How often are ORD to SDF flights on time?

Flights from Chicago (ORD) to Louisville (SDF) arrive on time 85% of the time across 16,689 flights of official data.

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

American Airlines has the best on-time record on this route at 85% across 6,935 flights.

Route reliability

Flights from Chicago to Louisville arrive on time 85% of the time across 16,689 flights. Here’s how each airline really performs.

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On-time rate

16,689 flights

Airline	On-time	Flights
American Airlines	85%	6,935
United Airlines	84%	9,754

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

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

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