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Flight Reliability

DL 2147 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2147 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

90%
Arrive within 15 minutes
6 min early
Average arrival delay
2.8%
Cancelled
11 min early
Median arrival delay

Based on 708 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(95 flights)
  • Tue88%(99 flights)
  • Wed91%(102 flights)
  • Thu96%(103 flights)
  • Fri93%(102 flights)
  • Sat82%(85 flights)
  • Sun91%(101 flights)
On-time by departure window
  • 6–9 AM—(9 flights)
  • 9 AM–12 PM90%(346 flights)
  • 12–3 PM91%(309 flights)
  • 3–6 PM78%(23 flights)
On-time trend by month
87%
May

Jun 82% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%55
July 202594%54
August 202597%57
September 202597%59
October 202592%62
November 202593%58
December 202591%58
January 202686%56
February 202679%52
March 202687%55
April 202695%60
May 202687%61
Departures on time
90%
Diverted
0.1%
Flights flown
687
Months covered
12

Keep nerding

Based on 708 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.