Direct (nonstop) flights from Seoul to Seattle
5 airlines fly nonstop from Incheon International Airport (ICN) to Seattle Tacoma International (SEA). It's 5,217 miles (8,396 km), about 10h 3m in the air. Operated by Alaska Airlines, Delta Air Lines, Hawaiian Airlines and others.
Alaska Airlines
Delta Air Lines
Hawaiian Airlines
Korean Air
Asiana Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
HA
Hawaiian Airlines
OZ
Asiana Airlines
Alternative Routes
Other ways to fly from Seoul to Seattle with one stop · direct emits 798 kg CO₂ per passenger
Looking for the return flight?
SEA → ICN: Flights from Seattle to SeoulOther direct flights from Seoul
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Seoul to Seattle?
A nonstop flight from Seoul (ICN) to Seattle (SEA) takes approximately 10 hours and 3 minutes. The distance is 5,217 miles (8,396 km).
Which airlines fly nonstop from Seoul to Seattle?
5 airlines: Alaska Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air, Asiana Airlines.
Is there a nonstop flight from Seoul to Seattle?
Yes. 5 airlines: Alaska Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air, Asiana Airlines.
How far is Seoul from Seattle?
The flight distance from Seoul to Seattle is 5,217 miles (8,396 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Tokyo.
What is the time difference between Seoul and Seattle?
Seattle is 16 hours behind Seoul. (Asia/Seoul vs America/Los_Angeles.)
Will I experience jet lag flying from Seoul to Seattle?
Probably — 16-hour time difference means significant jet lag. Expect about 1 day of adjustment per hour of shift. Flying westward is generally easier to adjust to.
What type of aircraft flies from Seoul to Seattle?
At 10h 3m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from Republic of Korea to USA?
Depends on your passport. Check with the USA embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Seoul to Seattle?
Roughly 798 kg CO2 per passenger one-way. That's about the same as driving 3,990 km.
Is the return flight from Seattle to Seoul also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Seoul to Seattle?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Incheon International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.