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Flight Reliability

DL 3104 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3104 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

83%
Arrive within 15 minutes
8 min
Average arrival delay
1.0%
Cancelled
5 min early
Median arrival delay

Based on 727 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(104 flights)
  • Tue85%(103 flights)
  • Wed85%(104 flights)
  • Thu89%(102 flights)
  • Fri88%(103 flights)
  • Sat79%(101 flights)
  • Sun81%(102 flights)
On-time by departure window
  • 9 AM–12 PM84%(359 flights)
  • 12–3 PM83%(360 flights)
On-time trend by month
87%
May

Jun 80% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%60
July 202577%61
August 202587%61
September 202597%60
October 202589%62
November 202593%58
December 202586%62
January 202673%59
February 202688%56
March 202662%60
April 202685%60
May 202687%60
Departures on time
84%
Diverted
0.1%
Flights flown
719
Months covered
12

Keep nerding

Based on 727 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.