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Flight Reliability

DL 2506 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2506 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

89%
Arrive within 15 minutes
5 min early
Average arrival delay
1.7%
Cancelled
11 min early
Median arrival delay

Based on 292 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon95%(38 flights)
  • Tue85%(41 flights)
  • Wed91%(42 flights)
  • Thu91%(42 flights)
  • Fri80%(40 flights)
  • Sat93%(41 flights)
  • Sun88%(43 flights)
On-time by departure window
  • 6–9 AM88%(185 flights)
  • 9 AM–12 PM92%(88 flights)
  • 12–3 PM—(7 flights)
  • 3–6 PM—(7 flights)
On-time trend by month
93%
May

Jun 89% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%36
July 202594%31
August 202590%10
October 2025100%31
November 202586%29
December 202562%29
January 202690%30
February 202691%11
April 202694%18
May 202693%55
Departures on time
93%
Diverted
0%
Flights flown
287
Months covered
11

Keep nerding

Based on 292 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.