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Route Reliability

Atlanta → Louisville

ATL–SDF · 321 miles · Hartsfield–Jackson Atlanta International Airport to Louisville Muhammad Ali International Airport

85
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
3 min
Average arrival delay
1.7%
Cancelled
2,813
Flights in the data

Data through May 2026.

Airlines on this route

  • Delta Air Lines84% on time · 2,802 flights
  • Spirit Airlines73% on time · 11 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning-you made the right choice.

ATL–SDF flights departing between 6–9 AM arrived on time 92% of the time, versus 80% between 6–9 PM.

Sunday scaries are real for this one.

ATL–SDF flights arrived on time 90% of the time on Wednesdays. On Sundays: 80%.

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
  • Mon81%(425 flights)
  • Tue84%(375 flights)
  • Wed90%(380 flights)
  • Thu87%(417 flights)
  • Fri87%(417 flights)
  • Sat83%(328 flights)
  • Sun80%(418 flights)
On-time by departure window
  • 6–9 AM92%(454 flights)
  • 9 AM–12 PM89%(403 flights)
  • 12–3 PM86%(362 flights)
  • 3–6 PM80%(621 flights)
  • 6–9 PM80%(387 flights)
  • 9 PM–12 AM82%(533 flights)
On-time trend by month
84%
May

Jun 70% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%253
July 202583%254
August 202587%247
September 202595%239
October 202591%252
November 202582%211
December 202581%208
January 202685%186
February 202685%194
March 202680%220
April 202690%237
May 202684%259

Keep nerding

Based on 2,813 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.