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Flight Reliability

DL 3800 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3800 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

89%
Arrive within 15 minutes
3 min early
Average arrival delay
0.7%
Cancelled
11 min early
Median arrival delay

Based on 600 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(89 flights)
  • Tue93%(90 flights)
  • Wed94%(84 flights)
  • Thu88%(86 flights)
  • Fri92%(87 flights)
  • Sat88%(72 flights)
  • Sun83%(88 flights)
On-time by departure window
  • 12–3 PM85%(26 flights)
  • 3–6 PM88%(255 flights)
  • 6–9 PM90%(315 flights)
On-time trend by month
84%
May

Jun 100% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%53
July 202588%60
August 202590%58
September 202592%60
October 202598%60
November 202591%57
December 202587%54
January 202689%27
February 202692%36
March 202672%58
April 202679%42
May 202684%31
Departures on time
88%
Diverted
0%
Flights flown
596
Months covered
12

Keep nerding

Based on 600 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.