UA4003 MemphisMEM HoustonIAH
UA4003 by United Airlines flies from Memphis (MEM) to Houston (IAH).
scheduled from MEM
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at MEM and IAH are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Memphis to Houston flights today
same route · United AirlinesIf UA4003 is cancelled, these are the other United Airlines nonstop flights from Memphis to Houston on the same day, with scheduled departure times in MEM local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4003 actually runs
Pro Flight Search has tracked every published board update for UA4003 across the MEM and IAH boards: schedule changes, gate pushes and actual clocks. Combined risk score: 9.8/100. Based on airport operations, weather, and cached board history at MEM and IAH.
The verdict above is that record speaking, so it reflects how UA4003 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around UA4003? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4003 Memphis to Houston on-time performance, measured from the MEM and IAH airport boards.
https://proflightsearch.com/flight/UA4003
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