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(DL) Delta Air Lines 3631 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(MDW) Chicago Midway International Airport

Chicago, IL, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
92%
Late
0
0%
Very Late
2
8%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
8
Codeshares
24
Average Delay (min.)
12.375
Standard Deviation
16.7
Min
0
Max
43

DL 3631 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 92%
Average Delay Time 12.375 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 89% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 92%
This flight has an on-time performance of 92%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
4.2 of 5
Good
Average Delay Time 12.375 min
This flight has an average delay of 12.375 minutes with a standard deviation of 16.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.

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