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(DL) Delta Air Lines 3949 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(CMH) John Glenn Columbus International Airport

Columbus, OH, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
52%
Late
3
10%
Very Late
5
17%
Excessive
6
21%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
29
Total Delays ( > 1 min )
19
Codeshares
29
Average Delay (min.)
45.526315789473685
Standard Deviation
48.5
Min
0
Max
203

DL 3949 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 52%
Average Delay Time 45.526315789473685 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 10% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 52%
This flight has an on-time performance of 52%. 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
1.1 of 5
Poor
Average Delay Time 45.526315789473685 min
This flight has an average delay of 45.526315789473685 minutes with a standard deviation of 48.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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