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Flight Reliability

DL 1580 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1580 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

86%
Arrive within 15 minutes
2 min early
Average arrival delay
1.5%
Cancelled
13 min early
Median arrival delay

Based on 390 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(51 flights)
  • Tue89%(53 flights)
  • Wed91%(55 flights)
  • Thu82%(56 flights)
  • Fri88%(56 flights)
  • Sat89%(56 flights)
  • Sun83%(57 flights)
On-time by departure window
  • 6–9 AM90%(165 flights)
  • 9 AM–12 PM82%(215 flights)
  • 12–3 PM—(4 flights)
On-time trend by month
96%
May

Jun 97% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202581%31
August 202590%31
September 202583%30
October 202561%31
November 202577%30
December 202573%30
January 202676%29
February 202692%26
March 202697%30
April 202697%30
May 202696%56
Departures on time
87%
Diverted
0%
Flights flown
384
Months covered
12

Keep nerding

Based on 390 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.