Cheapest one-way flights from Washington to Seoul in May from $497

Best time to book flights for Washington (IAD) to Seoul (ICN) flights at AirHint

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

One-Way flights

07 May Alaska Airlines
06 May Alaska Airlines
03 May Air China
08 May Frontier Airlines
10 May Air India
24 May Porter Airlines (Canada) Ltd
09 May Air India
17 May Air India
22 May Porter Airlines (Canada) Ltd
16 May Air India

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

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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