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Flight Reliability

DL 1587 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1587 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

81%
Arrive within 15 minutes
5 min
Average arrival delay
1.4%
Cancelled
5 min early
Median arrival delay

Based on 730 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(99 flights)
  • Tue79%(104 flights)
  • Wed91%(103 flights)
  • Thu79%(104 flights)
  • Fri79%(104 flights)
  • Sat78%(102 flights)
  • Sun82%(104 flights)
On-time by departure window
  • 9 AM–12 PM81%(359 flights)
  • 12–3 PM82%(361 flights)
On-time trend by month
87%
May

Jun 82% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%60
July 202581%62
August 202577%62
September 202585%60
October 202584%62
November 202577%60
December 202579%61
January 202677%56
February 202679%56
March 202680%59
April 202688%60
May 202687%62
Departures on time
79%
Diverted
0%
Flights flown
720
Months covered
12

Keep nerding

Based on 730 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.