Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 5711 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5711 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
4 min
Average arrival delay
2.0%
Cancelled
11 min early
Median arrival delay

Based on 597 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(89 flights)
  • Tue73%(93 flights)
  • Wed87%(90 flights)
  • Thu84%(87 flights)
  • Fri78%(90 flights)
  • Sat94%(46 flights)
  • Sun83%(89 flights)
On-time by departure window
  • 6–9 AM87%(181 flights)
  • 9 AM–12 PM80%(239 flights)
  • 12–3 PM75%(55 flights)
  • 3–6 PM81%(107 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
91%
May

Jun 83% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%54
July 202583%53
August 202590%52
September 202597%31
October 202578%54
November 202567%52
December 202571%45
January 202678%41
February 202678%55
March 202683%58
April 202687%54
May 202691%35
Departures on time
85%
Diverted
0.2%
Flights flown
584
Months covered
12

Keep nerding

Based on 597 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.