UA3012 MiamiMIA ChicagoORD
UA3012 by United Airlines flies from Miami (MIA) to Chicago (ORD).
scheduled from MIA
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at MIA and ORD are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Miami to Chicago flights today
same route · United AirlinesIf UA3012 is cancelled, these are the other United Airlines nonstop flights from Miami to Chicago on the same day, with scheduled departure times in MIA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA3012 actually runs
Pro Flight Search has tracked every published board update for UA3012 across the MIA and ORD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 16.3/100. Based on airport operations, weather, and cached board history at MIA and ORD.
The verdict above is that record speaking, so it reflects how UA3012 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around UA3012? 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 — UA3012 Miami to Chicago on-time performance, measured from the MIA and ORD airport boards.
https://proflightsearch.com/flight/UA3012
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