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(DL) Delta Air Lines 4991 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(AEX) Alexandria International Airport

Alexandria, LA, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
45
71%
Late
4
6%
Very Late
1
2%
Excessive
10
16%
Cancelled
1
2%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
20
Codeshares
61
Average Delay (min.)
81.25
Standard Deviation
140.6
Min
0
Max
631

DL 4991 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 74%
Average Delay Time 81.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
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 16% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 81.25 min
This flight has an average delay of 81.25 minutes with a standard deviation of 140.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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