AirHint found the following cheapest one-way flights from Washington (IAD) to Seoul (ICN) in June 2026 (see full year).
One-Way flights
| 05 Jun | WestJet | ||
| 01 Jun | Alaska Airlines | ||
| 28 Jun | SWISS | ||
| 02 Jun | Frontier Airlines | ||
| 30 Jun | SWISS | ||
| 03 Jun | Porter Airlines (Canada) Ltd | ||
| 25 Jun | SWISS | ||
| 26 Jun | SWISS | ||
| 21 Jun | SWISS | ||
| 19 Jun | SWISS |
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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