background

(DL) Delta Air Lines 4638 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(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
15
88%
Late
1
6%
Very Late
0
0%
Excessive
1
6%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
3
Codeshares
17
Average Delay (min.)
112.66666666666667
Standard Deviation
177.9
Min
0
Max
318

DL 4638 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 88%
Average Delay Time 112.66666666666667 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 47% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 93% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 112.66666666666667 min
This flight has an average delay of 112.66666666666667 minutes with a standard deviation of 177.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

Other Stops for DL 4638