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Flight Reliability

DL 4313 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4313 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

81%
Arrive within 15 minutes
16 min
Average arrival delay
7.1%
Cancelled
9 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(49 flights)
  • Tue81%(47 flights)
  • Wed80%(50 flights)
  • Thu83%(48 flights)
  • Fri76%(46 flights)
  • Sat82%(50 flights)
  • Sun85%(48 flights)
On-time by departure window
  • 6–9 AM81%(316 flights)
  • 12–3 PM68%(22 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202590%31
August 202574%31
September 202577%30
October 2025100%31
November 202583%29
December 202574%27
January 202650%26
February 202667%27
March 202665%20
April 202681%26
May 202697%30
Departures on time
85%
Diverted
0%
Flights flown
338
Months covered
12

Keep nerding

Based on 364 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.