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WanderNerd

Flight Reliability

DL 3145 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3145 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

93%
Arrive within 15 minutes
7 min early
Average arrival delay
0.7%
Cancelled
14 min early
Median arrival delay

Based on 284 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(41 flights)
  • Tue91%(42 flights)
  • Wed100%(42 flights)
  • Thu93%(41 flights)
  • Fri97%(39 flights)
  • Sat87%(37 flights)
  • Sun87%(39 flights)
On-time by departure window
  • 6–9 AM96%(189 flights)
  • 9 AM–12 PM96%(24 flights)
  • 3–6 PM79%(48 flights)
  • 6–9 PM90%(20 flights)
On-time trend by month
87%
May

Jun 90% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202593%29
August 202594%31
September 202597%30
October 202597%31
November 2025100%28
December 2025100%18
January 202680%25
February 202682%11
April 202694%18
May 202687%31
Departures on time
90%
Diverted
0.4%
Flights flown
281
Months covered
11

Based on 284 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.