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Flight Reliability

DL 5004 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5004 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

65%
Arrive within 15 minutes
23 min
Average arrival delay
8.7%
Cancelled
0 min
Median arrival delay

Based on 666 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(89 flights)
  • Tue67%(98 flights)
  • Wed59%(91 flights)
  • Thu59%(87 flights)
  • Fri68%(97 flights)
  • Sat78%(51 flights)
  • Sun59%(92 flights)
On-time by departure window
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM70%(77 flights)
  • 3–6 PM65%(309 flights)
  • 6–9 PM62%(217 flights)
On-time trend by month
61%
May

Jun 70% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%43
July 202561%38
August 202569%54
September 202575%55
October 202563%54
November 202544%50
December 202571%52
January 202682%50
February 202674%46
March 202653%51
April 202657%56
May 202661%56
Departures on time
65%
Diverted
0.5%
Flights flown
605
Months covered
12

Keep nerding

Based on 666 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.