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Flight Reliability

DL 3125 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3125 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

95%
Arrive within 15 minutes
10 min early
Average arrival delay
3.3%
Cancelled
12 min early
Median arrival delay

Based on 516 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon95%(80 flights)
  • Tue96%(82 flights)
  • Wed94%(82 flights)
  • Thu96%(79 flights)
  • Fri96%(82 flights)
  • Sat100%(15 flights)
  • Sun92%(78 flights)
On-time by departure window
  • 6–9 AM95%(243 flights)
  • 9 AM–12 PM96%(255 flights)
On-time trend by month
100%
May

Jun 100% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%48
July 202598%46
August 202593%40
September 2025100%34
October 202596%46
November 202594%34
December 202593%56
January 202685%41
February 202691%22
March 202695%42
April 202696%49
May 2026100%40
Departures on time
95%
Diverted
0.2%
Flights flown
498
Months covered
12

Keep nerding

Based on 516 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.