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Flight Reliability

DL 828 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 828 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

89%
Arrive within 15 minutes
2 min early
Average arrival delay
2.8%
Cancelled
13 min early
Median arrival delay

Based on 319 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(50 flights)
  • Tue94%(50 flights)
  • Wed88%(48 flights)
  • Thu90%(48 flights)
  • Fri90%(49 flights)
  • Sat93%(14 flights)
  • Sun88%(51 flights)
On-time by departure window
  • 12–3 PM82%(109 flights)
  • 3–6 PM84%(31 flights)
  • 6–9 PM75%(12 flights)
  • 9 PM–12 AM97%(158 flights)
On-time trend by month
78%
May

Jun 100% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%23
July 202592%25
August 2025100%20
September 2025100%17
October 202591%23
November 202596%24
December 2025100%23
January 202683%29
February 202661%23
March 202685%47
April 202692%38
May 202678%18
Departures on time
89%
Diverted
0%
Flights flown
310
Months covered
12

Keep nerding

Based on 319 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.