AirHint found the following cheapest one-way flights from Phoenix (PHX) to Seoul (ICN) in December 2025 (see full year).
One-Way flights
| 07 Dec | Frontier Airlines | ||
| 04 Dec | Delta | ||
| 24 Dec | United | ||
| 30 Dec | Delta | ||
| 25 Dec | United | ||
| 23 Dec | Air Canada | ||
| 22 Dec | United |
Also check the deals for return flights from Phoenix to Seoul in December.
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