UA1803 ChicagoORD · 11:08 Las VegasLAS · 13:14
UA1803 by United Airlines flies from Chicago (ORD) to Las Vegas (LAS) for the Wed, Sep 16 departure.
arrived at LAS · 2 min early
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by ORD (Chicago), currently flying MVFR (marginal visual). For this route and airline, 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 →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Chicago to Las Vegas flights today
same route · United AirlinesIf UA1803 is cancelled, these are the other United Airlines nonstop flights from Chicago to Las Vegas on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA1803 actually runs
Pro Flight Search has tracked every published board update for UA1803 across the ORD and LAS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed -2 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA1803 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 LAS published them.
Planning around UA1803? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA1803 Chicago to Las Vegas on-time performance, measured from the ORD and LAS airport boards.
https://proflightsearch.com/flight/UA1803
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