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(DL) Delta Air Lines 3909 On-Time Performance Rating

Date Range:

01-Jun-2025 to 31-Jul-2025

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(AZO) Kalamazoo - Battle Creek International Airport

Kalamazoo, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
61%
Late
1
2%
Very Late
6
10%
Excessive
15
25%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
24
Codeshares
60
Average Delay (min.)
137.95833333333334
Standard Deviation
204.8
Min
0
Max
957

DL 3909 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 62%
Average Delay Time 137.95833333333334 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 62%
This flight has an on-time performance of 62%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 7% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 137.95833333333334 min
This flight has an average delay of 137.95833333333334 minutes with a standard deviation of 204.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.