background

(DL) Delta Air Lines 2009 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(SAT) San Antonio International Airport

San Antonio, TX, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
43
72%
Late
5
8%
Very Late
3
5%
Excessive
7
12%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
55.86363636363637
Standard Deviation
91.3
Min
0
Max
407

DL 2009 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 73%
Average Delay Time 55.86363636363637 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 12% of all other flights in the FlightStats database.
On-Time Performance Rating
1.1 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 55.86363636363637 min
This flight has an average delay of 55.86363636363637 minutes with a standard deviation of 91.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.