UA1874 HoustonIAH · 05:15 TorontoYYZ · 06:47
UA1874 by United Airlines flies from Houston (IAH) to Toronto (YYZ) for the Fri, Sep 11 departure.
Same number through IAH → DEN → YYZ
departs IAH · on schedule
board checked 32m 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 YYZ 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 Toronto flights today
same route · United AirlinesIf UA1874 is cancelled, these are the other United Airlines nonstop flights from Houston to Toronto 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 UA1874 actually runs
Pro Flight Search has tracked every published board update for UA1874 across the IAH and YYZ boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed -16 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA1874 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: N54525, N14524, N14534.
Board clocks recorded as IAH and YYZ published them.
Planning around UA1874? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA1874 Houston to Toronto on-time performance, measured from the IAH and YYZ airport boards.
https://proflightsearch.com/flight/UA1874
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