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WanderNerd

Flight Reliability

DL 2858 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2858 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

81%
Arrive within 15 minutes
5 min
Average arrival delay
0.3%
Cancelled
6 min early
Median arrival delay

Based on 293 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(42 flights)
  • Tue77%(43 flights)
  • Wed88%(40 flights)
  • Thu81%(41 flights)
  • Fri76%(41 flights)
  • Sat79%(42 flights)
  • Sun83%(42 flights)
On-time by departure window
  • 6–9 AM98%(41 flights)
  • 12–3 PM81%(129 flights)
  • 3–6 PM75%(121 flights)
On-time trend by month
89%
May

Dec 92% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202592%12
January 202667%57
February 202684%56
March 202684%62
April 202678%60
May 202689%36
Departures on time
84%
Diverted
0.3%
Flights flown
291
Months covered
8

Based on 293 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.