UA5566 St LouisSTL HoustonIAH
UA5566 by United Airlines flies from St Louis (STL) to Houston (IAH).
scheduled from STL
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions 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.
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 UA5566 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 UA5566 actually runs
Pro Flight Search has tracked every published board update for UA5566 across the STL and IAH boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at STL and IAH.
The verdict above is that record speaking, so it reflects how UA5566 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around UA5566? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA5566 St Louis to Houston on-time performance, measured from the STL and IAH airport boards.
https://proflightsearch.com/flight/UA5566
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