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(DL) Delta Air Lines 4149 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
53%
Late
6
16%
Very Late
2
5%
Excessive
8
21%
Cancelled
2
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
22
Codeshares
38
Average Delay (min.)
78.54545454545455
Standard Deviation
108.1
Min
0
Max
387

DL 4149 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 53%
Average Delay Time 78.54545454545455 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 53%
This flight has an on-time performance of 53%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 78.54545454545455 min
This flight has an average delay of 78.54545454545455 minutes with a standard deviation of 108.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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