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(DL) Delta Air Lines 4631 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(CHA) Chattanooga Metropolitan Airport

Chattanooga, TN, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
77%
Late
3
14%
Very Late
0
0%
Excessive
2
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
22
Total Delays ( > 1 min )
11
Codeshares
22
Average Delay (min.)
21.727272727272727
Standard Deviation
26.3
Min
0
Max
84

DL 4631 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 77%
Average Delay Time 21.727272727272727 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-Time Performance Rating
2.7 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 21.727272727272727 min
This flight has an average delay of 21.727272727272727 minutes with a standard deviation of 26.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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