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Flight Reliability

DL 2456 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2456 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

90%
Arrive within 15 minutes
3 min early
Average arrival delay
0.7%
Cancelled
12 min early
Median arrival delay

Based on 307 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(52 flights)
  • Tue94%(52 flights)
  • Wed98%(48 flights)
  • Thu91%(46 flights)
  • Fri90%(48 flights)
  • Sat—(9 flights)
  • Sun92%(50 flights)
On-time by departure window
  • 6–9 AM90%(106 flights)
  • 9 AM–12 PM89%(130 flights)
  • 12–3 PM91%(45 flights)
  • 3–6 PM96%(24 flights)
On-time trend by month
80%
May

Jun 92% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%48
July 202585%46
August 202598%48
September 202588%50
October 202587%46
December 202594%16
April 202691%32
May 202680%10
Departures on time
89%
Diverted
0%
Flights flown
305
Months covered
11

Keep nerding

Based on 307 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.