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

Date Range:

01-Aug-2026 to 30-Sep-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
32
86%
Late
2
5%
Very Late
0
0%
Excessive
3
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
37
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
59.05882352941177
Standard Deviation
168.8
Min
0
Max
700

DL 517 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 87%
Average Delay Time 59.05882352941177 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 59.05882352941177 min
This flight has an average delay of 59.05882352941177 minutes with a standard deviation of 168.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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