UA4177 ChattanoogaCHA ChicagoORD · 20:19
UA4177 by United Airlines flies from Chattanooga (CHA) to Chicago (ORD).
scheduled from CHA
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsTomorrow at Chicago
ForecastMon 2 Nov, local date
- 82% chance of rain
- Chance a departure is cancelled
- 1.1%usually 0.7%
- Chance a departure leaves 60+ min late
- 14%usually 11%
Weather behind it: 82% chance of rain at Chicago
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 1,360 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How UA4177 actually runs
Pro Flight Search has tracked every published board update for UA4177 across the CHA and ORD boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 2/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4177 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 CHA and ORD published them.
Planning around UA4177? 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: UA4177 Chattanooga to Chicago on-time performance, measured from the CHA and ORD airport boards.
https://proflightsearch.com/flight/UA4177
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