Cheapest return flights from Portland to Seoul in March from $793

AirHint found the following cheapest return flights from Portland (PDX) to Seoul (ICN) in March 2026 (see full year).

Return flights

09 Mar - 19 Mar Air Canada
17 Mar - 21 Apr Air Canada
10 Mar - 14 Apr Air Canada
11 Mar - 25 Mar Air Canada
14 Mar - 18 Mar Alaska Airlines
27 Mar - 03 Apr Air Canada
12 Mar - 31 Mar Alaska Airlines
26 Mar - 02 Apr Air Canada
19 Mar - 26 Mar Air Canada
13 Mar - 23 Mar Frontier Airlines
18 Mar - 31 Mar United
26 Mar - 29 Mar Alaska Airlines

Also check the deals for one-way flights from Portland to Seoul in March.

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