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Flight Reliability

DL 5799 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5799 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
5 min early
Average arrival delay
2.4%
Cancelled
12 min early
Median arrival delay

Based on 379 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(56 flights)
  • Tue75%(57 flights)
  • Wed93%(56 flights)
  • Thu95%(59 flights)
  • Fri90%(58 flights)
  • Sat92%(25 flights)
  • Sun90%(58 flights)
On-time by departure window
  • 6–9 AM93%(158 flights)
  • 9 AM–12 PM91%(89 flights)
  • 12–3 PM—(8 flights)
  • 3–6 PM81%(114 flights)
On-time trend by month
79%
May

Jun 83% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%54
July 202597%32
August 202592%49
September 2025100%35
January 202688%24
February 202696%25
March 202686%55
April 202690%41
May 202679%48
Departures on time
91%
Diverted
0.3%
Flights flown
369
Months covered
11

Keep nerding

Based on 379 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.