Direct flights from Seattle to Seoul SEA → ICN
Air Incheon, Alaska Airlines, Asiana Airlines, Delta Air Lines, Korean Air and National Airlines operate nonstop flights from Seattle (SEA) to Seoul (ICN). The nonstop flight takes around ~10h 28m, covering 5,203 miles (8,373 km) and operates multiple daily. Round-trip fares currently start at $1131, with a typical fare around $1552 across 29 recent fare combinations. Updated 28 June 2026.
60-day flexibility overview based on 29 recent fares across the next 60 days
📬 Email me when fares drop
We'll check every combination in your window daily and email you the cheapest match. No account needed.
Air Incheon
KJ
Alaska Airlines
AS
Asiana Airlines
OZ
Delta Air Lines
DL
Korean Air
KE
National Airlines
N8
Departure Schedule next 7 days
Sign up to see Seoul schedule from SEA
Already have an account? Sign in
Frequently asked questions
Is there a direct flight from Seattle to Seoul?
Yes, Air Incheon, Alaska Airlines and 4 more airlines operate nonstop flights from Seattle (SEA) to Seoul (ICN).
Which airlines fly direct from Seattle to Seoul?
Air Incheon, Alaska Airlines, Asiana Airlines, Delta Air Lines, Korean Air, National Airlines operate nonstop flights from Seattle to Seoul.
How long is the flight from Seattle to Seoul?
The nonstop flight from Seattle to Seoul takes ~10h 28m (approximately 8373 km).
How often do direct flights operate from Seattle to Seoul?
Nonstop flights from Seattle to Seoul operate multiple daily.
How much is a round-trip flight from Seattle to Seoul?
Round-trip flights from Seattle (SEA) to Seoul (ICN) start at $1131, with a typical fare around $1552. Based on 29 recent fare combinations.