Cheapest one-way flights from Washington to Seoul in December from 424€

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

One-Way flights

06 Dec Frontier Airlines
02 Dec Porter Airlines (Canada) Ltd
08 Dec Turkish Airlines
30 Dec Turkish Airlines
29 Dec Turkish Airlines
10 Dec Turkish Airlines
11 Dec Turkish Airlines
26 Dec Alaska Airlines
12 Dec Turkish Airlines
15 Dec Frontier Airlines

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

Skyscanner

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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