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Flight Reliability

DL 1244 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1244 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

86%
Arrive within 15 minutes
1 min early
Average arrival delay
0.7%
Cancelled
10 min early
Median arrival delay

Based on 546 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(85 flights)
  • Tue91%(80 flights)
  • Wed88%(82 flights)
  • Thu83%(81 flights)
  • Fri84%(81 flights)
  • Sat94%(46 flights)
  • Sun81%(87 flights)
On-time by departure window
  • 3–6 PM87%(373 flights)
  • 6–9 PM84%(169 flights)
On-time trend by month
90%
May

Jun 92% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%24
July 202578%23
August 202589%28
September 202579%34
October 202578%45
November 202582%34
December 202588%58
January 202689%62
February 202690%51
March 202695%61
April 202677%60
May 202690%62
Departures on time
83%
Diverted
0%
Flights flown
542
Months covered
12

Keep nerding

Based on 546 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.