AirHint found the following cheapest one-way flights from Newark (EWR) to Cologne (CGN) in December 2025 (see full year).
One-Way flights
| 10 Dec | FrenchBee | ||
| 13 Dec | Spirit Airlines | ||
| 30 Dec | Lufthansa | ||
| 27 Dec | Lufthansa | ||
| 21 Dec | jetBlue | ||
| 20 Dec | Spirit Airlines | ||
| 17 Dec | United | ||
| 19 Dec | Lufthansa |
Also check the deals for return flights from Newark to Cologne in December.
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