UA3920 WashingtonIAD HoustonIAH · 11:51
UA3920 by United Airlines flies from Washington (IAD) to Houston (IAH).
scheduled from IAD
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at IAD 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 Washington to Houston flights today
same route · United AirlinesIf UA3920 is cancelled, these are the other United Airlines nonstop flights from Washington to Houston on the same day, with scheduled departure times in IAD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA3920 actually runs
Pro Flight Search has tracked every published board update for UA3920 across the IAD and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed -41 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA3920 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 IAD and IAH published them.
Planning around UA3920? 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 — UA3920 Washington to Houston on-time performance, measured from the IAD and IAH airport boards.
https://proflightsearch.com/flight/UA3920
.