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(DL) Delta Air Lines 1399 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(MIA) Miami International Airport

Miami, FL, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
50
81%
Late
1
2%
Very Late
3
5%
Excessive
6
10%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
18
Codeshares
0
Average Delay (min.)
44.111111111111114
Standard Deviation
74
Min
0
Max
328

DL 1399 On-Time Performance Details

Overall Rating
3.2 of 5
Average
Percentage On-Time 82%
Average Delay Time 44.111111111111114 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 63% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 44.111111111111114 min
This flight has an average delay of 44.111111111111114 minutes with a standard deviation of 74 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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