AirHint found the following cheapest return flights from Phoenix (PHX) to Santiago (SCL) in December 2025 (see full year).
Return flights
| 11 Dec - 18 Dec | American Airlines | ||
| 12 Dec - 20 Dec | American Airlines | ||
| 22 Dec - 31 Dec | LATAM Airlines Group | ||
| 13 Dec - 01 Jan | Frontier Airlines |
Also check the deals for one-way flights from Phoenix to Santiago in December.
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