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Flight Reliability

DL 1327 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 1327 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
12 min
Average arrival delay
2.7%
Cancelled
2 min early
Median arrival delay

Based on 335 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue72%(46 flights)
  • Wed82%(44 flights)
  • Thu72%(47 flights)
  • Fri71%(48 flights)
  • Sat77%(44 flights)
  • Sun75%(47 flights)
On-time by departure window
  • 6–9 AM83%(30 flights)
  • 9 AM–12 PM84%(86 flights)
  • 3–6 PM—(1 flights)
  • 6–9 PM68%(203 flights)
  • 9 PM–12 AM—(6 flights)
On-time trend by month
35%
May

Jun 80% → May 35% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%20
July 202563%27
August 202576%29
September 202596%25
October 202574%31
November 202569%29
December 202558%26
January 202690%29
February 202684%25
March 202676%29
April 202687%30
May 202635%26
Departures on time
76%
Diverted
0%
Flights flown
326
Months covered
12

Keep nerding

Based on 335 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.