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Flight Reliability

DL 3177 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3177 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

88%
Arrive within 15 minutes
10 min
Average arrival delay
3.0%
Cancelled
9 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(49 flights)
  • Tue89%(52 flights)
  • Wed92%(52 flights)
  • Thu96%(52 flights)
  • Fri86%(49 flights)
  • Sat92%(48 flights)
  • Sun81%(52 flights)
On-time by departure window
  • 6–9 AM91%(192 flights)
  • 9 PM–12 AM85%(162 flights)
On-time trend by month
87%
May

Jun 62% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%29
July 202597%31
August 202590%31
September 202593%30
October 202594%31
November 202597%29
December 202587%30
January 202689%28
February 202689%27
March 202683%29
April 202689%28
May 202687%31
Departures on time
89%
Diverted
0%
Flights flown
354
Months covered
12

Keep nerding

Based on 365 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.