Cheapest return flights from Portland to Frankfurt in December from $540

AirHint found the following cheapest return flights from Portland (PDX) to Frankfurt (FRA) in December 2025 (see full year).

Return flights

25 Dec - 17 Jan Lufthansa
04 Dec - 12 Dec Alaska Airlines
25 Dec - 10 Jan Condor
29 Dec - 05 Jan Icelandair
16 Dec - 12 Jan United
14 Dec - 29 Dec Alaska Airlines
29 Dec - 02 Jan Icelandair
15 Dec - 02 Jan Delta

Also check the deals for one-way flights from Portland to Frankfurt in December.

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