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WanderNerd

Flight Reliability

DL 1448 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1448 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

81%
Arrive within 15 minutes
2 min
Average arrival delay
1.1%
Cancelled
9 min early
Median arrival delay

Based on 369 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(52 flights)
  • Tue86%(50 flights)
  • Wed85%(54 flights)
  • Thu83%(57 flights)
  • Fri87%(55 flights)
  • Sat84%(43 flights)
  • Sun59%(54 flights)
On-time by departure window
  • 9 AM–12 PM82%(74 flights)
  • 12–3 PM85%(74 flights)
  • 3–6 PM84%(56 flights)
  • 6–9 PM89%(54 flights)
  • 9 PM–12 AM71%(107 flights)
On-time trend by month
70%
May

Jun 64% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%28
July 202562%26
August 202588%24
September 202587%30
October 202583%57
November 202582%60
December 202583%36
February 202689%18
March 202690%29
April 202690%30
May 202670%20
Departures on time
82%
Diverted
0%
Flights flown
365
Months covered
12

Based on 369 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.