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Flight Reliability

DL 2331 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 2331 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
5 min
Average arrival delay
3.3%
Cancelled
6 min early
Median arrival delay

Based on 511 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(75 flights)
  • Tue81%(58 flights)
  • Wed88%(56 flights)
  • Thu82%(79 flights)
  • Fri77%(77 flights)
  • Sat78%(69 flights)
  • Sun78%(80 flights)
On-time by departure window
  • 9 AM–12 PM89%(62 flights)
  • 12–3 PM92%(62 flights)
  • 3–6 PM77%(157 flights)
  • 6–9 PM75%(213 flights)
On-time trend by month
87%
May

Jun 65% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%43
July 202550%46
August 202581%32
September 202596%27
October 202576%59
November 202582%55
December 202577%51
January 202680%40
February 202694%17
March 202691%46
April 202696%26
May 202687%52
Departures on time
78%
Diverted
0%
Flights flown
494
Months covered
12

Keep nerding

Based on 511 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.