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Flight Reliability

DL 1510 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1510 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

79%
Arrive within 15 minutes
7 min
Average arrival delay
1.4%
Cancelled
3 min early
Median arrival delay

Based on 730 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(104 flights)
  • Tue84%(103 flights)
  • Wed82%(104 flights)
  • Thu83%(102 flights)
  • Fri79%(103 flights)
  • Sat78%(100 flights)
  • Sun78%(102 flights)
On-time by departure window
  • 6–9 AM81%(165 flights)
  • 9 AM–12 PM82%(221 flights)
  • 12–3 PM77%(332 flights)
On-time trend by month
95%
May

Jun 69% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%58
July 202569%62
August 202579%61
September 202597%60
October 202589%61
November 202570%60
December 202568%59
January 202672%61
February 202679%56
March 202682%62
April 202683%60
May 202695%58
Departures on time
82%
Diverted
0.3%
Flights flown
718
Months covered
12

Keep nerding

Based on 730 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.