Cheapest return flights from Frankfurt to Istanbul in September from $149

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

Return flights

15 Sep - 24 Sep Pegasus Airlines direct
01 Sep - 30 Sep AJet direct
10 Sep - 18 Sep AJet direct
05 Sep - 19 Sep AJet direct
09 Sep - 19 Sep AJet direct
14 Sep - 19 Sep AJet direct
25 Sep - 01 Oct AJet direct
27 Sep - 01 Oct AJet direct
11 Sep - 18 Sep Pegasus Airlines direct
03 Sep - 25 Sep Pegasus Airlines direct
01 Sep - 01 Oct Pegasus Airlines direct
15 Sep - 17 Sep Pegasus Airlines direct
24 Sep - 28 Sep Pegasus Airlines direct
30 Sep - 05 Oct Air Serbia
18 Sep - 03 Oct Air Serbia
18 Sep - 03 Oct AJet direct
30 Sep - 05 Oct AJet direct

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

Powered by

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Feel free to contact us with any feedback or request another flight research.