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Route Reliability

Louisville → Chicago

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

74
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
10 min
Average arrival delay
2.7%
Cancelled
3,299
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.American Airlines80%1,361 flights
  2. 2.United Airlines76%1,938 flights

What the data says

Morning-you made the right choice.

SDF–ORD flights departing between 3–6 AM arrived on time 94% of the time, versus 60% between 3–6 PM.

Friday is doing you no favors.

SDF–ORD flights arrived on time 82% of the time on Thursdays. On Fridays: 73%.

American Airlines has a slight edge here.

American Airlines arrived on time 80% of the time on this route; United Airlines managed 76%.

Ticking up lately.

SDF–ORD flights arrived on time 77% of the time over the last three months in the data, compared with 73% 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
  • Mon79%(472 flights)
  • Tue78%(436 flights)
  • Wed76%(456 flights)
  • Thu82%(472 flights)
  • Fri73%(469 flights)
  • Sat78%(429 flights)
  • Sun75%(468 flights)
On-time by departure window
  • 3–6 AM94%(144 flights)
  • 6–9 AM85%(902 flights)
  • 9 AM–12 PM86%(685 flights)
  • 12–3 PM74%(704 flights)
  • 3–6 PM60%(272 flights)
  • 6–9 PM62%(495 flights)
On-time trend by month
81%
May

Jun 79% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%265
July 202571%253
August 202582%277
September 202586%277
October 202582%291
November 202574%233
December 202572%257
January 202674%226
February 202673%213
March 202673%233
April 202677%299
May 202681%378

Same trip, other airports

Keep nerding

Based on 3,299 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.