UA800 BostonBOS · 16:45 DenverDEN · 19:36
UA800 by United Airlines flies from Boston (BOS) to Denver (DEN) for the Sun, Oct 25 departure.
arrived at DEN · 31 min early
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by DEN (Denver), currently flying LIFR (low instrument). 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 Boston to Denver flights today
same route · United AirlinesIf UA800 is cancelled, these are the other United Airlines nonstop flights from Boston to Denver on the same day, with scheduled departure times in BOS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA800 actually runs
Pro Flight Search has tracked every published board update for UA800 across the BOS and DEN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left right on schedule but landed about 31 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA800 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: N37470, N54552.
Board clocks recorded as BOS and DEN published them.
Planning around UA800? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA800 Boston to Denver on-time performance, measured from the BOS and DEN airport boards.
https://proflightsearch.com/flight/UA800
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