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Flight Reliability

DL 971 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 971 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

72%
Arrive within 15 minutes
12 min
Average arrival delay
2.1%
Cancelled
3 min early
Median arrival delay

Based on 290 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(48 flights)
  • Tue73%(37 flights)
  • Wed80%(35 flights)
  • Thu80%(45 flights)
  • Fri73%(44 flights)
  • Sat68%(28 flights)
  • Sun62%(47 flights)
On-time by departure window
  • 3–6 PM82%(45 flights)
  • 6–9 PM75%(148 flights)
  • 9 PM–12 AM62%(91 flights)
On-time trend by month
73%
May

Jun 36% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202536%28
July 202563%19
August 202571%14
September 2025100%13
October 202574%27
November 202592%24
December 202557%28
January 202674%19
February 202682%22
March 202690%30
April 202667%30
May 202673%30
Departures on time
73%
Diverted
0%
Flights flown
284
Months covered
12

Keep nerding

Based on 290 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.