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(DL) Delta Air Lines 5615 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(SDF) Louisville Muhammad Ali International Airport

Louisville, KY, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
30
67%
Late
6
13%
Very Late
2
4%
Excessive
2
4%
Cancelled
5
11%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
13
Codeshares
45
Average Delay (min.)
38
Standard Deviation
50.4
Min
0
Max
190

DL 5615 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 67%
Average Delay Time 38 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 23% of all other flights in the FlightStats database.
On-Time Performance Rating
0.5 of 5
Very Poor
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 10% of other flights.
Delay Performance
1.9 of 5
Average
Average Delay Time 38 min
This flight has an average delay of 38 minutes with a standard deviation of 50.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.

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