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(DL) Delta Air Lines 3994 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(MSN) Dane County Regional Airport

Madison, WI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
63%
Late
6
15%
Very Late
3
8%
Excessive
6
15%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
40
Total Delays ( > 1 min )
18
Codeshares
40
Average Delay (min.)
56.27777777777778
Standard Deviation
71.7
Min
0
Max
268

DL 3994 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 63%
Average Delay Time 56.27777777777778 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 4% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 56.27777777777778 min
This flight has an average delay of 56.27777777777778 minutes with a standard deviation of 71.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.

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