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Flight Reliability

DL 4965 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4965 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

74%
Arrive within 15 minutes
16 min
Average arrival delay
4.7%
Cancelled
9 min early
Median arrival delay

Based on 406 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(66 flights)
  • Tue71%(55 flights)
  • Wed78%(55 flights)
  • Thu71%(55 flights)
  • Fri71%(55 flights)
  • Sat85%(40 flights)
  • Sun75%(60 flights)
On-time by departure window
  • 6–9 AM80%(45 flights)
  • 9 AM–12 PM85%(54 flights)
  • 12–3 PM74%(88 flights)
  • 3–6 PM71%(61 flights)
  • 6–9 PM67%(39 flights)
  • 9 PM–12 AM72%(99 flights)
On-time trend by month
84%
May

Jun 52% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%25
July 202567%27
August 202587%31
September 202582%28
October 202582%50
November 202594%32
December 202563%30
January 202691%11
February 202639%18
March 202663%48
April 202674%31
May 202684%55
Departures on time
74%
Diverted
0.2%
Flights flown
386
Months covered
12

Keep nerding

Based on 406 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.