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Flight Reliability

DL 4007 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4007 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

72%
Arrive within 15 minutes
22 min
Average arrival delay
0%
Cancelled
4 min early
Median arrival delay

Based on 179 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon55%(29 flights)
  • Tue81%(21 flights)
  • Wed62%(21 flights)
  • Thu81%(31 flights)
  • Fri74%(31 flights)
  • Sat71%(17 flights)
  • Sun79%(29 flights)
On-time by departure window
  • 12–3 PM82%(72 flights)
  • 3–6 PM78%(69 flights)
  • 6–9 PM42%(38 flights)
On-time trend by month
70%
May

Jun 93% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%14
September 202588%34
October 202569%32
January 202621%14
February 202668%28
May 202670%50
Departures on time
75%
Diverted
0%
Flights flown
179
Months covered
7

Keep nerding

Based on 179 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.