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Flight Reliability

DL 1447 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1447 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

95%
Arrive within 15 minutes
9 min early
Average arrival delay
1.7%
Cancelled
13 min early
Median arrival delay

Based on 572 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon89%(81 flights)
  • Tue94%(81 flights)
  • Wed96%(80 flights)
  • Thu97%(78 flights)
  • Fri96%(80 flights)
  • Sat95%(78 flights)
  • Sun96%(84 flights)
On-time by departure window
  • 6–9 AM95%(357 flights)
  • 9 AM–12 PM95%(205 flights)
On-time trend by month
100%
May

Jun 90% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%60
July 202598%62
August 202595%41
September 2025100%30
October 202587%31
November 202589%27
December 202591%42
January 202697%62
February 202691%54
March 202697%60
April 2026100%58
May 2026100%35
Departures on time
94%
Diverted
0%
Flights flown
562
Months covered
12

Keep nerding

Based on 572 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.