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(DL) Delta Air Lines 9439 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(BEG) Belgrade Nikola Tesla Airport

Belgrade, RS

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

On-Time Performance Chart

(using rounded numbers)
On-Time
41
71%
Late
6
10%
Very Late
6
10%
Excessive
4
7%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
30
Codeshares
58
Average Delay (min.)
21.966666666666665
Standard Deviation
19
Min
0
Max
76

DL 9439 On-Time Performance Details

Overall Rating
3.0 of 5
Average
Percentage On-Time 71%
Average Delay Time 21.966666666666665 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 59% of all other flights in the FlightStats database.
On-Time Performance Rating
1.5 of 5
Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
4.5 of 5
Good
Average Delay Time 21.966666666666665 min
This flight has an average delay of 21.966666666666665 minutes with a standard deviation of 19 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 90% of other flights.

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