SEA → ICNSeattle to Seoul

live

Direct flights from Seattle (SEA) to Seoul (ICN): 24 nonstop departures observed each week across 4 airlines. 100% of the last 10 operated flights arrived within 15 minutes of schedule. The median arrival is 14 minutes early. No cancellations were recorded across the 10 tracked flights. The nonstop covers 8,374 km, an estimated 11 hours 14 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Seoul. Updated 16 October 2026 at 01:22 UTC.

Today, SEA → ICN

Thu 15 Oct · local times
  1. 12:50 KE42KOREAN AIRLINES Departed ICN est. 16:42In the air · sched 16:40
  2. 13:00 DL197DELTA AIR LINES Departed ICN est. 16:36In the air · sched 16:50
  3. 13:35 AS119Alaska Airlines Departed ICN 17:30In the air · scheduled landing

Checked SEA board 18:22 · ICN board 10:20

SEA Seattle smooth · +14
ICN Seoul smooth · +4
8,374 km · ~11h 14m est.
dep bank 00:10–13:3524x weekly
Runs reliable · 4 airlines · 24x weekly · nonstop
100% on time

of the last 10 operated SEA → ICN flights arrived within 15 minutes

Median arrival delay is −14 min. 0 of 10 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−14 minacross the last 10 operated legs
Flight time~11h 14mestimated from route distance
Weekly departures24x4 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 10

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesAsiana AirlinesDelta Air LinesKorean Air

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS

Flights AS119 13:35 We Th Fr Sa Su

Asiana AirlinesOZ

Flights OZ271 00:10 Mo Tu We Fr Sa

Delta Air LinesDL

Flights DL197 13:00 daily

Korean AirKE100% on time

Flights KE48 00:10 Tu We · KE42 12:50 daily

History

operated legs · board outcomes
10-15DL197arrived−14
10-15KE42arrived+2
10-14AS119arrived+9
10-14DL197arrived−13
10-14KE42arrived−11
10-14KE48arrived−14
10-13DL197arrived−21
10-13KE42arrived−20
10-13KE48arrived−24
10-12OZ271arrived−49

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +14 min smooth 🌤 scattered clouds · NW 4 kt Full SEA delay board →
ICNSeoul +4 min smooth Full ICN delay board →

How the Seattle to Seoul route actually runs

Pro Flight Search records official board updates for nonstop SEA to ICN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seattle (SEA) to Seoul (ICN) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SEA-ICN
How we measure this →

SEA to ICN questions

Is SEA–ICN running on time right now?

Smooth skies ahead. The departure side at SEA is the weaker end, route health score 87/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–ICN?

Operators schedule morning departures around 00:10 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ICN delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to ICN?

Great-circle distance is 8,374 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 621–748 min gate-to-gate on this route.

How often does SEA–ICN fly?

4 carriers operate this route, around 26 flights a week between them. Compare carrier days and times in the airline list above.