AirHint found the following cheapest return flights from Riga (RIX) to Zagreb (ZAG) in September 2026 (see full year).
Return flights
| 26 Sep - 01 Oct | Lufthansa | ||
| 05 Sep - 09 Sep | Lufthansa | ||
| 12 Sep - 16 Sep | Lufthansa | ||
| 20 Sep - 24 Sep | Lufthansa | ||
| 13 Sep - 17 Sep | Lufthansa |
Also check the deals for one-way flights from Riga to Zagreb in September.
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