Cheapest return flights from Washington to Seoul in April from $1152

AirHint found the following cheapest return flights from Washington (DCA) to Seoul (ICN) in April 2026 (see full year).

Return flights

13 Apr - 20 May Air Canada
22 Apr - 08 May Air Canada
11 Apr - 25 Apr Air Canada
15 Apr - 08 May Hawaiian Airlines
07 Apr - 23 Apr Cathay Pacific
04 Apr - 18 Apr Hawaiian Airlines
10 Apr - 24 Apr Cathay Pacific
10 Apr - 17 Apr Cathay Pacific
22 Apr - 24 Apr Alaska Airlines
10 Apr - 19 Apr Cathay Pacific
01 Apr - 08 Apr Cathay Pacific
01 Apr - 29 Apr Cathay Pacific
03 Apr - 15 Apr Air Canada

Also check the deals for one-way flights from Washington to Seoul in April.

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