UA4309 HoustonIAH · 20:24 BrownsvilleBRO
UA4309 by United Airlines flies from Houston (IAH) to Brownsville (BRO) for the Thu, Oct 22 departure.
departs IAH · on schedule
board checked 9m ago · checking again in 45s
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 Brownsville flights today
same route · United AirlinesIf UA4309 is cancelled, these are the other United Airlines nonstop flights from Houston to Brownsville 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 UA4309 actually runs
Pro Flight Search has tracked every published board update for UA4309 across the IAH and BRO boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +122 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4309 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 BRO published them.
Planning around UA4309? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4309 Houston to Brownsville on-time performance, measured from the IAH and BRO airport boards.
https://proflightsearch.com/flight/UA4309
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