Cheapest one-way flights from Washington to Seoul in November from $387

AirHint found the following cheapest one-way flights from Washington (IAD) to Seoul (ICN) in November 2025 (see full year).

One-Way flights

25 Nov Frontier Airlines
14 Nov Frontier Airlines
22 Nov Frontier Airlines
11 Nov Turkish Airlines
20 Nov Allegiant Air
21 Nov Air Canada
25 Nov Korean Air direct
20 Nov Korean Air direct
12 Nov Korean Air direct
11 Nov Korean Air direct

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

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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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