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(DL) Delta Air Lines 3977 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(LEX) Blue Grass Airport

Lexington, KY, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
36
84%
Late
2
5%
Very Late
0
0%
Excessive
4
9%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
12
Codeshares
43
Average Delay (min.)
64.83333333333333
Standard Deviation
93.7
Min
0
Max
291

DL 3977 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 84%
Average Delay Time 64.83333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 48% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 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 95% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 64.83333333333333 min
This flight has an average delay of 64.83333333333333 minutes with a standard deviation of 93.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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