AirHint found the following cheapest one-way flights from Oakland (OAK) to Copenhagen (CPH) in December 2025 (see full year).
One-Way flights
| 01 Dec | Alaska Airlines | ||
| 11 Dec | Icelandair | ||
| 12 Dec | Alaska Airlines | ||
| 14 Dec | Alaska Airlines |
Also check the deals for return flights from Oakland to Copenhagen in December.
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