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(DL) Delta Air Lines 4120 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(SDF) Louisville Muhammad Ali International Airport

Louisville, KY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
10
59%
Late
1
6%
Very Late
3
18%
Excessive
3
18%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
10
Codeshares
17
Average Delay (min.)
50
Standard Deviation
49.6
Min
0
Max
138

DL 4120 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 59%
Average Delay Time 50 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 59%
This flight has an on-time performance of 59%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 5% of other flights.
Delay Performance
1.1 of 5
Poor
Average Delay Time 50 min
This flight has an average delay of 50 minutes with a standard deviation of 49.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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