Cheapest return flights from Istanbul to Frankfurt in September from $179

Best time to book flights for Istanbul (IST) to Frankfurt (FRA) flights at AirHint

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

Return flights

08 Sep - 15 Sep Lufthansa direct
29 Sep - 24 Oct Lufthansa direct
15 Sep - 17 Sep Lufthansa direct
18 Sep - 20 Sep Lufthansa direct
18 Sep - 21 Sep Lufthansa direct
29 Sep - 04 Oct Lufthansa direct
19 Sep - 26 Sep Lufthansa direct
19 Sep - 21 Sep Lufthansa direct
04 Sep - 11 Sep Lufthansa direct
17 Sep - 03 Oct Lufthansa direct
02 Sep - 14 Sep Pegasus Airlines
14 Sep - 27 Sep Lufthansa direct
05 Sep - 07 Sep Lufthansa direct
28 Sep - 03 Oct AJet
28 Sep - 03 Oct Lufthansa direct
24 Sep - 12 Oct SKY express
24 Sep - 05 Oct SKY express

Also check the deals for one-way flights from Istanbul to Frankfurt in September.

Skyscanner

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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