DL1523 AtlantaATL · 07:25 LouisvilleSDF · 08:46
DL1523 by Delta Air Lines flies from Atlanta (ATL) to Louisville (SDF).
scheduled from ATL
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
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ATL and SDF 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 Louisville flights today
same route · Delta Air LinesIf DL1523 is cancelled, these are the other Delta Air Lines nonstop flights from Atlanta to Louisville 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 DL1523 actually runs
Pro Flight Search has tracked every published board update for DL1523 across the ATL and SDF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left a little late (~7 min) but landed about 19 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how DL1523 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: N931DQ, N942DZ, N960DZ.
Board clocks recorded as ATL and SDF published them.
Planning around DL1523? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL1523 Atlanta to Louisville on-time performance, measured from the ATL and SDF airport boards.
https://proflightsearch.com/flight/DL1523
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