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Flight Reliability

DL 4650 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4650 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

83%
Arrive within 15 minutes
2 min
Average arrival delay
2.1%
Cancelled
8 min early
Median arrival delay

Based on 341 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(47 flights)
  • Tue81%(48 flights)
  • Wed85%(47 flights)
  • Thu77%(48 flights)
  • Fri85%(48 flights)
  • Sat85%(47 flights)
  • Sun84%(49 flights)
On-time by departure window
  • 9 AM–12 PM85%(217 flights)
  • 12–3 PM64%(25 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM84%(91 flights)
On-time trend by month
72%
May

Jun 87% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%23
July 202571%31
August 2025100%31
September 202590%30
October 202590%31
November 202589%28
December 202561%18
January 202680%25
February 202689%28
March 202678%27
April 202692%12
May 202672%50
Departures on time
85%
Diverted
0%
Flights flown
334
Months covered
12

Keep nerding

Based on 341 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.