Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 3578 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 3578 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

94%
Arrive within 15 minutes
4 min early
Average arrival delay
0%
Cancelled
10 min early
Median arrival delay

Based on 390 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon100%(56 flights)
  • Tue95%(56 flights)
  • Wed93%(55 flights)
  • Thu98%(56 flights)
  • Fri89%(56 flights)
  • Sat93%(54 flights)
  • Sun89%(56 flights)
On-time by departure window
  • 9 AM–12 PM90%(41 flights)
  • 12–3 PM95%(220 flights)
  • 3–6 PM94%(128 flights)
On-time trend by month
81%
Dec

Jun 100% → Dec 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%46
July 202590%62
August 202587%62
September 2025100%60
October 2025100%62
November 202595%60
December 202581%37
Departures on time
94%
Diverted
0.3%
Flights flown
389
Months covered
7

Keep nerding

Based on 390 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.