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(DL) Delta Air Lines 9477 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(BLQ) Bologna Guglielmo Marconi Airport

Bologna, IT

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

On-Time Performance Chart

(using rounded numbers)
On-Time
13
87%
Late
2
13%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
15
Total Delays ( > 1 min )
9
Codeshares
15
Average Delay (min.)
6.666666666666667
Standard Deviation
6.7
Min
0
Max
20

DL 9477 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 87%
Average Delay Time 6.666666666666667 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 88% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
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 86% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 6.666666666666667 min
This flight has an average delay of 6.666666666666667 minutes with a standard deviation of 6.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.

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