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Flight Reliability

DL 1012 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1012 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
1.1%
Cancelled
6 min early
Median arrival delay

Based on 358 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(53 flights)
  • Tue91%(53 flights)
  • Wed89%(54 flights)
  • Thu65%(54 flights)
  • Fri70%(53 flights)
  • Sat78%(37 flights)
  • Sun78%(49 flights)
On-time by departure window
  • 12–3 PM80%(268 flights)
  • 3–6 PM84%(73 flights)
  • 9 PM–12 AM33%(12 flights)
On-time trend by month
79%
May

Jun 68% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%25
July 202544%25
August 202573%30
September 202597%30
October 202587%31
November 202586%28
December 202560%30
January 202672%25
February 202689%35
March 202691%35
April 202690%30
May 202679%29
Departures on time
84%
Diverted
0.3%
Flights flown
353
Months covered
12

Keep nerding

Based on 358 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.