Cheapest one-way flights from Washington to Seoul in June from $628

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

One-Way flights

25 Jun Sun Country Airlines
16 Jun Alaska Airlines
23 Jun Alaska Airlines
24 Jun Alaska Airlines
30 Jun Air Canada
26 Jun Alaska Airlines
22 Jun Air Canada
01 Jun Air Canada
06 Jun Air Canada
30 Jun Korean Air direct

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

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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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