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Flight Reliability

DL 748 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 748 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

84%
Arrive within 15 minutes
1 min early
Average arrival delay
1.0%
Cancelled
12 min early
Median arrival delay

Based on 413 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(67 flights)
  • Tue78%(41 flights)
  • Wed84%(55 flights)
  • Thu91%(63 flights)
  • Fri79%(66 flights)
  • Sat85%(53 flights)
  • Sun89%(63 flights)
On-time by departure window
  • 12–3 AM48%(21 flights)
  • 9 AM–12 PM90%(93 flights)
  • 12–3 PM84%(211 flights)
  • 3–6 PM84%(83 flights)
On-time trend by month
87%
Apr

Jun 47% → Apr 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%17
July 202582%28
August 202590%31
September 202590%30
October 202594%31
November 202587%30
December 202578%41
January 202685%46
February 202690%48
March 202678%50
April 202687%47
Departures on time
83%
Diverted
0.2%
Flights flown
408
Months covered
12

Keep nerding

Based on 413 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.