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(DL) Delta Air Lines 8520 On-Time Performance Rating

Date Range:

01-Apr-2025 to 31-May-2025

(CDG) Paris Charles de Gaulle Airport

Paris, FR

(ZRH) Zurich Airport

Zurich, CH

On-Time Performance Chart

(using rounded numbers)
On-Time
30
58%
Late
10
19%
Very Late
1
2%
Excessive
10
19%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
52
Total Delays ( > 1 min )
34
Codeshares
52
Average Delay (min.)
30.264705882352942
Standard Deviation
27.8
Min
0
Max
109

DL 8520 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 58%
Average Delay Time 30.264705882352942 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.5 shows that this flight has on-time performance characteristics better than 28% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 58%
This flight has an on-time performance of 58%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 30.264705882352942 min
This flight has an average delay of 30.264705882352942 minutes with a standard deviation of 27.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

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