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Flight Reliability

DL 3952 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3952 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
7 min
Average arrival delay
2.0%
Cancelled
9 min early
Median arrival delay

Based on 307 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(47 flights)
  • Tue84%(45 flights)
  • Wed89%(46 flights)
  • Thu69%(48 flights)
  • Fri80%(44 flights)
  • Sat88%(24 flights)
  • Sun72%(47 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 12–3 PM55%(20 flights)
  • 3–6 PM84%(128 flights)
  • 6–9 PM78%(152 flights)
On-time trend by month
90%
May

Jun 60% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%42
September 202582%34
October 202596%52
November 2025100%12
December 202573%11
January 202679%28
February 202675%28
March 202671%31
April 202667%30
May 202690%30
Departures on time
79%
Diverted
0%
Flights flown
301
Months covered
12

Keep nerding

Based on 307 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.