UA4556 ChicagoORD · 12:45 MolineMLI
UA4556 by United Airlines flies from Chicago (ORD) to Moline (MLI) for the Mon, Aug 17 departure.
en route from ORD to MLI
board checked 63m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 17:26 · typical taxi-out at ORD ≈ 8.1 min.
Where the minutes go
last 7 operations · gate push → arrivalThe 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 operation0 cancelled · 8 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Chicago to Moline flights today
same route · United AirlinesIf UA4556 is cancelled, these are the other United Airlines nonstop flights from Chicago to Moline on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4556 actually runs
Pro Flight Search has tracked every published board update for UA4556 across the ORD and MLI boards: schedule changes, gate pushes and actual clocks. Usually departs ~18 min late. Based on 8 confirmed departures · 4/8 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4556 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N538GJ, N507GJ.
Board clocks recorded as ORD and MLI published them.
Planning around UA4556? 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 — UA4556 Chicago to Moline on-time performance, measured from the ORD and MLI airport boards.
https://proflightsearch.com/flight/UA4556
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