AirHint found the following cheapest return flights from Rio Negro (MDE) to Sydney (SYD) in December 2025 (see full year).
Return flights
| 12 Dec - 30 Jan | United | ||
| 11 Dec - 06 Jan | Spirit Airlines | ||
| 26 Dec - 09 Jan | Avianca | ||
| 04 Dec - 05 Jan | LATAM Airlines Group | ||
| 18 Dec - 09 Jan | LATAM Airlines Group |
Also check the deals for one-way flights from Rio Negro to Sydney in December.
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