UA638 DenverDEN · 16:15 TampaTPA
UA638 by United Airlines flies from Denver (DEN) to Tampa (TPA).
scheduled from DEN
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operation0 cancelled · 11 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DEN and TPA 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.
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 Denver to Tampa flights today
same route · United AirlinesIf UA638 is cancelled, these are the other United Airlines nonstop flights from Denver to Tampa on the same day, with scheduled departure times in DEN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA638 actually runs
Pro Flight Search has tracked every published board update for UA638 across the DEN and TPA boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 11 confirmed departures · 11/11 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA638 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: N77296, N17229, N17430, N27213.
Board clocks recorded as DEN and TPA published them.
Planning around UA638? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA638 Denver to Tampa on-time performance, measured from the DEN and TPA airport boards.
https://proflightsearch.com/flight/UA638
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