AirHint found the following cheapest return flights from Chicago (MDW) to Vilnius (VNO) in December 2025 (see full year).
Return flights
| 16 Dec - 30 Dec | Frontier Airlines | ||
| 19 Dec - 02 Jan | Frontier Airlines | ||
| 28 Dec - 12 Jan | Delta | ||
| 24 Dec - 30 Dec | Delta | ||
| 24 Dec - 29 Dec | Delta | ||
| 24 Dec - 07 Jan | Delta | ||
| 23 Dec - 30 Dec | Delta | ||
| 23 Dec - 29 Dec | Delta |
Also check the deals for one-way flights from Chicago to Vilnius in December.
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