UA4045 HoustonIAH · 20:05 BirminghamBHM · 21:59
UA4045 by United Airlines flies from Houston (IAH) to Birmingham (BHM) for the Sun, Oct 18 departure.
estimated arrival at BHM · local time · past this estimate · waiting on the board
board checked 24m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 20:04.
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAH and BHM 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.
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 Houston to Birmingham flights today
same route · United AirlinesIf UA4045 is cancelled, these are the other United Airlines nonstop flights from Houston to Birmingham on the same day, with scheduled departure times in IAH local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4045 actually runs
Pro Flight Search has tracked every published board update for UA4045 across the IAH and BHM boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: departed -1 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4045 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 IAH and BHM published them.
Planning around UA4045? 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 — UA4045 Houston to Birmingham on-time performance, measured from the IAH and BHM airport boards.
https://proflightsearch.com/flight/UA4045
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