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Flight Reliability

DL 3830 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3830 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

90%
Arrive within 15 minutes
5 min early
Average arrival delay
0.8%
Cancelled
11 min early
Median arrival delay

Based on 730 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(104 flights)
  • Tue95%(104 flights)
  • Wed91%(102 flights)
  • Thu80%(103 flights)
  • Fri86%(102 flights)
  • Sat91%(103 flights)
  • Sun94%(104 flights)
On-time by departure window
  • 6–9 AM96%(389 flights)
  • 9 AM–12 PM83%(333 flights)
On-time trend by month
95%
May

Jun 90% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%60
July 202590%62
August 202582%62
September 202593%60
October 202594%62
November 202591%58
December 202587%62
January 202676%59
February 202686%55
March 202698%60
April 202697%60
May 202695%62
Departures on time
92%
Diverted
0.3%
Flights flown
722
Months covered
12

Keep nerding

Based on 730 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.