AirHint found the following cheapest return flights from Portland (PDX) to Seoul (ICN) in February 2026 (see full year).
Return flights
| 18 Feb - 26 Feb | Air Canada | ||
| 09 Feb - 14 Feb | United | ||
| 12 Feb - 05 Mar | Delta |
Also check the deals for one-way flights from Portland to Seoul in February.
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