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(DL) Delta Air Lines 9520 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(FCO) Rome Leonardo da Vinci Fiumicino Airport

Rome, IT

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

On-Time Performance Chart

(using rounded numbers)
On-Time
22
61%
Late
8
22%
Very Late
4
11%
Excessive
2
6%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
31
Codeshares
36
Average Delay (min.)
17.548387096774192
Standard Deviation
17.3
Min
0
Max
83

DL 9520 On-Time Performance Details

Overall Rating
2.6 of 5
Average
Percentage On-Time 61%
Average Delay Time 17.548387096774192 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.6 shows that this flight has on-time performance characteristics better than 50% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 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 5% of other flights.
Delay Performance
4.8 of 5
Very Good
Average Delay Time 17.548387096774192 min
This flight has an average delay of 17.548387096774192 minutes with a standard deviation of 17.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 96% of other flights.

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