AirHint found the following cheapest return flights from Portland (PDX) to Istanbul (SAW) in May 2026 (see full year).
Return flights
| 14 May - 27 May | KLM | ||
| 27 May - 03 Jun | Icelandair | ||
| 05 May - 10 Jun | Icelandair | ||
| 01 May - 13 May | KLM | ||
| 01 May - 18 May | KLM |
Also check the deals for one-way flights from Portland to Istanbul in May.
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