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Flight Reliability

DL 4076 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4076 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

78%
Arrive within 15 minutes
6 min
Average arrival delay
2.0%
Cancelled
10 min early
Median arrival delay

Based on 298 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(42 flights)
  • Tue77%(44 flights)
  • Wed81%(42 flights)
  • Thu74%(43 flights)
  • Fri71%(45 flights)
  • Sat87%(37 flights)
  • Sun85%(39 flights)
On-time by departure window
  • 6–9 AM86%(83 flights)
  • 9 AM–12 PM91%(96 flights)
  • 3–6 PM62%(107 flights)
  • 6–9 PM—(6 flights)
On-time trend by month
95%
May

Jun 100% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%12
August 202575%28
January 202635%23
February 202663%40
March 202678%60
April 202686%58
May 202695%62
Departures on time
78%
Diverted
0%
Flights flown
292
Months covered
9

Keep nerding

Based on 298 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.