AirHint found the following cheapest return flights from Tallinn (TLL) to Chicago (ORD) in December 2025 (see full year).
Return flights
| 26 Dec - 01 Jan | Lufthansa | ||
| 23 Dec - 01 Jan | Scandinavian Airlines | ||
| 24 Dec - 01 Jan | Scandinavian Airlines | ||
| 25 Dec - 01 Jan | Scandinavian Airlines | ||
| 26 Dec - 02 Jan | Turkish Airlines | ||
| 29 Dec - 03 Jan | Lufthansa |
Also check the deals for one-way flights from Tallinn to Chicago in December.
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