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

Date Range:

15-Dec-2025 to 15-Feb-2026

(MSN) Dane County Regional Airport

Madison, WI, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
80%
Late
1
4%
Very Late
3
12%
Excessive
1
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
7
Codeshares
25
Average Delay (min.)
46
Standard Deviation
64.1
Min
0
Max
188

DL 3994 On-Time Performance Details

Overall Rating
2.7 of 5
Average
Percentage On-Time 80%
Average Delay Time 46 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 52% of all other flights in the FlightStats database.
On-Time Performance Rating
3.9 of 5
Good
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 79% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 46 min
This flight has an average delay of 46 minutes with a standard deviation of 64.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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