UA4638 ChicagoORD · 19:45 Colorado SpringsCOS
UA4638 by United Airlines flies from Chicago (ORD) to Colorado Springs (COS) for the Mon, Sep 21 departure.
departs ORD · on schedule
board checked 24m ago · checking again in 45s
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 Colorado Springs flights today
same route · United AirlinesIf UA4638 is cancelled, this is the other United Airlines nonstop flight from Chicago to Colorado Springs 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 UA4638 actually runs
Pro Flight Search has tracked every published board update for UA4638 across the ORD and COS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: departed +4 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4638 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 COS published them.
Planning around UA4638? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4638 Chicago to Colorado Springs on-time performance, measured from the ORD and COS airport boards.
https://proflightsearch.com/flight/UA4638
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