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Flight Reliability

DL 803 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 803 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

81%
Arrive within 15 minutes
9 min
Average arrival delay
1.3%
Cancelled
8 min early
Median arrival delay

Based on 472 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(67 flights)
  • Tue82%(66 flights)
  • Wed82%(65 flights)
  • Thu83%(64 flights)
  • Fri83%(63 flights)
  • Sat79%(68 flights)
  • Sun79%(72 flights)
On-time by departure window
  • 9 AM–12 PM84%(170 flights)
  • 12–3 PM87%(135 flights)
  • 3–6 PM74%(160 flights)
On-time trend by month
85%
May

Jun 88% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%16
August 202587%23
September 202593%30
October 202594%31
November 202576%29
December 202570%40
January 202675%57
February 202682%56
March 202677%60
April 202680%60
May 202685%59
Departures on time
83%
Diverted
0.2%
Flights flown
465
Months covered
12

Keep nerding

Based on 472 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.