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WanderNerd

Flight Reliability

DL 396 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 396 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

86%
Arrive within 15 minutes
3 min early
Average arrival delay
1.8%
Cancelled
12 min early
Median arrival delay

Based on 226 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(33 flights)
  • Tue92%(25 flights)
  • Wed92%(25 flights)
  • Thu93%(29 flights)
  • Fri90%(29 flights)
  • Sat79%(34 flights)
  • Sun79%(47 flights)
On-time by departure window
  • 6–9 AM80%(20 flights)
  • 9 AM–12 PM91%(56 flights)
  • 12–3 PM89%(109 flights)
  • 3–6 PM67%(33 flights)
  • 6–9 PM(4 flights)
On-time trend by month
79%
May

Jun 95% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202595%19
September 202591%21
November 202586%21
December 202583%23
January 202690%38
March 202688%25
April 202673%26
May 202679%29
Departures on time
85%
Diverted
0%
Flights flown
222
Months covered
11

Based on 226 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.