AirHint found the following cheapest return flights from St. Louis (STL) to Zagreb (ZAG) in August 2026 (see full year).
Return flights
| 09 Aug - 28 Aug | Lufthansa | ||
| 30 Aug - 13 Sep | Lufthansa | ||
| 06 Aug - 04 Sep | Delta |
Also check the deals for one-way flights from St. Louis to Zagreb in August.
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