Are there direct flights from ICN to SEA?

Yes — weekly open route data lists a nonstop corridor from ICN to SEA.

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Open-data sketch · Verify independently · Baseline July 2026

Nonstop checker

Direct nonstop flight: Seoul (ICN) → Seattle (SEA)

Instant answer from weekly open route data — not live airline inventory.

Open route data (weekly)

YES — NONSTOP IN OPEN DATA

Weekly open route snapshot lists scheduled nonstop service: Alaska Airlines, Asiana Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air.

Carriers: Alaska Airlines, Asiana Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air

OriginDestination

Open route data (weekly)

YES — NONSTOP IN OPEN DATA

Weekly open route snapshot lists scheduled nonstop service: Alaska Airlines, Asiana Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air.

Carriers in open data (5)

Weekly open route data snapshot — not live airline inventory. Always verify with the carrier before booking.