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Flight Reliability

DL 1522 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1522 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
3 min
Average arrival delay
1.6%
Cancelled
10 min early
Median arrival delay

Based on 707 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(103 flights)
  • Tue80%(100 flights)
  • Wed98%(100 flights)
  • Thu98%(100 flights)
  • Fri89%(99 flights)
  • Sat90%(91 flights)
  • Sun78%(103 flights)
On-time by departure window
  • 6–9 AM100%(26 flights)
  • 9 AM–12 PM88%(373 flights)
  • 12–3 PM87%(297 flights)
On-time trend by month
100%
May

Jun 88% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%59
July 202582%62
August 202582%62
September 202593%59
October 202597%58
November 202583%48
December 202576%58
January 202677%56
February 202686%56
March 202696%56
April 202693%60
May 2026100%62
Departures on time
88%
Diverted
0%
Flights flown
696
Months covered
12

Keep nerding

Based on 707 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.