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(DL) Delta Air Lines 4644 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-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
10
91%
Late
0
0%
Very Late
1
9%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
11
Total Delays ( > 1 min )
2
Codeshares
11
Average Delay (min.)
18
Standard Deviation
21.2
Min
0
Max
33

DL 4644 On-Time Performance Details

Overall Rating
3.8 of 5
Good
Percentage On-Time 91%
Average Delay Time 18 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 74% of all other flights in the FlightStats database.
On-Time Performance Rating
4.2 of 5
Good
Percentage On-Time 91%
This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 84% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 18 min
This flight has an average delay of 18 minutes with a standard deviation of 21.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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