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Flight Reliability

DL 5791 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5791 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

79%
Arrive within 15 minutes
7 min
Average arrival delay
1.5%
Cancelled
8 min early
Median arrival delay

Based on 471 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(70 flights)
  • Tue75%(71 flights)
  • Wed87%(68 flights)
  • Thu77%(65 flights)
  • Fri78%(69 flights)
  • Sat86%(44 flights)
  • Sun71%(77 flights)
On-time by departure window
  • 6–9 AM92%(113 flights)
  • 9 AM–12 PM83%(189 flights)
  • 12–3 PM63%(80 flights)
  • 3–6 PM80%(10 flights)
  • 6–9 PM64%(72 flights)
On-time trend by month
63%
May

Jun 82% → May 63% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%50
July 202586%58
August 202586%55
September 202597%59
October 202584%61
November 202567%54
December 202560%45
March 202653%19
April 202676%29
May 202663%27
Departures on time
81%
Diverted
0%
Flights flown
464
Months covered
12

Keep nerding

Based on 471 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.