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WanderNerd

Flight Reliability

DL 3719 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3719 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

76%
Arrive within 15 minutes
13 min
Average arrival delay
0.2%
Cancelled
5 min early
Median arrival delay

Based on 407 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(59 flights)
  • Tue81%(58 flights)
  • Wed76%(58 flights)
  • Thu74%(62 flights)
  • Fri73%(60 flights)
  • Sat88%(48 flights)
  • Sun71%(58 flights)
On-time by departure window
  • 6–9 AM92%(99 flights)
  • 9 AM–12 PM83%(40 flights)
  • 12–3 PM71%(105 flights)
  • 3–6 PM65%(63 flights)
  • 6–9 PM69%(96 flights)
On-time trend by month
74%
May

Jun 93% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202590%30
August 202590%29
September 202593%14
October 202589%26
November 202570%30
December 202550%30
January 202662%45
February 202674%42
March 202672%61
April 202679%24
May 202674%42
Departures on time
79%
Diverted
0.7%
Flights flown
403
Months covered
12

Based on 407 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.