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WanderNerd

Flight Reliability

DL 5715 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5715 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
3 min
Average arrival delay
4.4%
Cancelled
12 min early
Median arrival delay

Based on 409 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(56 flights)
  • Tue88%(57 flights)
  • Wed73%(55 flights)
  • Thu77%(56 flights)
  • Fri80%(61 flights)
  • Sat92%(48 flights)
  • Sun76%(58 flights)
On-time by departure window
  • 6–9 AM88%(122 flights)
  • 9 AM–12 PM80%(35 flights)
  • 12–3 PM82%(125 flights)
  • 3–6 PM77%(103 flights)
  • 6–9 PM(6 flights)
On-time trend by month
80%
May

Jul 93% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202593%14
September 2025100%23
October 202587%31
November 202590%30
December 202584%43
January 202678%49
February 202673%52
March 202678%55
April 202684%38
May 202680%46
Departures on time
84%
Diverted
0%
Flights flown
391
Months covered
12

Based on 409 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.