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Flight Reliability

DL 2158 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2158 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

91%
Arrive within 15 minutes
5 min early
Average arrival delay
0.7%
Cancelled
12 min early
Median arrival delay

Based on 547 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(81 flights)
  • Tue91%(80 flights)
  • Wed88%(80 flights)
  • Thu94%(80 flights)
  • Fri92%(82 flights)
  • Sat90%(60 flights)
  • Sun92%(78 flights)
On-time by departure window
  • 6–9 AM92%(36 flights)
  • 9 AM–12 PM91%(349 flights)
  • 12–3 PM90%(156 flights)
On-time trend by month
76%
May

Jun 79% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%47
July 202593%60
August 202597%62
September 202595%59
October 202590%62
November 202597%57
December 202588%34
January 202688%25
February 202691%42
March 202692%36
April 202696%28
May 202676%29
Departures on time
88%
Diverted
0.4%
Flights flown
541
Months covered
12

Keep nerding

Based on 547 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.