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Flight Reliability

DL 5144 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5144 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

67%
Arrive within 15 minutes
23 min
Average arrival delay
3.2%
Cancelled
6 min early
Median arrival delay

Based on 503 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon63%(78 flights)
  • Tue72%(82 flights)
  • Wed71%(78 flights)
  • Thu67%(72 flights)
  • Fri68%(80 flights)
  • Sat70%(23 flights)
  • Sun63%(72 flights)
On-time by departure window
  • 9 AM–12 PM71%(164 flights)
  • 12–3 PM76%(41 flights)
  • 3–6 PM62%(258 flights)
  • 6–9 PM82%(22 flights)
On-time trend by month
65%
May

Jun 43% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202543%42
July 202551%47
August 202577%56
September 202580%54
October 202573%51
November 202560%52
December 202564%50
January 202681%26
February 202674%31
March 202675%12
April 202683%18
May 202665%46
Departures on time
71%
Diverted
0.4%
Flights flown
485
Months covered
12

Keep nerding

Based on 503 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.