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

Date Range:

01-Jun-2026 to 31-Jul-2026

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
67%
Late
0
0%
Very Late
1
33%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
3
Total Delays ( > 1 min )
1
Codeshares
3
Average Delay (min.)
39
Standard Deviation
0
Min
0
Max
39

DL 9520 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 67%
Average Delay Time 39 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 41% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 39 min
This flight has an average delay of 39 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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