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WanderNerd

Flight Reliability

DL 3941 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3941 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

79%
Arrive within 15 minutes
16 min
Average arrival delay
1.1%
Cancelled
7 min early
Median arrival delay

Based on 279 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(48 flights)
  • Tue74%(35 flights)
  • Wed97%(36 flights)
  • Thu86%(44 flights)
  • Fri66%(44 flights)
  • Sat90%(31 flights)
  • Sun70%(37 flights)
On-time by departure window
  • 9 AM–12 PM(7 flights)
  • 12–3 PM73%(85 flights)
  • 3–6 PM81%(111 flights)
  • 6–9 PM80%(56 flights)
  • 9 PM–12 AM94%(16 flights)
On-time trend by month
97%
May

Aug 84% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202584%32
September 202592%26
December 202592%12
January 202665%26
February 202653%38
March 202668%28
April 202676%42
May 202697%59
Departures on time
77%
Diverted
0.4%
Flights flown
275
Months covered
11

Based on 279 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.