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(DL) Delta Air Lines 8421 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(CDG) Paris Charles de Gaulle Airport

Paris, FR

(BLQ) Bologna Guglielmo Marconi Airport

Bologna, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
37
61%
Late
16
26%
Very Late
2
3%
Excessive
6
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
47
Codeshares
61
Average Delay (min.)
21.51063829787234
Standard Deviation
25.4
Min
0
Max
130

DL 8421 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 61%
Average Delay Time 21.51063829787234 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
0.0 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. 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
4.6 of 5
Very Good
Average Delay Time 21.51063829787234 min
This flight has an average delay of 21.51063829787234 minutes with a standard deviation of 25.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.