AirHint found the following cheapest return flights from Seoul (ICN) to Guatemala City (GUA) in December 2025 (see full year).
Return flights
| 05 Dec - 05 Jan | Aeromexico | ||
| 18 Dec - 14 Jan | Eastar Jet | ||
| 19 Dec - 18 Jan | Aeromexico | ||
| 01 Dec - 05 Dec | Singapore Airlines | ||
| 21 Dec - 31 Dec | Delta |
Also check the deals for one-way flights from Seoul to Guatemala City in December.
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