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(DL) Delta Air Lines 9170 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

(BLQ) Bologna Guglielmo Marconi Airport

Bologna, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
38
72%
Late
6
11%
Very Late
3
6%
Excessive
6
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
53
Total Delays ( > 1 min )
35
Codeshares
53
Average Delay (min.)
23.571428571428573
Standard Deviation
28.9
Min
0
Max
114

DL 9170 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 72%
Average Delay Time 23.571428571428573 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 56% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 23.571428571428573 min
This flight has an average delay of 23.571428571428573 minutes with a standard deviation of 28.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.

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