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

Date Range:

01-Jun-2025 to 31-Jul-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
36
73%
Late
4
8%
Very Late
4
8%
Excessive
5
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
49
Total Delays ( > 1 min )
19
Codeshares
49
Average Delay (min.)
36.68421052631579
Standard Deviation
38.2
Min
0
Max
132

DL 3631 On-Time Performance Details

Overall Rating
3.2 of 5
Average
Percentage On-Time 74%
Average Delay Time 36.68421052631579 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 63% of all other flights in the FlightStats database.
On-Time Performance Rating
3.5 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 36.68421052631579 min
This flight has an average delay of 36.68421052631579 minutes with a standard deviation of 38.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.