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Flight Reliability

DL 3915 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3915 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

82%
Arrive within 15 minutes
9 min
Average arrival delay
0.5%
Cancelled
8 min early
Median arrival delay

Based on 415 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(61 flights)
  • Tue79%(61 flights)
  • Wed84%(61 flights)
  • Thu80%(59 flights)
  • Fri87%(62 flights)
  • Sat79%(48 flights)
  • Sun75%(60 flights)
On-time by departure window
  • 3–6 AM90%(30 flights)
  • 6–9 AM81%(106 flights)
  • 9 AM–12 PM77%(82 flights)
  • 6–9 PM83%(194 flights)
On-time trend by month
95%
May

Jun 87% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%23
July 202581%31
August 202584%31
September 202587%30
October 202590%31
November 202576%29
December 202568%19
January 202663%54
February 202680%50
March 202677%30
April 202693%28
May 202695%56
Departures on time
82%
Diverted
0.2%
Flights flown
412
Months covered
12

Keep nerding

Based on 415 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.