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Flight Reliability

DL 4146 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4146 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
1.3%
Cancelled
12 min early
Median arrival delay

Based on 556 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(78 flights)
  • Tue90%(80 flights)
  • Wed86%(80 flights)
  • Thu80%(76 flights)
  • Fri78%(80 flights)
  • Sat85%(78 flights)
  • Sun82%(76 flights)
On-time by departure window
  • 6–9 AM87%(165 flights)
  • 12–3 PM84%(368 flights)
  • 3–6 PM73%(15 flights)
On-time trend by month
84%
May

Jun 87% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%53
July 202564%61
August 202589%62
September 202590%60
October 202595%62
November 202591%54
December 202569%49
January 202693%27
February 202679%28
March 202684%31
April 202693%30
May 202684%31
Departures on time
83%
Diverted
0.2%
Flights flown
548
Months covered
12

Keep nerding

Based on 556 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.