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Flight Reliability

DL 778 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 778 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

78%
Arrive within 15 minutes
12 min
Average arrival delay
1.8%
Cancelled
7 min early
Median arrival delay

Based on 391 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(57 flights)
  • Tue81%(53 flights)
  • Wed83%(53 flights)
  • Thu77%(57 flights)
  • Fri73%(56 flights)
  • Sat85%(53 flights)
  • Sun66%(55 flights)
On-time by departure window
  • 6–9 AM96%(25 flights)
  • 3–6 PM79%(191 flights)
  • 6–9 PM73%(138 flights)
  • 9 PM–12 AM80%(30 flights)
On-time trend by month
90%
May

Jun 73% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%37
July 202565%31
August 202583%29
September 202573%30
October 202590%31
November 202586%28
December 202569%29
January 202670%30
February 202673%26
March 202684%45
April 202674%38
May 202690%30
Departures on time
77%
Diverted
0%
Flights flown
384
Months covered
12

Keep nerding

Based on 391 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.