UA4312 HoustonIAH · 20:25 MobileMOB
UA4312 by United Airlines flies from Houston (IAH) to Mobile (MOB) for the Fri, Sep 11 departure.
departs IAH · 6 min early
board checked 8m ago · checking again in 45s
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 boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Houston to Mobile flights today
same route · United AirlinesIf UA4312 is cancelled, these are the other United Airlines nonstop flights from Houston to Mobile 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 UA4312 actually runs
Pro Flight Search has tracked every published board update for UA4312 across the IAH and MOB boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: departed -7 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4312 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 MOB published them.
Planning around UA4312? 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 — UA4312 Houston to Mobile on-time performance, measured from the IAH and MOB airport boards.
https://proflightsearch.com/flight/UA4312