UA3870 Chicago/RockfordRFD ChicagoORD · 02:07
UA3870 by United Airlines flies from Chicago/Rockford (RFD) to Chicago (ORD).
scheduled from RFD
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How UA3870 actually runs
Pro Flight Search has tracked every published board update for UA3870 across the RFD and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed -10 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA3870 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 RFD and ORD published them.
Planning around UA3870? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA3870 Chicago/Rockford to Chicago on-time performance, measured from the RFD and ORD airport boards.
https://proflightsearch.com/flight/UA3870
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