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(DL) Delta Air Lines 531 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
39
83%
Late
1
2%
Very Late
3
6%
Excessive
3
6%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
40.09090909090909
Standard Deviation
39.9
Min
0
Max
146

DL 531 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 83%
Average Delay Time 40.09090909090909 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
4.6 of 5
Very Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
1.9 of 5
Average
Average Delay Time 40.09090909090909 min
This flight has an average delay of 40.09090909090909 minutes with a standard deviation of 39.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.

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