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Flight Reliability

DL 1003 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1003 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
3.3%
Cancelled
7 min early
Median arrival delay

Based on 523 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(72 flights)
  • Tue90%(73 flights)
  • Wed82%(71 flights)
  • Thu72%(71 flights)
  • Fri75%(72 flights)
  • Sat86%(71 flights)
  • Sun80%(71 flights)
On-time by departure window
  • 6–9 AM89%(165 flights)
  • 9 AM–12 PM84%(166 flights)
  • 12–3 PM68%(134 flights)
  • 3–6 PM81%(36 flights)
On-time trend by month
93%
May

Jun 69% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%36
July 202559%29
August 202570%30
September 202570%27
October 202589%27
November 202578%23
December 202575%40
January 202688%57
February 202683%54
March 202686%59
April 202686%59
May 202693%60
Departures on time
85%
Diverted
1.0%
Flights flown
501
Months covered
12

Keep nerding

Based on 523 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.