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(DL) Delta Air Lines 571 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(BOS) Boston Logan International Airport

Boston, MA, US

(SAN) San Diego International Airport

San Diego, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
70%
Late
10
17%
Very Late
4
7%
Excessive
4
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
34
Codeshares
0
Average Delay (min.)
23.11764705882353
Standard Deviation
24.7
Min
0
Max
104

DL 571 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 70%
Average Delay Time 23.11764705882353 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 45% of all other flights in the FlightStats database.
On-Time Performance Rating
0.4 of 5
Very Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 8% of other flights.
Delay Performance
4.2 of 5
Good
Average Delay Time 23.11764705882353 min
This flight has an average delay of 23.11764705882353 minutes with a standard deviation of 24.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.

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