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Flight Reliability

DL 1456 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1456 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
5 min
Average arrival delay
0.8%
Cancelled
7 min early
Median arrival delay

Based on 519 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(78 flights)
  • Tue89%(74 flights)
  • Wed92%(75 flights)
  • Thu95%(78 flights)
  • Fri87%(78 flights)
  • Sat81%(59 flights)
  • Sun82%(72 flights)
On-time by departure window
  • 6–9 AM92%(24 flights)
  • 9 AM–12 PM87%(200 flights)
  • 12–3 PM86%(183 flights)
  • 3–6 PM86%(57 flights)
  • 6–9 PM92%(50 flights)
On-time trend by month
96%
May

Jun 83% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%52
July 202586%62
August 202593%59
September 202592%52
October 202593%60
November 202578%60
December 202574%38
January 202679%24
February 202683%12
March 202686%21
April 202693%28
May 202696%46
Departures on time
84%
Diverted
0.2%
Flights flown
514
Months covered
12

Keep nerding

Based on 519 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.