Seoul to Seattle (ICN-SEA): nonstop upgrade & award space

Alaska Airlines, Korean Air, Asiana Airlines, and Delta Air Lines fly nonstop between Seoul (ICN) and Seattle (SEA), roughly 31 times a week. Long-haul cabins on a corridor this busy are large but never idle: premium cabin inventory reshuffles around every schedule change, and the best dates go first. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, on every ICN to SEA departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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31
Nonstop flights a week
5,204 mi
Nonstop distance
Free
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Seoul to Seattle flight schedule

Scheduled nonstop departures for ICN to SEA, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Seoul (ICN) to Seattle (SEA)
Date Flight Airline Departs ICN Arrives SEA Duration Aircraft
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
OZ 272Asiana Airlines21:2015:159h 55m77L
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
AS 120Alaska Airlines, Inc.19:3513:4010h 5m789
AS 172Alaska Airlines, Inc.19:3513:4010h 5m789
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
AS 120Alaska Airlines, Inc.19:3513:4010h 5m789
AS 172Alaska Airlines, Inc.19:3513:4010h 5m789
OZ 272Asiana Airlines21:2015:159h 55m77L
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
AS 120Alaska Airlines, Inc.19:3513:4010h 5m789
AS 172Alaska Airlines, Inc.19:3513:4010h 5m789
OZ 272Asiana Airlines21:2015:159h 55m77L
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
AS 120Alaska Airlines, Inc.19:3513:4010h 5m789
AS 172Alaska Airlines, Inc.19:3513:4010h 5m789
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
AS 120Alaska Airlines, Inc.19:3513:4010h 5m789
AS 172Alaska Airlines, Inc.19:3513:4010h 5m789
OZ 272Asiana Airlines21:2015:159h 55m77L
KE 41Korean Air16:4010:4010h781
DL 196Delta Air Lines19:0013:3710h 37m359
AS 120Alaska Airlines, Inc.19:3513:4010h 5m789
AS 172Alaska Airlines, Inc.19:3513:4010h 5m789
OZ 272Asiana Airlines21:2015:159h 55m77L

Showing all 31 scheduled ICN to SEA departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every ICN to SEA date on the interactive map

Confirmed upgrade & award space on ICN to SEA departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, segment by segment and date by date. Open the calendar for Seoul to Seattle to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each ICN to SEA departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See ICN to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seoul to Seattle nonstop

Carriers operating ICN to SEA nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See ICN to SEA on the interactive map →

Frequently asked questions about ICN to SEA

How far is Seattle from Seoul?
ICN to SEA covers about 5,204 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from ICN to SEA?
Alaska Airlines, Korean Air, Asiana Airlines, and Delta Air Lines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines.
How many flights a week are there from ICN to SEA?
About 31 nonstop flights a week run between Seoul and Seattle in the current schedule, operated by Alaska Airlines, Korean Air, Asiana Airlines, and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from ICN to SEA depart?
Scheduled ICN to SEA nonstops in the next 7 days with service leave between 16:40 and 21:20, local time at Seoul. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on ICN to SEA?
Open the ICN to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines and Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss ICN to SEA upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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