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WanderNerd

Flight Reliability

DL 5185 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5185 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

70%
Arrive within 15 minutes
11 min
Average arrival delay
2.1%
Cancelled
6 min early
Median arrival delay

Based on 678 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(99 flights)
  • Tue65%(101 flights)
  • Wed71%(103 flights)
  • Thu74%(102 flights)
  • Fri64%(94 flights)
  • Sat83%(66 flights)
  • Sun65%(96 flights)
On-time by departure window
  • 12–3 PM69%(16 flights)
  • 3–6 PM70%(642 flights)
  • 6–9 PM(3 flights)
On-time trend by month
55%
May

Jun 64% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%59
July 202552%58
August 202571%62
September 202580%60
October 202583%60
November 202587%47
December 202566%62
January 202685%47
February 202677%44
March 202650%52
April 202673%52
May 202655%58
Departures on time
69%
Diverted
0.4%
Flights flown
661
Months covered
12

Based on 678 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.