UA3987 AtlantaATL · 16:03 Kansas CityMCI · 17:25
UA3987 by United Airlines flies from Atlanta (ATL) to Kansas City (MCI) for the Tue, Aug 18 departure.
Same number through ATL → IAH → MCI
arrived at MCI · 24 min early
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ATL and MCI 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 Atlanta to Kansas City flights today
same route · United AirlinesIf UA3987 is cancelled, these are the other United Airlines nonstop flights from Atlanta to Kansas City on the same day, with scheduled departure times in ATL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA3987 actually runs
Pro Flight Search has tracked every published board update for UA3987 across the ATL and MCI boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left noticeably late (~35 min) but landed about 24 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA3987 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: N76516.
Board clocks recorded as ATL and MCI published them.
Planning around UA3987? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA3987 Atlanta to Kansas City on-time performance, measured from the ATL and MCI airport boards.
https://proflightsearch.com/flight/UA3987
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