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Flight Reliability

DL 4119 · Delta Air Lines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and DL 4119 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

86%
Arrive within 15 minutes
1 min early
Average arrival delay
2.0%
Cancelled
8 min early
Median arrival delay

Based on 717 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(104 flights)
  • Tue86%(102 flights)
  • Wed92%(102 flights)
  • Thu88%(101 flights)
  • Fri86%(97 flights)
  • Sat87%(97 flights)
  • Sun88%(100 flights)
On-time by departure window
  • 6–9 AM83%(353 flights)
  • 9 AM–12 PM89%(348 flights)
  • 12–3 PM—(2 flights)
On-time trend by month
94%
May

Jun 85% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%60
July 202594%62
August 202593%58
September 202592%60
October 202585%60
November 202586%42
December 202590%62
January 202687%62
February 202677%53
March 202661%62
April 202692%60
May 202694%62
Departures on time
87%
Diverted
0%
Flights flown
703
Months covered
12

Keep nerding

Based on 717 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.