UA1577 ChicagoORD · 14:30 San DiegoSAN · 17:25
UA1577 by United Airlines flies from Chicago (ORD) to San Diego (SAN) for the Tue, Nov 3 departure.
Same number through ORD → SFO → SAN
departs ORD · on schedule
board checked 5m ago · checking again in 45s
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by SAN (San Diego), currently flying MVFR (marginal visual). 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 Chicago
ForecastWed 4 Nov, local date
- 97% chance of rain
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 Francisco
ForecastWed 4 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 Chicago to San Diego flights today
same route · United AirlinesIf UA1577 is cancelled, these are the other United Airlines nonstop flights from Chicago to San Diego on the same day, with scheduled departure times in ORD 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 UA1577 actually runs
Pro Flight Search has tracked every published board update for UA1577 across the ORD and SAN boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left noticeably late (~22 min) but landed a little late (~11 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how UA1577 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 SAN published them.
Planning around UA1577? 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: UA1577 Chicago to San Diego on-time performance, measured from the ORD and SAN airport boards.
https://proflightsearch.com/flight/UA1577
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