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Flight Reliability

DL 5651 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5651 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
10 min
Average arrival delay
6.8%
Cancelled
9 min early
Median arrival delay

Based on 473 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(66 flights)
  • Tue69%(72 flights)
  • Wed73%(67 flights)
  • Thu70%(67 flights)
  • Fri74%(72 flights)
  • Sat88%(32 flights)
  • Sun67%(64 flights)
On-time by departure window
  • 6–9 AM—(2 flights)
  • 9 AM–12 PM91%(21 flights)
  • 12–3 PM84%(132 flights)
  • 3–6 PM64%(285 flights)
On-time trend by month
84%
May

Jun 65% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%31
July 202554%26
August 202583%30
September 202525%28
October 202548%29
November 202564%28
December 202578%27
January 202686%44
February 202675%44
March 202675%48
April 202686%55
May 202684%50
Departures on time
73%
Diverted
0.2%
Flights flown
440
Months covered
12

Keep nerding

Based on 473 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.