AirHint found the following cheapest one-way flights from San Francisco (SFO) to Istanbul (IST) in September 2026 (see full year).
One-Way flights
| 15 Sep | Alaska Airlines | ||
| 09 Sep | SWISS | ||
| 26 Sep | Qatar Airways | ||
| 15 Sep | Turkish Airlines | direct | |
| 09 Sep | Turkish Airlines | direct | |
| 28 Sep | Turkish Airlines | direct | |
| 26 Sep | Turkish Airlines | direct |
Also check the deals for return flights from San Francisco to Istanbul in September.
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