UA6156 St LouisSTL · 15:13 HoustonIAH · 17:25
UA6156 by United Airlines flies from St Louis (STL) to Houston (IAH) for the Sat, Aug 22 departure.
estimated arrival at IAH · local time · landing about now
board checked 32m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 15:25 · typical taxi-out at STL ≈ 5 min.
Where the minutes go
last 4 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
Early read, sample still buildingConditions at STL 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 St Louis to Houston flights today
same route · United AirlinesIf UA6156 is cancelled, these are the other United Airlines nonstop flights from St Louis to Houston on the same day, with scheduled departure times in STL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA6156 actually runs
Pro Flight Search has tracked every published board update for UA6156 across the STL and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left a little late (~12 min) but landed about 15 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA6156 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: N86347, N83329.
Board clocks recorded as STL and IAH published them.
Planning around UA6156? 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 — UA6156 St Louis to Houston on-time performance, measured from the STL and IAH airport boards.
https://proflightsearch.com/flight/UA6156
.