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Flight Reliability

DL 669 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 669 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

71%
Arrive within 15 minutes
10 min
Average arrival delay
1.4%
Cancelled
2 min early
Median arrival delay

Based on 354 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue78%(51 flights)
  • Wed71%(52 flights)
  • Thu60%(52 flights)
  • Fri73%(52 flights)
  • Sat85%(41 flights)
  • Sun59%(51 flights)
On-time by departure window
  • 6–9 AM83%(42 flights)
  • 9 AM–12 PM78%(86 flights)
  • 12–3 PM65%(221 flights)
On-time trend by month
74%
May

Jun 56% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%27
July 202544%27
August 202566%29
September 202580%30
October 202581%31
November 202567%30
December 202580%30
January 202676%29
February 202679%24
March 202674%31
April 202667%30
May 202674%31
Departures on time
71%
Diverted
0%
Flights flown
349
Months covered
12

Keep nerding

Based on 354 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.