Cheapest return flights from Frankfurt to Istanbul in September from $164

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

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

Return flights

05 Sep - 03 Oct Wizz Air Malta
05 Sep - 03 Oct AJet direct
19 Sep - 26 Sep AJet direct
19 Sep - 30 Sep AJet direct
06 Sep - 24 Sep AJet direct
06 Sep - 20 Sep AJet direct
20 Sep - 27 Sep AJet direct
01 Sep - 30 Sep AJet direct
05 Sep - 26 Sep AJet direct
06 Sep - 27 Sep AJet direct
22 Sep - 27 Sep AJet direct
05 Sep - 25 Sep AJet direct
09 Sep - 02 Oct AJet direct
11 Sep - 02 Oct AJet direct
22 Sep - 02 Oct AJet direct
25 Sep - 02 Oct Pegasus Airlines direct
30 Sep - 02 Oct Air Serbia
09 Sep - 23 Oct Air Serbia
30 Sep - 02 Oct Pegasus Airlines direct
13 Sep - 04 Oct AJet direct

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