AirHint found the following cheapest return flights from Redmond-Bend (RDM) to Portland (PDX) in December 2025 (see full year).
Return flights
| 13 Dec - 15 Dec | Alaska Airlines | direct | |
| 06 Dec - 09 Dec | Delta | ||
| 30 Dec - 06 Jan | Delta | ||
| 30 Dec - 06 Jan | Hawaiian Airlines | direct |
Also check the deals for one-way flights from Redmond-Bend to Portland in December.
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