Cheapest one-way flights from Frankfurt to Istanbul in September from $87
AirHint found the following cheapest one-way flights from Frankfurt (FRA) to Istanbul (IST) in September 2025 (see full year).
One-Way flights
| 15 Sep | Wizz Air | ||
| 02 Sep | AJet | direct | |
| 03 Sep | AJet | direct | |
| 20 Sep | AJet | direct | |
| 07 Sep | AJet | direct | |
| 05 Sep | AJet | direct | |
| 16 Sep | AJet | direct | |
| 12 Sep | AJet | direct | |
| 14 Sep | AJet | direct | |
| 13 Sep | AJet | direct |
Also check the deals for return flights from Frankfurt to Istanbul in September.
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.
