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Flight Reliability

DL 751 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 751 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

83%
Arrive within 15 minutes
1 min
Average arrival delay
3.7%
Cancelled
11 min early
Median arrival delay

Based on 727 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(95 flights)
  • Tue81%(101 flights)
  • Wed89%(103 flights)
  • Thu86%(100 flights)
  • Fri84%(99 flights)
  • Sat83%(97 flights)
  • Sun79%(101 flights)
On-time by departure window
  • 6–9 AM87%(351 flights)
  • 9 AM–12 PM80%(328 flights)
  • 12–3 PM82%(17 flights)
On-time trend by month
76%
May

Jun 80% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%56
July 202587%61
August 202582%56
September 202588%59
October 202589%62
November 202577%57
December 202574%58
January 202690%60
February 202688%50
March 202678%55
April 202688%60
May 202676%62
Departures on time
89%
Diverted
0.6%
Flights flown
696
Months covered
12

Keep nerding

Based on 727 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.