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WanderNerd

Flight Reliability

DL 5779 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5779 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

76%
Arrive within 15 minutes
9 min
Average arrival delay
2.8%
Cancelled
10 min early
Median arrival delay

Based on 248 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(32 flights)
  • Tue76%(33 flights)
  • Wed79%(33 flights)
  • Thu75%(32 flights)
  • Fri79%(33 flights)
  • Sat73%(41 flights)
  • Sun78%(36 flights)
On-time by departure window
  • 6–9 AM70%(10 flights)
  • 9 AM–12 PM(7 flights)
  • 12–3 PM83%(75 flights)
  • 3–6 PM77%(22 flights)
  • 6–9 PM72%(126 flights)
On-time trend by month
89%
May

Sep 74% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
September 202574%23
October 202557%30
November 202571%28
December 202567%30
January 202683%29
February 202682%27
March 202693%14
April 202684%19
May 202689%28
Departures on time
76%
Diverted
0.4%
Flights flown
240
Months covered
12

Based on 248 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.