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Flight Reliability

DL 3838 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3838 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
18 min
Average arrival delay
0.7%
Cancelled
6 min early
Median arrival delay

Based on 405 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(59 flights)
  • Tue67%(61 flights)
  • Wed72%(57 flights)
  • Thu79%(62 flights)
  • Fri74%(57 flights)
  • Sat58%(45 flights)
  • Sun79%(61 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM72%(158 flights)
  • 12–3 PM73%(137 flights)
  • 3–6 PM72%(104 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
80%
May

Jun 58% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%50
August 202581%36
September 202579%52
December 202541%22
January 202675%56
February 202678%55
March 202662%37
April 202687%30
May 202680%51
Departures on time
73%
Diverted
0%
Flights flown
402
Months covered
11

Keep nerding

Based on 405 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.