AS475Alaska Airlines · ONT → SEA
live · 47m ago
Route confirmed Alaska Airlines

AS475 OntarioONT · 11:13 SeattleSEA · 13:56

AS475 by Alaska Airlines flies from Ontario (ONT) to Seattle (SEA).

Right nowNext departure tomorrow Operates daily
11:13

scheduled from ONT

Typical gate push+4 minmedian posted departure

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-05
+3 gate
10-31
+4 gate
10-30
+7 gate
10-29
+3 gate
10-28
+11 gate
10-27
+7 gate
10-26
+3 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

0 cancelled · 7 operations tracked

The route today

live boards
ONTOntarioOn-time likelyONT delay board →
SEASeattleOn-time likelySEA delay board →
ONT→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
0.8%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at ONT and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Ontario

Forecast

Fri 6 Nov, local date

High27°Clikely 26°C to 28°C
Low13°Clikely 12°C to 15°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Seattle

Forecast

Fri 6 Nov, local date

High14°Clikely 13°C to 15°C
Low9°Clikely 8°C to 10°C
  • 97% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · 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.

Other Ontario to Seattle flights today

same route · Alaska Airlines
AS607departs 06:00
AS1570departs 08:30
AS1671departs 11:13
AS575departs 12:02
AS1679departs 14:13
AS571departs 16:09

If AS475 is cancelled, these are the other Alaska Airlines nonstop flights from Ontario to Seattle on the same day, with scheduled departure times in ONT local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How AS475 actually runs

Pro Flight Search has tracked every published board update for AS475 across the ONT and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 7 confirmed departures · 7/7 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how AS475 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-05ONT 11:13 11:16 (+3)SEA 13:56
10-31ONT 11:13 11:17 (+4)SEA 13:56
10-30ONT 11:13 11:20 (+7)SEA 13:56
10-29ONT 11:13 11:16 (+3)SEA 13:56
10-28ONT 11:13 11:24 (+11)SEA 13:56
10-27ONT 11:13 11:20 (+7)SEA 13:56
10-26ONT 11:13 11:16 (+3)SEA

Aircraft

Recent tails: N474AS, N486AS, N723AL, N579AS.

Board clocks recorded as ONT and SEA published them.

Planning around AS475? 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: AS475 Ontario to Seattle on-time performance, measured from the ONT and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS475
How we measure this →