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Flight Reliability

DL 5250 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5250 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

74%
Arrive within 15 minutes
6 min
Average arrival delay
10.5%
Cancelled
11 min early
Median arrival delay

Based on 694 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(86 flights)
  • Tue68%(91 flights)
  • Wed73%(89 flights)
  • Thu76%(86 flights)
  • Fri86%(92 flights)
  • Sat77%(94 flights)
  • Sun62%(82 flights)
On-time by departure window
  • 3–6 PM72%(316 flights)
  • 6–9 PM77%(304 flights)
On-time trend by month
60%
May

Jun 48% → May 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%46
July 202566%41
August 202586%57
September 202588%56
October 202583%58
November 202585%54
December 202560%35
January 202683%47
February 202681%48
March 202673%59
April 202670%59
May 202660%60
Departures on time
75%
Diverted
0.1%
Flights flown
620
Months covered
12

Keep nerding

Based on 694 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.