How often are ATL to SDF flights on time?

Flights from Atlanta (ATL) to Louisville (SDF) arrive on time 88% of the time across 17,972 flights of official data.

Which airline is most reliable on the ATL to SDF route?

Delta Air Lines has the best on-time record on this route at 89% across 15,858 flights.

Route reliability

Flights from Atlanta to Louisville arrive on time 88% of the time across 17,972 flights. Here’s how each airline really performs.

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On-time rate

17,972 flights

Airline	On-time	Flights
Delta Air Lines	89%	15,858
Southwest Airlines	84%	2,114

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg SDF → ATL.

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Score real ATL–SDF flights on reliability, weather, and connection safety — not just price.

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