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Flight Reliability

DL 1431 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1431 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

87%
Arrive within 15 minutes
1 min
Average arrival delay
0.4%
Cancelled
7 min early
Median arrival delay

Based on 695 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(99 flights)
  • Tue89%(97 flights)
  • Wed89%(99 flights)
  • Thu90%(99 flights)
  • Fri90%(97 flights)
  • Sat83%(99 flights)
  • Sun81%(100 flights)
On-time by departure window
  • 9 AM–12 PM85%(363 flights)
  • 12–3 PM88%(327 flights)
On-time trend by month
93%
May

Jun 85% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%60
July 202595%37
August 202596%52
September 202593%59
October 202576%62
November 202588%59
December 202581%62
January 202692%62
February 202682%56
March 202682%60
April 202680%60
May 202693%61
Departures on time
86%
Diverted
0.3%
Flights flown
690
Months covered
12

Keep nerding

Based on 695 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.