Cheapest one-way flights from Washington to Seoul in April from 388€

AirHint found the following cheapest one-way flights from Washington (IAD) to Seoul (ICN) in April 2026 (see full year).

One-Way flights

14 Apr Air China
24 Apr Air China
03 Apr Frontier Airlines
27 Apr Turkish Airlines
26 Apr Turkish Airlines
20 Apr Turkish Airlines
11 Apr Etihad Airways
29 Apr Alaska Airlines
30 Apr Turkish Airlines
10 Apr Turkish Airlines

Also check the deals for return flights from Washington to Seoul in April.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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