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Flight Reliability

DL 3828 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3828 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

88%
Arrive within 15 minutes
1 min
Average arrival delay
0.4%
Cancelled
8 min early
Median arrival delay

Based on 693 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(100 flights)
  • Tue95%(104 flights)
  • Wed81%(100 flights)
  • Thu83%(96 flights)
  • Fri83%(102 flights)
  • Sat93%(88 flights)
  • Sun90%(99 flights)
On-time by departure window
  • 9 AM–12 PM—(5 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM90%(349 flights)
  • 6–9 PM86%(333 flights)
On-time trend by month
87%
May

Jun 97% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%60
July 202593%60
August 202585%60
September 202598%60
October 202595%62
November 202598%55
December 202580%56
January 202686%49
February 202671%45
March 202678%60
April 202683%60
May 202687%62
Departures on time
89%
Diverted
0.1%
Flights flown
689
Months covered
12

Keep nerding

Based on 693 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.