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Flight Reliability

DL 4261 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4261 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

79%
Arrive within 15 minutes
7 min
Average arrival delay
1.8%
Cancelled
9 min early
Median arrival delay

Based on 724 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(100 flights)
  • Tue81%(101 flights)
  • Wed78%(104 flights)
  • Thu83%(98 flights)
  • Fri77%(102 flights)
  • Sat82%(102 flights)
  • Sun77%(102 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM78%(354 flights)
  • 12–3 PM81%(354 flights)
On-time trend by month
98%
May

Jun 85% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%59
July 202577%62
August 202586%62
September 202593%60
October 202589%62
November 202578%54
December 202555%60
January 202661%56
February 202673%56
March 202677%60
April 202680%60
May 202698%58
Departures on time
81%
Diverted
0.3%
Flights flown
709
Months covered
12

Keep nerding

Based on 724 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.