AirHint found the following cheapest return flights from Portland (PDX) to Frankfurt (FRA) in May 2026 (see full year).
Return flights
| 03 May - 10 May | Condor | ||
| 04 May - 11 May | Condor | ||
| 23 May - 08 Jun | Condor | direct | |
| 08 May - 28 May | Condor | ||
| 29 May - 12 Jun | Icelandair | ||
| 14 May - 18 May | Condor | ||
| 01 May - 11 May | KLM | ||
| 06 May - 17 May | Delta |
Also check the deals for one-way flights from Portland to Frankfurt in May.
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