UA4903 HoustonIAH · 10:35 Knoxville/MaryvilleTYS
UA4903 by United Airlines flies from Houston (IAH) to Knoxville/Maryville (TYS) for the Sun, Nov 8 departure.
en route from IAH to TYS
board checked 32m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 10:30.
The route today
live boardsTomorrow at Houston
ForecastMon 9 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Houston to Knoxville/Maryville flights today
same route · United AirlinesIf UA4903 is cancelled, these are the other United Airlines nonstop flights from Houston to Knoxville/Maryville on the same day, with scheduled departure times in IAH local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How UA4903 actually runs
Pro Flight Search has tracked every published board update for UA4903 across the IAH and TYS boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: departed -5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4903 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 TYS published them.
Planning around UA4903? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: UA4903 Houston to Knoxville/Maryville on-time performance, measured from the IAH and TYS airport boards.
https://proflightsearch.com/flight/UA4903
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