UA2101 SeattleSEA · 13:57 ChicagoORD · 20:18
UA2101 by United Airlines flies from Seattle (SEA) to Chicago (ORD) for the Wed, Sep 9 departure.
estimated arrival at ORD · local time · ~2h 59m from now
board checked 24m ago · checking again in 45s
Board estimate · gate and arrival times. No receiver coverage over open ocean.
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by ORD (Chicago), currently flying MVFR (marginal visual). For this route and airline, 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 →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seattle to Chicago flights today
same route · United AirlinesIf UA2101 is cancelled, these are the other United Airlines nonstop flights from Seattle to Chicago on the same day, with scheduled departure times in SEA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA2101 actually runs
Pro Flight Search has tracked every published board update for UA2101 across the SEA and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed -3 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA2101 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 SEA and ORD published them.
Planning around UA2101? 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 — UA2101 Seattle to Chicago on-time performance, measured from the SEA and ORD airport boards.
https://proflightsearch.com/flight/UA2101