UA540 DenverDEN · 19:05 ChicagoORD · 20:36
UA540 by United Airlines flies from Denver (DEN) to Chicago (ORD) for the Fri, Nov 13 departure.
Same number through DEN → SAN → ORD
today's DEN → ORD operation will not depart
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DEN and ORD are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow at Denver
ForecastSun 15 Nov, local date
- 38% chance of fog
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at San Diego
ForecastSun 15 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · 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.
Other Denver to Chicago flights today
same route · United AirlinesIf UA540 is cancelled, these are the other United Airlines nonstop flights from Denver to Chicago on the same day, with scheduled departure times in DEN local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How UA540 actually runs
Pro Flight Search has tracked every published board update for UA540 across the DEN and ORD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 62.0/100. Based on airport operations, weather, and cached board history at DEN and ORD.
The verdict above is that record speaking, so it reflects how UA540 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: N24526, N14533.
Board clocks recorded as DEN and ORD published them.
Planning around UA540? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: UA540 Denver to Chicago on-time performance, measured from the DEN and ORD airport boards.
https://proflightsearch.com/flight/UA540
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