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Flight Reliability

DL 1077 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1077 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

65%
Arrive within 15 minutes
17 min
Average arrival delay
2.8%
Cancelled
1 min
Median arrival delay

Based on 669 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(88 flights)
  • Tue67%(93 flights)
  • Wed67%(93 flights)
  • Thu59%(95 flights)
  • Fri68%(93 flights)
  • Sat76%(93 flights)
  • Sun54%(93 flights)
On-time by departure window
  • 9 AM–12 PM73%(206 flights)
  • 12–3 PM69%(55 flights)
  • 3–6 PM60%(387 flights)
On-time trend by month
57%
May

Jun 65% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%51
July 202570%59
August 202587%62
September 202578%58
October 202560%62
November 202560%60
December 202555%49
January 202667%30
February 202670%40
March 202660%55
April 202655%60
May 202657%62
Departures on time
68%
Diverted
0.3%
Flights flown
648
Months covered
12

Keep nerding

Based on 669 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.