AirHint found the following cheapest return flights from Miami (MIA) to Seoul (ICN) in December 2025 (see full year).
Return flights
| 01 Dec - 14 Dec | Air Canada | ||
| 10 Dec - 17 Dec | United | ||
| 18 Dec - 21 Dec | United | ||
| 11 Dec - 31 Dec | United | ||
| 10 Dec - 04 Jan | LEVEL | ||
| 10 Dec - 03 Jan | LEVEL | ||
| 19 Dec - 03 Jan | Frontier Airlines |
Also check the deals for one-way flights from Miami to Seoul in December.
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