Cheapest one-way IAD–ICN flights, July

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

One-Way flights

21 Jul Frontier Airlines
22 Jul Frontier Airlines
13 Jul Alaska Airlines
10 Jul Frontier Airlines
31 Jul Frontier Airlines
08 Jul Frontier Airlines
25 Jul Turkish Airlines
31 Jul Air Premia direct
29 Jul Air Premia direct
24 Jul WestJet

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

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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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