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Flight Reliability

DL 2566 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2566 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

87%
Arrive within 15 minutes
2 min early
Average arrival delay
1.9%
Cancelled
12 min early
Median arrival delay

Based on 678 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(95 flights)
  • Tue93%(98 flights)
  • Wed85%(100 flights)
  • Thu92%(100 flights)
  • Fri83%(95 flights)
  • Sat85%(84 flights)
  • Sun84%(93 flights)
On-time by departure window
  • 6–9 AM90%(333 flights)
  • 9 AM–12 PM83%(332 flights)
On-time trend by month
98%
May

Jun 91% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%55
July 202575%60
August 202591%58
September 202598%60
October 202576%62
November 202579%56
December 202563%38
January 202687%52
February 202692%52
March 202687%60
April 202697%60
May 202698%52
Departures on time
90%
Diverted
0%
Flights flown
665
Months covered
12

Keep nerding

Based on 678 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.