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Flight Reliability

DL 1451 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1451 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
2 min early
Average arrival delay
0%
Cancelled
9 min early
Median arrival delay

Based on 416 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(71 flights)
  • Tue86%(63 flights)
  • Wed97%(59 flights)
  • Thu90%(67 flights)
  • Fri81%(70 flights)
  • Sat85%(13 flights)
  • Sun89%(72 flights)
On-time by departure window
  • 12–3 PM65%(17 flights)
  • 3–6 PM90%(242 flights)
  • 6–9 PM90%(151 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
88%
May

Jun 88% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%48
July 202589%46
August 202582%28
September 202582%17
October 202587%23
November 202595%19
December 202591%35
January 2026100%20
February 202684%25
March 202686%50
April 202694%54
May 202688%50
Departures on time
87%
Diverted
0.2%
Flights flown
415
Months covered
12

Keep nerding

Based on 416 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.