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WanderNerd

Flight Reliability

DL 3907 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3907 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

63%
Arrive within 15 minutes
50 min
Average arrival delay
1.9%
Cancelled
1 min
Median arrival delay

Based on 210 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon43%(30 flights)
  • Tue69%(26 flights)
  • Wed67%(27 flights)
  • Thu57%(28 flights)
  • Fri64%(25 flights)
  • Sat77%(39 flights)
  • Sun58%(31 flights)
On-time by departure window
  • 12–3 PM60%(15 flights)
  • 3–6 PM46%(44 flights)
  • 6–9 PM37%(30 flights)
  • 9 PM–12 AM76%(117 flights)
On-time trend by month
87%
May

Oct 77% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
October 202577%26
November 202577%26
December 202564%22
January 202670%10
February 202655%11
March 202621%44
April 202673%37
May 202687%30
Departures on time
63%
Diverted
0%
Flights flown
206
Months covered
8

Based on 210 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.