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(DL) Delta Air Lines 397 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(TRI) Tri-Cities Regional Airport

Bristol, VA/Johnson City/Kingsport, TN, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
24
96%
Late
0
0%
Very Late
0
0%
Excessive
1
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
50
Standard Deviation
52.3
Min
0
Max
87

DL 397 On-Time Performance Details

Overall Rating
3.2 of 5
Average
Percentage On-Time 96%
Average Delay Time 50 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 62% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 96%
This flight has an on-time performance of 96%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 50 min
This flight has an average delay of 50 minutes with a standard deviation of 52.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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