AirHint found the following cheapest one-way flights from San Francisco (SFO) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 05 May | Air Canada | ||
| 10 May | Aer Lingus | ||
| 04 May | British Airways | ||
| 02 May | Frontier Airlines | ||
| 20 May | Aer Lingus | ||
| 09 May | FrenchBee | ||
| 31 May | SWISS | ||
| 30 May | Alaska Airlines | ||
| 16 May | FrenchBee | ||
| 14 May | FrenchBee |
Also check the deals for return flights from San Francisco to Istanbul in May.
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