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Flight Reliability

DL 3717 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3717 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

94%
Arrive within 15 minutes
7 min early
Average arrival delay
0.4%
Cancelled
11 min early
Median arrival delay

Based on 543 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(79 flights)
  • Tue95%(79 flights)
  • Wed96%(77 flights)
  • Thu93%(75 flights)
  • Fri93%(72 flights)
  • Sat96%(79 flights)
  • Sun91%(79 flights)
On-time trend by month
100%
May

Jun 92% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%60
July 202592%60
August 202594%62
September 202590%60
October 202597%59
November 202594%33
December 202593%28
January 202690%30
February 202697%31
March 202691%32
April 202696%48
May 2026100%37
Departures on time
94%
Diverted
0.2%
Flights flown
540
Months covered
12

Keep nerding

Based on 543 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.