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Flight Reliability

DL 4246 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4246 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

91%
Arrive within 15 minutes
5 min early
Average arrival delay
0%
Cancelled
10 min early
Median arrival delay

Based on 438 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(86 flights)
  • Tue100%(14 flights)
  • Wed94%(82 flights)
  • Thu90%(80 flights)
  • Fri87%(84 flights)
  • Sat—(8 flights)
  • Sun98%(84 flights)
On-time by departure window
  • 9 AM–12 PM97%(94 flights)
  • 12–3 PM94%(86 flights)
  • 3–6 PM90%(173 flights)
  • 6–9 PM84%(85 flights)
On-time trend by month
91%
May

Jun 91% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%46
July 202583%46
August 202579%42
September 202596%46
October 202594%46
November 202598%44
December 202594%46
March 2026100%34
April 202689%44
May 202691%44
Departures on time
91%
Diverted
0%
Flights flown
438
Months covered
10

Keep nerding

Based on 438 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.