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WanderNerd

Flight Reliability

DL 1404 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1404 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

68%
Arrive within 15 minutes
29 min
Average arrival delay
3.2%
Cancelled
5 min early
Median arrival delay

Based on 505 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(69 flights)
  • Tue74%(72 flights)
  • Wed68%(71 flights)
  • Thu58%(71 flights)
  • Fri76%(70 flights)
  • Sat72%(65 flights)
  • Sun56%(68 flights)
On-time by departure window
  • 6–9 AM(4 flights)
  • 9 AM–12 PM72%(190 flights)
  • 12–3 PM62%(210 flights)
  • 3–6 PM76%(80 flights)
  • 6–9 PM(2 flights)
On-time trend by month
61%
May

Jun 79% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%57
July 202564%61
August 202571%61
September 202583%59
October 202558%60
November 202562%52
December 202538%32
January 202686%21
February 202682%22
May 202661%49
Departures on time
72%
Diverted
0.6%
Flights flown
486
Months covered
12

Based on 505 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.