UA2099 ChicagoORD · 09:25 SeattleSEA · 12:19
UA2099 by United Airlines flies from Chicago (ORD) to Seattle (SEA) for the Wed, Nov 11 departure.
estimated arrival at SEA · local time · ~2h 02m from now
board checked 8m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 09:16 · typical taxi-out at ORD ≈ 8.4 min. No receiver coverage over open ocean.
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ORD 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 Chicago
ForecastThu 12 Nov, local date
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
ForecastThu 12 Nov, local date
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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Chicago to Seattle flights today
same route · United AirlinesIf UA2099 is cancelled, these are the other United Airlines nonstop flights from Chicago to Seattle on the same day, with scheduled departure times in ORD 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 UA2099 actually runs
Pro Flight Search has tracked every published board update for UA2099 across the ORD and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs ~5 min early. Based on 4 confirmed departures · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA2099 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as ORD and SEA published them.
Planning around UA2099? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: UA2099 Chicago to Seattle on-time performance, measured from the ORD and SEA airport boards.
https://proflightsearch.com/flight/UA2099
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