UA4631 AspenASE ChicagoORD · 12:29
UA4631 by United Airlines flies from Aspen (ASE) to Chicago (ORD).
tracked route ASE → ORD
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 operationmedian arrival −23 min · 0 cancelled · 7 operations tracked
The route today
live boardsTomorrow at Chicago
ForecastSun 1 Nov, local date
- Chance a departure is cancelled
- 0.6%usually 0.7%
- Chance a departure leaves 60+ min late
- 9.9%usually 12%
Forecast: WeatherTomorrow · 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.
How UA4631 actually runs
Pro Flight Search has tracked every published board update for UA4631 across the ASE and ORD boards: schedule changes, gate pushes and actual clocks. Usually lands ~23 min early. Based on 7 confirmed landings · 7/7 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4631 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 ASE and ORD published them.
Planning around UA4631? 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: UA4631 Aspen to Chicago on-time performance, measured from the ASE and ORD airport boards.
https://proflightsearch.com/flight/UA4631
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