Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 4993 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4993 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

72%
Arrive within 15 minutes
13 min
Average arrival delay
1.9%
Cancelled
7 min early
Median arrival delay

Based on 622 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(102 flights)
  • Tue74%(102 flights)
  • Wed80%(102 flights)
  • Thu74%(99 flights)
  • Fri69%(90 flights)
  • Sat81%(16 flights)
  • Sun63%(97 flights)
On-time by departure window
  • 12–3 PM69%(16 flights)
  • 3–6 PM74%(409 flights)
  • 6–9 PM67%(183 flights)
On-time trend by month
68%
May

Jun 78% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%50
July 202565%52
August 202567%48
September 202571%52
October 202570%50
November 202580%40
December 202548%58
January 202692%49
February 202677%44
March 202672%53
April 202683%52
May 202668%60
Departures on time
70%
Diverted
0.3%
Flights flown
608
Months covered
12

Keep nerding

Based on 622 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.