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Flight Reliability

DL 838 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 838 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

75%
Arrive within 15 minutes
9 min
Average arrival delay
1.5%
Cancelled
2 min early
Median arrival delay

Based on 726 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(102 flights)
  • Tue79%(102 flights)
  • Wed81%(101 flights)
  • Thu69%(101 flights)
  • Fri76%(103 flights)
  • Sat79%(101 flights)
  • Sun70%(101 flights)
On-time by departure window
  • 12–3 PM78%(360 flights)
  • 3–6 PM72%(351 flights)
On-time trend by month
77%
May

Jun 51% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202551%59
July 202570%60
August 202574%61
September 202580%60
October 202589%62
November 202580%59
December 202575%57
January 202685%60
February 202676%55
March 202677%56
April 202668%60
May 202677%62
Departures on time
77%
Diverted
0.6%
Flights flown
711
Months covered
12

Keep nerding

Based on 726 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.