UA129 HoustonIAH · 19:55 Rio De JaneiroGIG · 08:15
UA129 by United Airlines flies from Houston (IAH) to Rio De Janeiro (GIG) for the Sat, Sep 12 departure.
departs IAH · on schedule
board checked 37m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at IAH and GIG 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 Houston to Rio De Janeiro flights today
same route · United AirlinesIf UA129 is cancelled, this is the other United Airlines nonstop flight from Houston to Rio De Janeiro 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 UA129 actually runs
Pro Flight Search has tracked every published board update for UA129 across the IAH and GIG boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: departed +6 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA129 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 GIG published them.
Planning around UA129? 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 — UA129 Houston to Rio De Janeiro on-time performance, measured from the IAH and GIG airport boards.
https://proflightsearch.com/flight/UA129
.