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

Return flights

08 Dec - 15 Dec	Condor
04 Dec - 11 Dec	Condor
10 Dec - 17 Dec	Lufthansa
01 Dec - 08 Dec	Condor
06 Dec - 13 Dec	Condor
11 Dec - 18 Dec	Air Canada
11 Dec - 23 Dec	British Airways
10 Dec - 21 Dec	Lufthansa
10 Dec - 22 Dec	United
24 Dec - 31 Dec	Condor
30 Dec - 06 Jan	Condor
25 Dec - 01 Jan	Condor
29 Dec - 05 Jan	Condor
25 Dec - 04 Jan	Scandinavian Airlines
27 Dec - 03 Jan	Condor

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Portland to Frankfurt in December from $620

Return flights