AirHint found the following cheapest return flights from Chicago (ORD) to Zagreb (ZAG) in January 2026 (see full year).
Return flights
| 20 Jan - 26 Jan | Air France | ||
| 17 Jan - 31 Jan | Delta | ||
| 14 Jan - 28 Jan | Delta | ||
| 04 Jan - 24 Jan | Turkish Airlines |
Also check the deals for one-way flights from Chicago to Zagreb in January.
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