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Flight Reliability

DL 4983 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4983 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
2 min
Average arrival delay
5.2%
Cancelled
11 min early
Median arrival delay

Based on 576 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(79 flights)
  • Tue82%(82 flights)
  • Wed81%(84 flights)
  • Thu83%(83 flights)
  • Fri82%(84 flights)
  • Sat90%(59 flights)
  • Sun75%(75 flights)
On-time by departure window
  • 6–9 AM82%(218 flights)
  • 9 AM–12 PM80%(299 flights)
  • 12–3 PM79%(29 flights)
On-time trend by month
72%
May

Jun 74% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%54
July 202579%56
August 202586%56
September 202593%56
October 202577%34
November 202589%27
December 202567%30
January 202689%45
February 202691%42
March 202676%50
April 202675%60
May 202672%36
Departures on time
84%
Diverted
0%
Flights flown
546
Months covered
12

Keep nerding

Based on 576 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.