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Flight Reliability

DL 2577 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2577 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

79%
Arrive within 15 minutes
8 min
Average arrival delay
2.3%
Cancelled
11 min early
Median arrival delay

Based on 724 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(98 flights)
  • Tue82%(103 flights)
  • Wed79%(104 flights)
  • Thu92%(102 flights)
  • Fri78%(101 flights)
  • Sat71%(97 flights)
  • Sun76%(100 flights)
On-time by departure window
  • 9 AM–12 PM80%(352 flights)
  • 12–3 PM78%(353 flights)
On-time trend by month
81%
May

Jun 73% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%59
July 202572%60
August 202579%61
September 202593%56
October 202583%60
November 202576%58
December 202563%59
January 202668%60
February 202687%52
March 202682%62
April 202693%60
May 202681%58
Departures on time
78%
Diverted
0.3%
Flights flown
705
Months covered
12

Keep nerding

Based on 724 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.