DL9901 AtlantaATL Sioux FallsFSD
DL9901 by Delta Air Lines flies from Atlanta (ATL) to Sioux Falls (FSD).
scheduled from ATL
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ATL and FSD 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 Sioux Falls flights today
same route · Delta Air LinesIf DL9901 is cancelled, these are the other Delta Air Lines nonstop flights from Atlanta to Sioux Falls 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 DL9901 actually runs
Pro Flight Search has tracked every published board update for DL9901 across the ATL and FSD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at ATL and FSD.
The verdict above is that record speaking, so it reflects how DL9901 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around DL9901? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL9901 Atlanta to Sioux Falls on-time performance, measured from the ATL and FSD airport boards.
https://proflightsearch.com/flight/DL9901
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