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Flight Reliability

DL 1648 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1648 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

85%
Arrive within 15 minutes
1 min
Average arrival delay
0.7%
Cancelled
9 min early
Median arrival delay

Based on 596 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(85 flights)
  • Tue89%(87 flights)
  • Wed92%(87 flights)
  • Thu78%(85 flights)
  • Fri84%(86 flights)
  • Sat85%(74 flights)
  • Sun84%(87 flights)
On-time by departure window
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM86%(361 flights)
  • 3–6 PM84%(229 flights)
On-time trend by month
90%
May

Jun 77% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%53
July 202585%60
August 202587%61
September 202588%57
October 202595%57
November 202585%52
December 202573%60
January 202686%35
February 202682%28
March 202680%55
April 202695%42
May 202690%31
Departures on time
83%
Diverted
0.2%
Flights flown
591
Months covered
12

Keep nerding

Based on 596 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.