AirHint found the following cheapest return flights from Houston (HOU) to Seoul (ICN) in May 2026 (see full year).
Return flights
| 07 May - 17 May | WestJet | ||
| 16 May - 30 May | Alaska Airlines | ||
| 25 May - 18 Jun | WestJet | ||
| 18 May - 18 Jun | WestJet | ||
| 15 May - 05 Jun | Alaska Airlines | ||
| 15 May - 25 May | Alaska Airlines | ||
| 14 May - 26 May | Delta |
Also check the deals for one-way flights from Houston to Seoul in May.
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