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Flight Reliability

DL 668 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 668 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
2.0%
Cancelled
7 min early
Median arrival delay

Based on 708 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(97 flights)
  • Tue76%(101 flights)
  • Wed80%(100 flights)
  • Thu82%(99 flights)
  • Fri74%(102 flights)
  • Sat76%(99 flights)
  • Sun75%(94 flights)
On-time by departure window
  • 6–9 AM77%(353 flights)
  • 9 AM–12 PM75%(268 flights)
  • 12–3 PM81%(68 flights)
  • 6–9 PM—(3 flights)
On-time trend by month
75%
May

Jun 75% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%60
July 202580%60
August 202583%60
September 202587%60
October 202586%62
November 202570%59
December 202551%47
January 202680%55
February 202675%52
March 202682%60
April 202666%56
May 202675%61
Departures on time
80%
Diverted
0.3%
Flights flown
692
Months covered
12

Keep nerding

Based on 708 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.