AS120Alaska Airlines · ICN → SEA
live · 5m ago
Route confirmed Alaska Airlines

AS120 SeoulICN · 20:00 SeattleSEA · 13:55

AS120 by Alaska Airlines flies from Seoul (ICN) to Seattle (SEA) for the Fri, Oct 30 departure.

Right nowIn the air to Seattle · off blocks 20:16 · 16 min late
13:43

estimated arrival at SEA · local time · ~8h 10m from now

LivePosition · updated 5m ago
ICN4,852 mi · ~8h 10m leftSEA
35,000 ftAltitudecruising
650 mphSpeed565 kt
112°Direction

Live position · flown path, last 1h 14m

Typical gate push+26 minmedian posted departure
Wins back in air~38 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 6 operations · gate push → arrival
0+30+60+90 min
10-30
+16 gate · −12 arrival
10-29
+25 gate
10-26
+21 gate
10-25
+27 gate
10-24
+45 gate
10-23
+53 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −12 min · 0 cancelled · 6 operations tracked

The route today

live boards
ICNSeoulModerate riskICN delay board →
SEASeattleHigh riskSEA delay board →
ICN→SEAevery carrier, schedules and on-time historyRoute intelligence →

Tomorrow at Seattle

Forecast

Sat 31 Oct, local date

High12°Clikely 10°C to 13°C
Low4°Clikely 2°C to 6°C
  • 32% chance of fog
Outlook: about usual
Chance a departure is cancelled
0.6%usually 0.7%
Chance a departure leaves 60+ min late
7.4%usually 9.6%

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 360 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

How AS120 actually runs

Pro Flight Search has tracked every published board update for AS120 across the ICN and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs ~26 min late. Based on 6 confirmed departures · 0/6 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how AS120 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-30ICN 20:00 20:16 (+16)SEA 13:55 13:43 (−12)
10-29ICN 20:00 20:25 (+25)SEA 13:55
10-26ICN 20:00 20:21 (+21)SEA 13:55
10-25ICN 20:00 20:27 (+27)SEA 13:55
10-24ICN 19:35 20:20 (+45)SEA 13:40
10-23ICN 19:35 20:28 (+53)SEA 13:40

Board clocks recorded as ICN and SEA published them.

Planning around AS120? 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: AS120 Seoul to Seattle on-time performance, measured from the ICN and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS120
How we measure this →