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Flight Reliability

DL 5824 · Delta Air Lines

Louisville → Detroit (SDF–DTW)

97
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
1 min early
Average arrival delay
0.3%
Cancelled
10 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Friday is doing you no favors.

DL 5824 arrived on time 94% of the time on Thursdays. On Fridays: 85%.

Better than the SDF–DTW route average.

DL 5824 arrived on time 90% of the time, versus 82% across the SDF–DTW route.

Better than the Delta Air Lines network average.

DL 5824 arrived on time 90% of the time, versus 81% across the Delta Air Lines network.

It basically never cancels.

Out of 365 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon87%(52 flights)
  • Tue92%(52 flights)
  • Wed89%(52 flights)
  • Thu94%(52 flights)
  • Fri85%(52 flights)
  • Sat94%(52 flights)
  • Sun90%(52 flights)
On-time trend by month
90%
May

Jun 93% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202590%31
August 202597%31
September 202590%30
October 202597%31
November 202593%30
December 202581%31
January 202677%30
February 202693%28
March 202684%31
April 202697%30
May 202690%31
Departures on time
91%
Diverted
0%
Flights flown
364
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.