UA6143 HoustonIAH · 12:20 JacksonvilleJAX · 15:39
UA6143 by United Airlines flies from Houston (IAH) to Jacksonville (JAX) for the Thu, Oct 22 departure.
departs IAH · on schedule
board checked 2m 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 boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAH and JAX 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 Jacksonville flights today
same route · United AirlinesIf UA6143 is cancelled, these are the other United Airlines nonstop flights from Houston to Jacksonville 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 UA6143 actually runs
Pro Flight Search has tracked every published board update for UA6143 across the IAH and JAX boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left heavily delayed (~72 min) but landed heavily delayed (~48 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how UA6143 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N86334.
Board clocks recorded as IAH and JAX published them.
Planning around UA6143? 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 — UA6143 Houston to Jacksonville on-time performance, measured from the IAH and JAX airport boards.
https://proflightsearch.com/flight/UA6143
.