AirHint found the following cheapest return flights from Houston (HOU) to Seoul (ICN) in January 2026 (see full year).
Return flights
| 22 Jan - 29 Jan | Zipair | ||
| 20 Jan - 05 Feb | Frontier Airlines | ||
| 04 Jan - 12 Jan | Spirit Airlines | ||
| 01 Jan - 15 Jan | Viva | ||
| 01 Jan - 08 Jan | Zipair | ||
| 05 Jan - 08 Jan | Spirit Airlines |
Also check the deals for one-way flights from Houston to Seoul in January.
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