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Flight Reliability

DL 1281 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1281 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

88%
Arrive within 15 minutes
1 min
Average arrival delay
1.9%
Cancelled
10 min early
Median arrival delay

Based on 730 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(101 flights)
  • Tue89%(102 flights)
  • Wed94%(104 flights)
  • Thu95%(103 flights)
  • Fri90%(102 flights)
  • Sat86%(97 flights)
  • Sun83%(102 flights)
On-time by departure window
  • 6–9 AM91%(99 flights)
  • 9 AM–12 PM88%(504 flights)
  • 12–3 PM87%(108 flights)
On-time trend by month
95%
May

Jun 90% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%58
July 202575%61
August 202594%62
September 202588%59
October 202595%62
November 202582%56
December 202586%62
January 202687%53
February 202693%56
March 202686%62
April 202687%60
May 202695%60
Departures on time
89%
Diverted
0.7%
Flights flown
711
Months covered
12

Keep nerding

Based on 730 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.