 09 Jan	TAROM
29 Dec - 12 Jan	Air France
22 Dec - 25 Dec	Lufthansa	direct
22 Dec - 06 Jan	Air France
21 Dec - 26 Dec	Lufthansa	direct
25 Dec - 02 Jan	LOT
29 Dec - 12 Jan	Lufthansa	direct
25 Dec - 02 Jan	Lufthansa	direct
22 Dec - 06 Jan	Lufthansa	direct
18 Dec - 29 Dec	Turkish Airlines	direct
20 Dec - 30 Dec	Turkish Airlines
16 Dec - 05 Jan	Aegean Airlines
19 Dec - 08 Jan	Lufthansa

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Istanbul in December from 195€

Return flights