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Flight Reliability

DL 2999 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2999 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

94%
Arrive within 15 minutes
9 min early
Average arrival delay
2.7%
Cancelled
13 min early
Median arrival delay

Based on 710 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(96 flights)
  • Tue90%(104 flights)
  • Wed94%(103 flights)
  • Thu95%(104 flights)
  • Fri97%(102 flights)
  • Sat95%(87 flights)
  • Sun89%(94 flights)
On-time by departure window
  • 6–9 AM91%(336 flights)
  • 9 AM–12 PM96%(353 flights)
  • 12–3 PM—(1 flights)
On-time trend by month
100%
May

Jun 95% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202595%59
July 202593%61
August 202595%58
September 202592%60
October 202597%62
November 202595%60
December 202587%54
January 202685%52
February 202696%48
March 202691%56
April 202697%58
May 2026100%62
Departures on time
93%
Diverted
0.1%
Flights flown
690
Months covered
12

Keep nerding

Based on 710 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.