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Flight Reliability

DL 5804 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5804 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

73%
Arrive within 15 minutes
7 min
Average arrival delay
5.4%
Cancelled
9 min early
Median arrival delay

Based on 538 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(71 flights)
  • Tue70%(74 flights)
  • Wed77%(73 flights)
  • Thu73%(73 flights)
  • Fri74%(77 flights)
  • Sat84%(61 flights)
  • Sun65%(80 flights)
On-time by departure window
  • 6–9 AM83%(64 flights)
  • 9 AM–12 PM89%(45 flights)
  • 12–3 PM84%(119 flights)
  • 3–6 PM59%(206 flights)
  • 6–9 PM76%(75 flights)
On-time trend by month
74%
May

Jun 70% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%46
July 202569%58
August 202584%61
September 202576%49
October 202571%51
November 202575%28
December 202580%30
January 202676%29
February 202685%26
March 202645%42
April 202676%55
May 202674%34
Departures on time
76%
Diverted
0%
Flights flown
509
Months covered
12

Keep nerding

Based on 538 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.