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Flight Reliability

DL 2128 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2128 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

82%
Arrive within 15 minutes
3 min
Average arrival delay
2.0%
Cancelled
12 min early
Median arrival delay

Based on 650 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(95 flights)
  • Tue81%(95 flights)
  • Wed88%(96 flights)
  • Thu72%(97 flights)
  • Fri85%(92 flights)
  • Sat86%(69 flights)
  • Sun79%(87 flights)
On-time by departure window
  • 3–6 PM84%(508 flights)
  • 6–9 PM74%(123 flights)
On-time trend by month
82%
May

Jun 55% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%55
July 202584%55
August 202579%58
September 202583%59
October 202586%62
November 202578%51
December 202587%38
January 202681%43
February 202693%44
March 202690%60
April 202686%56
May 202682%50
Departures on time
78%
Diverted
0.9%
Flights flown
631
Months covered
12

Keep nerding

Based on 650 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.