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WanderNerd

Flight Reliability

DL 3712 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3712 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

88%
Arrive within 15 minutes
5 min early
Average arrival delay
0%
Cancelled
12 min early
Median arrival delay

Based on 560 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(82 flights)
  • Tue92%(82 flights)
  • Wed96%(80 flights)
  • Thu88%(81 flights)
  • Fri82%(83 flights)
  • Sat84%(73 flights)
  • Sun89%(79 flights)
On-time by departure window
  • 6–9 AM93%(131 flights)
  • 9 AM–12 PM87%(167 flights)
  • 3–6 PM85%(163 flights)
  • 6–9 PM88%(99 flights)
On-time trend by month
80%
May

Jun 85% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%13
July 202572%25
August 202592%52
September 202592%60
October 202595%62
November 202590%60
December 202585%59
January 202688%56
February 202690%50
March 202689%37
April 202687%30
May 202680%56
Departures on time
89%
Diverted
0%
Flights flown
560
Months covered
12

Based on 560 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.