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Flight Reliability

DL 777 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 777 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
5 min
Average arrival delay
0.8%
Cancelled
3 min early
Median arrival delay

Based on 493 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(69 flights)
  • Tue87%(69 flights)
  • Wed91%(69 flights)
  • Thu86%(71 flights)
  • Fri82%(71 flights)
  • Sat86%(70 flights)
  • Sun79%(70 flights)
On-time by departure window
  • 6–9 AM86%(139 flights)
  • 9 AM–12 PM85%(321 flights)
  • 12–3 PM79%(29 flights)
On-time trend by month
78%
May

Jun 81% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%53
July 202587%37
August 202574%31
September 202587%30
October 202594%31
November 202587%30
December 202590%31
January 202687%54
February 202691%56
March 202684%62
April 202683%24
May 202678%50
Departures on time
87%
Diverted
0%
Flights flown
489
Months covered
12

Keep nerding

Based on 493 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.