AirHint found the following cheapest return flights from Houston (HOU) to Seoul (ICN) in May 2026 (see full year).
Return flights
| 11 May - 15 Jun | WestJet | ||
| 14 May - 29 May | WestJet | ||
| 18 May - 01 Jun | WestJet |
Also check the deals for one-way flights from Houston to Seoul in May.
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