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

Date Range:

01-Oct-2025 to 30-Nov-2025

(BEG) Belgrade Nikola Tesla Airport

Belgrade, RS

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

On-Time Performance Chart

(using rounded numbers)
On-Time
47
84%
Late
2
4%
Very Late
3
5%
Excessive
4
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
56
Total Delays ( > 1 min )
22
Codeshares
56
Average Delay (min.)
34.81818181818182
Standard Deviation
51.5
Min
0
Max
181

DL 9439 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 84%
Average Delay Time 34.81818181818182 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 66% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 34.81818181818182 min
This flight has an average delay of 34.81818181818182 minutes with a standard deviation of 51.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

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