Cheapest one-way flights from Washington to Seoul in May from 478€

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

One-Way flights

03 May Etihad Airways
30 May Porter Airlines (Canada) Ltd
22 May Allegiant Air
24 May Porter Airlines (Canada) Ltd
11 May Turkish Airlines
08 May Turkish Airlines
29 May WestJet
13 May Turkish Airlines
28 May Air Canada
13 May Air Premia direct

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

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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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