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(DL) Delta Air Lines 9581 On-Time Performance Rating

Date Range:

15-May-2025 to 15-Jul-2025

(LHR) London Heathrow Airport

London, EN, GB

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

On-Time Performance Chart

(using rounded numbers)
On-Time
33
77%
Late
6
14%
Very Late
2
5%
Excessive
0
0%
Cancelled
2
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
15
Codeshares
43
Average Delay (min.)
16.266666666666666
Standard Deviation
11.9
Min
0
Max
38

DL 9581 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 77%
Average Delay Time 16.266666666666666 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 83% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 16.266666666666666 min
This flight has an average delay of 16.266666666666666 minutes with a standard deviation of 11.9 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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