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Flight Reliability

DL 5017 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5017 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

79%
Arrive within 15 minutes
4 min
Average arrival delay
3.5%
Cancelled
10 min early
Median arrival delay

Based on 405 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(58 flights)
  • Tue85%(59 flights)
  • Wed80%(60 flights)
  • Thu80%(59 flights)
  • Fri76%(58 flights)
  • Sat87%(38 flights)
  • Sun67%(57 flights)
On-time by departure window
  • 6–9 AM91%(45 flights)
  • 9 AM–12 PM84%(194 flights)
  • 12–3 PM78%(18 flights)
  • 3–6 PM72%(57 flights)
  • 6–9 PM65%(75 flights)
On-time trend by month
86%
May

Jun 75% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%28
July 202583%29
August 202594%31
September 202583%30
October 202590%31
November 202579%28
December 202569%29
January 202679%24
February 2026100%22
March 202661%54
April 202675%55
May 202686%28
Departures on time
79%
Diverted
0.5%
Flights flown
389
Months covered
12

Keep nerding

Based on 405 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.