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Flight Reliability

DL 4080 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4080 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

85%
Arrive within 15 minutes
8 min
Average arrival delay
3.6%
Cancelled
10 min early
Median arrival delay

Based on 196 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(25 flights)
  • Tue85%(27 flights)
  • Wed96%(26 flights)
  • Thu74%(27 flights)
  • Fri85%(27 flights)
  • Sat89%(28 flights)
  • Sun70%(27 flights)
On-time by departure window
  • 12–3 PM86%(14 flights)
  • 3–6 PM81%(79 flights)
  • 6–9 PM91%(65 flights)
  • 9 PM–12 AM79%(29 flights)
On-time trend by month
100%
Apr

Jun 96% → Apr 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%24
July 202584%31
August 2025100%10
December 202575%24
January 202687%30
February 202682%27
March 202672%29
April 2026100%12
Departures on time
84%
Diverted
1.0%
Flights flown
187
Months covered
8

Keep nerding

Based on 196 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.