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Route Reliability

Chicago → Louisville

ORD–SDF · 286 miles · Chicago O'Hare International Airport to Louisville Muhammad Ali International Airport

71
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
11 min
Average arrival delay
2.9%
Cancelled
3,296
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.American Airlines78%1,358 flights
  2. 2.United Airlines74%1,938 flights

What the data says

Morning-you made the right choice.

ORD–SDF flights departing between 6–9 AM arrived on time 86% of the time, versus 69% between 12–3 PM.

Sunday scaries are real for this one.

ORD–SDF flights arrived on time 80% of the time on Tuesdays. On Sundays: 72%.

American Airlines has a slight edge here.

American Airlines arrived on time 78% of the time on this route; United Airlines managed 74%.

Ticking up lately.

ORD–SDF flights arrived on time 73% of the time over the last three months in the data, compared with 68% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon73%(463 flights)
  • Tue80%(438 flights)
  • Wed75%(462 flights)
  • Thu79%(472 flights)
  • Fri75%(466 flights)
  • Sat76%(425 flights)
  • Sun72%(469 flights)
On-time by departure window
  • 6–9 AM86%(440 flights)
  • 9 AM–12 PM76%(680 flights)
  • 12–3 PM69%(478 flights)
  • 3–6 PM76%(652 flights)
  • 6–9 PM73%(847 flights)
  • 9 PM–12 AM77%(98 flights)
On-time trend by month
79%
May

Jun 80% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%263
July 202567%253
August 202584%276
September 202587%278
October 202584%293
November 202577%230
December 202562%261
January 202667%226
February 202674%212
March 202667%226
April 202674%298
May 202679%379

Same trip, other airports

Keep nerding

Based on 3,296 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.