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Flight Reliability

DL 5839 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 5839 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
2 min early
Average arrival delay
3.8%
Cancelled
11 min early
Median arrival delay

Based on 266 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(43 flights)
  • Tue89%(44 flights)
  • Wed86%(44 flights)
  • Thu86%(44 flights)
  • Fri84%(43 flights)
  • Sat—(1 flights)
  • Sun87%(37 flights)
On-time by departure window
  • 6–9 AM91%(164 flights)
  • 9 AM–12 PM86%(44 flights)
  • 12–3 PM75%(16 flights)
  • 3–6 PM78%(32 flights)
On-time trend by month
75%
May

Jun 95% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202595%19
July 202584%25
August 2025100%26
September 202596%26
October 202589%27
November 2025100%24
December 202565%17
January 202679%19
February 202690%31
March 202670%10
April 202681%16
May 202675%16
Departures on time
91%
Diverted
0%
Flights flown
256
Months covered
12

Keep nerding

Based on 266 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.