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(DL) Delta Air Lines 517 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(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
19
68%
Late
2
7%
Very Late
1
4%
Excessive
5
18%
Cancelled
1
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
38.64705882352941
Standard Deviation
55.5
Min
0
Max
220

DL 517 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 68%
Average Delay Time 38.64705882352941 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 36% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 38.64705882352941 min
This flight has an average delay of 38.64705882352941 minutes with a standard deviation of 55.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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